@^D)^q ,c ^ i ^ u j (^:( ,^ A " i ( 1- - § Vol. 4, No. 1. PROCEEDINGS L3 VP t^v t- X OF THE Entomological Society OF PHILADELPHIA. JANUARY AND FEBRUARY, 1865. Ijp PHILADELPHIA: PRINTED BY THE SOCIETY At the Hall, No. 518 South IZth Street. 0^ n p ( 5 : !! > - PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF PHILADELPHIA. VOL. IV. 1865. PHILADELPHIA : PRINTED BY THE SOCIETY 1865. Amx LIST OF PAPERS PAGE Bethune, Rev. C. J. S. Descriptions of three new species of Canadian Nocturnal Lepi- doptera, ......... 218 Blake, Charles A. Description of a new species of Cuban Lepidoptera, . 813 Bland, James H. B. Descriptions of several new species of North American Cole- optera, . . . . . . . . • 3Sl Compiled descriptions of North American Staphylinidae, 391 Cresson, E. T. On the Hyrnenoptera of Cuba. ..... 1 Catalogue of Hyrnenoptera in the Collection of the Entomologi- cal Society of Philadelphia, from Colorado Territory, 242, 426 Descriptions of some new species of Mutilla, from California, 385 Edwards, W. H. Description of certain species of Diurnal Lepidoptera, found within the limits of the United States and British America, No. 4, 201 Notes upon Papilio asterias and Saturnia Promethea herma- phrodites, ........ 390 Grote, Aug. R. On the Synonymy of Parathyris Angelica, Grote, . . 207 Descriptions of North American Lepidoptera, No. 6, . 315 Grote & Robinson. Description of a new species of Citheronia, and remarks on Anisota rubicunda, ....... 222 Lepidopterological Notes and Descriptions, No. 1, . . 489 IV Osten Sacken. Baron R. Description of some new genera and species of North Ameri- can Limnobina, Part 1, • • • - --^ Contributions to the Natural History of the Cynipidae of the United States and of their (rails, Article 4. . 331 Reakirt, Tryon. Observations upon some American Pierinae, . . 216 Shimer, Henry. Description of the imago and larva of a new species of Chry- sopa • - (,s PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF PHILADELPHIA. ON THE HYMENOPTERA OF CUBA. BY E. T. CRESSON. ( Communicated November 14, 1S64.) The materials used in the preparation of this paper are derived prin- cipally from the fine original collection of Prof. Felipe Poeyof Havana, Cuba, procured and most generously presented by Dr. Thos. B. Wilson to the Entomological Society of Philadelphia; also from the uniques in the collection of Dr. John Grundlach of Cuba, who has kindly loaned them to me. and who possesses, probably, the most complete collections extant of all orders of Cuban Insects. To Prof. Poey and Dr. Guudlach, I am greatly indebted for valua- ble notes upon the habits, &c, of many species. Most of the Chalcididse, the Proctotrupidse and the FormicidaJ. have been reserved for future papers, as the minute size of many of them require careful study, and specimens in good condition, before reliable descriptions can be made. The collection before me contains, of Chal- cididse and Proctotrupidai about 80 species, and of Forinicidae about 00 species; of the latter many have been described by Roger and Mayr. Of the other families, including the larger Chalcididse, over 300 species are enumerated below, of which number about 250 seem to be new. Fam. TENTHREDINID.E. Genus LOPHYRUS, Latr. Lophyrus insularis. n. sp. % . black, wings hyaline, legs whitish: £> , head, thorax and tip of abdomen ferruginous, dorsal segments of abdomen black, their sides and ventral segments whitish, wings subhyaline. Male. — Shining black; the clypeus, mandibles and palpi, pale testa- ceous; antennae black, shorter than the thorax, lanceolate, with 17 rays 2 [January on each side and a simple terminal joint, the basal joint beneath testa- ceous. Wings hyaline, iridescent; nervures and base of stigma dusky, the former pale at base; posterior wings slightly dusky. Legs whitish, tarsal claws blackish. Abdomen ovate, depressed ; the extreme apex, above and beneath, ferruginous. Length 31 lines ; expanse of wings 62 lines. Female. — Robust, depressed, shining; head and thorax ferruginous; antennae nearly as long as the thorax, black. Wings tinged with fuli- ginous, slightly iridescent ; nervures black. Legs whitish ; middle of femora, apical half of tibiae and most of the tarsi, black. Abdomen broad, ovate, depressed; dorsal segments black, their sides whitish; the two apical segments ferruginous; ventral segments pale, varied on each side with blackish. Length 4] lines; expanse of wings 9J lines. Collection. — Ent. Soc. Philad. 3 % and 3 $ specimens. This species feeds on the leaves of the Pine. The cocoons are oblong- oval, of a pale cinnamon color; those of the 9 being 5 lines long by 2i broad, those of the % 4 by 2. Fam. UROCERIDJE. Genus TREMEX, J urine. Tremex cubensis. n. sp. Yellowish; mesothorax, scutellums, pleura, anterior portion of metathorax. femora, and several uneven bands on abdomen, brown or blackish ; apical seg- ment of abdomen dull ferruginous: wings deep yellowish-hyaline, dusky at tips. Female. — Head roughly punctured, slightly pubescent, yellow, tips of mandibles black; antennae yellow (broken oif beyond the 3rd joint). Prothorax large, covered with small, brownish tubercles, yellow, some- what shining, with a deep brown puncture on the middle, lateral ante- rior angles rounded and prominent; collar brownish; mesothorax small, flat, very densely and confluently punctured or finely scabrous, brown- black, with a light brownish stain; scutellum and side pieces sculptured and colored like the mesothorax ; whole under surface of the thorax bronze-black, pubescent, densely punctured, shining; basal portion of the metathorax blackish-brown, margined posteriorly with light brown, pos- terior portion yellow, the dorsal suture blackish. Wings deep yellowish- hyaline, the apex dusky; nervures pale ferruginous. Legs bright yel- low, flattened, especially the basil joint of the posterior tarsi, which is dilated, lobed at tip and as long as the femora and tibiae together; femora rugose, bronze-black, their base and the coxae tinged with ru- fous. Abdomen robust, velvety, pale yellowish, tinged with fulvous ; basal segment, apical margins of the 2nd, 5th, Gth and 7th segments 1865.] 3 more or less broadly black, that on the 6th segment broad and strongly sinuate anteriorly, that on the 7th segment broadly and deeply indented in the middle; apical margins of the 3rd and 4th segments slightly dusky; apical segment large, dull ferruginous, broadly concave on the disk above, the tip pointed and rugose, and the extreme sides blackish ; ovipositor not exserted, sheaths dull testaceous. Length 10 lines; ex- panse of wings 16 lines. Collection. — Ent. Soc. Philad. One specimen. The neuration of the anterior wing of this fine species is similar to that of the following, but the right wing has two submarginal cells of which the 2nd is one-third shorter, and the 2nd discoidal cell is shorter and more quadrate than in that species ; while the left wing has but one long submarginal cell, as in the typical Tremex, the dividing ner- vure being entirely obliterated. Both this and the following species seem to be intermediate between Urocerus and Tremex, the neuration of the wings differing from both genera. Tremex latitarsus, n. sp. % . Head, thorax and legs blue-black ; abdomen ferruginous : wings fusco-hy- aline; hind legs broad and flat. Male. — Head roughly punctured, blue-black, clothed with an erect pale yellowish pubescence, much longer on the cheeks beneath ; the vertex, posterior margin of the cheeks and the mouth, tinged with dull rufous ; eyes oval and pale yellowish ; antennae a little longer than the Fig. l. head, 5-jointed,* (Fig. 1, «) the first joint ^H!!S3= rather long and slightly curved, second joint _V^"C-^ : ^3- very small, about as long as broad, third ra- ther more than twice as long as the second, <^\ fourth joint about same length as the first c \\x ^vx. and rather longer than the second and third a y- together, the apical joint as long as the se- cond, third and fourth together, very slightly curved and flat and some- what twisted on the inside, the joints have a slight pubescence, espe- cially at the incisures. Thorax thinly clothed with an erect pale *Or possibly 6-jointed, as the apical joint, examined under a powerful lens, has. exteriorly, a very faint indication of a suture about the middle, but on the inside there is no appearance whatever of a suture; in other individuals, this indication of a suture maybe more distinct, but I care not to be positive of there being more than 5 joints, although Westvvood mentions that in the case of Uro- cerus gigas, the two apical joints of the antennae are "closely soldered together." {Intr. II, p 114, note +.) It seems very remarkable, however, that there should be only 5, or even 6, joints in the antennae, as Westwood, speaking of the whole family Uroceridse, limits the number of joints from 10 to 25 (ibid. p. 114). 4 [January pubescence, blue-black, slightly blue-green above, the mesothorax scabrous and tinged with dull rufous as well as the scutellum ; anterior dorsal part of the metathorax blue-black, the posterior part ferruginous, the longitudinal impression down the middle blackish ; pleura finely punctured and shining; tegulae dull rufous. Wings (Fig. 1, 6) fusco-hyaline, the apical margins and the posterior wings more deeply and uniformly fuscous ; nervures and stigma also fuscous. Legs : the two anterior pairs rather slender, somewhat flattened and rufo-pice- ous, tinged with steel-blue; posterior legs deep blue, their tibiae and basal joint of their tarsi very broad and flat, the latter broadly lobed behind (Fig. 1. c), remaining joints of the tarsi rufous and hairy, the 2nd, 3rd and 4th very short, the claws bifid. Abdomen ferruginous, opaque above, except the apical margins of the segments which arc shining; the apical and lateral margins and broad line down the mid- dle of the basal segment, and the apical margins of the 3rd and 8th segments above, black or blue-black, the extreme lateral margins of the dorsal segments spotted with blue-black ; ventral segments ferruginous, shining with a purple gloss. Length 82 lines; expanse of wings 121 lines. Collection.— tint Soc.Philad. Two specimens examined, one of which was kindly loaned me by Dr. Grundlach. This remarkable species differs from the typical species of Tremex by the different structure of the antennae and hind legs, and the some- what different veining of the anterior wings; otherwise I see no differ- ence, and prefer, for the present, to describe it under that genus. The narrow wings and short antennae distinguishes it at once from Urocerus. Fain. CYNIPIM1. Gen. CYNIPS, Linn. Cynips'f armatus. n. sp. Head and antennae black: thorax reddish-brown: legs and abdomen rufous: wings fuscous, the base and apical third hyaline; scutellum armed with an acute s]>in<\ Female. — Head black, polished; mandibles rufous; antennae as long as the head and thorax, black, the five basal joints piceous, 13-jointed. the joints very distinct, 2nd joint short and globose, 3rd joint longest, narrowed towards the base, longer than the 1st and 2nd together, the 4th and two following joints subequal, each about half the length of the 3rd, remaining joints subequal, each about same length as the 4th, be- coming gradually wider towards the tip, flattened, and minutely striated longitudinally, terminal joint about one-fourth longer than the penulti- mate, incisures of the joints pubescent, the pubescmce becoming longer 1865.1 5 towards the tip. Thorax smooth and polished, reddish-brown, convex above, and having on the extreme front a transverse, compressed, deeply eiuarginate elevation ; lateral sutures of the mesothorax dark brown ; tegulae dull rufous; scutellum produced, reddish-brown, its dorsal sur- face broadly and very deeply excavated, leaving the sides thin and sharp, its posterior face subquadrate, broadly concave, with the four corners tuberculate, and from the middle of the anterior margin proceeds a ra- ther long, acute spine, broad at base, suddenly constricted about the middle, and then gradually tapering to the tip, which is acute; meta- thorax pubescent, with two longitudinal, sinuate ridges down the mid- dle, between which the surface is rather deeply excavated. Wings hyaline, with a very broad fuscous band down the middle of both wings, occupying more than one-half the length of the wing ; principal veins dark brown; radial area broad and rather short, closed; areolet obsolete, Fig. 2. or merely indicated by a brown dot Legs, including the coxae, rufous. Abdomen convex, smooth and po- lished, rufous, viewed laterally nearly as wide as long, the 2nd segment occupying about half its surface ; basal segment annular, and clothed with a dense pale yellowish pubescence; ovipositor stout, projecting above the ventral valve. Length If line. Collect ion. — Ent. Soc. Philad. Two specimens. Belongs to the true Cynipidae, but on account of the remarkable sculptui-e of the scutellum and the veining of the wings, lam uncertain to what genus it belongs, and therefore I place it, for the present, under the head of Cgnips. The two transverse dotted lines in the figure of the wing indicate the width of the fuscous band; the other dotted lines indicate subobsolete nervures. Genus EUCOILA. Westw. Eucoila? basalis, n. sp. Black: antennae, legs and base of abdomen rufous: wings hyaline: scutellum with a deep, broad excavation at base and an oval, slightly elevated space near the tip. Female. — Black, polished, mouth rufous; antennae half the length of the body, rufous, thickened and blackish towards the tips, pubescent, 13-jointed, basal joint short and thick, narrow at base, 2nd joint short and globose, 3rd joint longest, 4th shorter than the 3rd and equal with the three following joints, remaining joints submoniliform. gradually thickened, terminal joint one-half longer than the penultimate. Thorax above convex, smooth and polished; collare with a patch of yellowish pubescence on each side ; tegulse honey-yellow ; scutellum somewhat produced, with abroad, transverse, very deep excavation at base, behind I) [Januarv which the surface is rugose, with an ovate space, slightly elevated, its anterior portion extending down into the excavation in front of it, this space is margined with yellowish, slightly sulcate and has a lateral row of punctures close to the margin, and its tip excavated ; metathorax with two longitudinal carinas down its middle. Wings hyaline, ner- vures pale yellowish, indistinct; radial area short and broad, closed; areolet obsolete. Legs, with the coxae, dull rufous. Abdomen ovate. subcompressed, smooth and polished; basal segment annular, pale ru- fous, finely aciculate ; second segment occupying nearly the entire dorsal surface, on each side at the extreme base there is a row of deep punctures; ventral valve tipped with yellowish; ovipositor yellowish, slightly exserted. Length 1£ line. Collection. — -Dr. J. Gundlach. One specimen. This and the next species seems to belong either to Eucoila Westw. or Kleidotoma Westw., but I am not sure to which trenus they properly belong. The sculpture of the scutellum is very much like that of Eu- coila melanoptera Hartig (Europe), but otherwise there is but little similarity. I refer them, therefore, doubtfully, to Eucoila. Eucoila? carinata, n sp. Black; antennae brown: legs honey -yellow: tnesothorax with 4 longitudinal earinse : wings hyaline. Female? — Black ; antennas as long as the body, brown, 13-jointed, the joints distinct, two basal joints short, 3rd and 4th equal, each as long as the 1st and 2nd together, the following joints submoniliform, longer than wide, each a little shorter than the 4th joint, finely striated, ter- minal joint slightly longer than the penultimate. Thorax somewhat shining; mesothorax with four longitudinal well defined carinse extend- ing from the collare to the base of scutellum, the two middle ones ap- proximate ; tegulae rufous ; scutellum and metathorax sculptured as in the preceding species. Wings hyaline, basal third yellowish-fuscous, nervures very pale yellowish, indistinct; radial area short and subtri- angular, closed ; areolet obsolete. Legs honey-yellow, coxae rufous. Abdomen, short, convex, smooth and polished; basal segment annular, pale rufous; 2nd segment very large and concealing the apical segment. Length f line. Collection. — Dr. J. Grundlach. One specimen. Genus ASPICERA, Dahlbom. Aspicera rufipes, n. sp. Black; antennae and legs rufous; wings hyaline ; scutellar spine rather lona; and acute. Male. — Black; head opaque; antennae rather longer than the body, 1865.] 7 dull rufous, 14-jointed, the joints very distinct, the basal joint rather short, blackish, 2nd joint very short and globose, remaining joints equal, each being as long as the 1st and 2ud together, flattened, terminal joint scarcely longer than the penultimate. Thorax somewhat shining; me- sothorax with two deeply impressed lines, broader posteriorly, converg- ing on the scutellum, and between them and immediately in front of the scutellum a triangular impressed space, the elevations and depres- sions having the appearance of a W; scutellum produced, uneven, with two very deep, approximate excavations at base, and bearing posteriorly a rather long and acute spine, before the base of which there is a deep oblong excavation with the sides carinate, base of the spine dilated, gradually acuminate towards the tip; posterior portion of the scutellum. under the spine, longitudinally striated; metathorax opaque, pubescent, with two much elevated, obtuse, longitudinal carinas down the middle. Wings hyaline, the nervures yellowish ; radial area short, broad, sub- triangular, closed in front, open behind, by the nervure between it and the costal cell being obsolete; areolet obsolete. Legs, with the coxae, rufous. Abdomen short, convex, smooth and polished, black, its ex- treme base and sides tinged with rufous; basal segment annular and aciculate ; the suture between the second and third segments connate, the third segment twice as long as the second, and concealing the apical and ventral segments. Length If line. Collection. — Dr. J. Gundlach. One specimen. I have referred this and the next species to Aspicera, as the sculp- ture of the scutellum and the neuration of the wings seem to coincide with those of that genus, a figure of which is given by Dr. Reinhard in Berl. Entom. Zeits. 186JJ, pi. 4, fig. 7. The structure of the antennas is, however, different. Aspicera bifoveolata, n. sp. Black; antennae and legs honey-yellow; wings hyaline: scutellar spine acute. Female. — Black, polished, head and thorax slightly pubescent; an- tennae as long as the head and thorax, pubescent, honey-yellow, the basal joint piceous, 13-jointed, the joints very distinct, first joint mode- rately long, narrowed at base, 2nd joint about half the length of the 1st, a little longer than broad, the three following joints equal, each one- half longer than the 2nd, the 6th to 12th joints submoniliform. about equal in length and bre idth, each being about the same length as 8rd joint but broader and finely aciculate, terminal joint twice as long as the penultimate. Thorax polished ; mesothorax and scutellum sculp- tured exactly as in the preceding species, except that the excavation between the striae in front of the scutellum is scarcely perceivable; and 8 [January the oblong excavation at the base of the spine on the scutellum is not so deep. Wings hyaline, the nervures very pale yellowish, almost hya- line, the radial ai*ea closed, shaped as in the preceding species ; areolet obsolete. Legs, with the coxae, honey-yellow, pubescent, Abdomen ovate, convex, smooth and polished, the extreme base of the 2nd seg- ment and the ventral valve tinged with rufous; basal segment annular and aciculate ; 3rd segment twice the length of the second, the suture between them connate; 3rd segment not concealing the apical ones; ovipositor slightly exserted, yellowish. Length 1 line. Collection. — Dr. J. G-undlach. One specimen. ( 'losely resembles the preceding species, but is much smaller and less robust; the antennae has one more joint and is differently shaped, and the legs differently colored. Earn. EVAN II IKE. Gen. EVANIA, Fabr. Evania laevigata, Oliv. Evania laevigata Oliv. Encyl. Meth. vi. p. 453. Guer. Icon. Reg. Anim. iii. p. 405; LaSagra, Hist. Cuba Ins. p. 751. Westw. Trans. Ent. Soe. Loml. new ser. i. p. 213. Evania Cuba. Guer. Icon. Reg. Anim. iii. p. 405: tab. 05. lig. 1. Collection. — Ent. Soe. Philad. ITS and 9 specimens. Tins species devours the eggs of Blatta americctiia Evania semirubra. n. sp. Rufous'; anteim;e. four posterior legs, except coxae, and the abdomen, black : wings hyaline. % 9 • — Head rufous; antenme as long as the body, entirely black. Thorax entirely rufous; metathorax transversely rugose ; tegulne rufous. Wings hyaline; nervures aud stigma black. Legs black; all the coxa' and the anterior legs, somewhat obfuscated exteriorly, rufous. Abdo- men ovate % , securiform 9 . very much compressed, shining, black ; petiole slender, as long as the rest of the abdomen. Length 4 lines ; expanse of wings 8 lines. Collection. — Ent. Soe. Philad. £ ; Dr. J. Gundlach $ . Evania (Hyptiam) Poeyi. Guer. Evania (Hyptiam) Poci/i. Guer. Rev. Zool. 1843, p. 335; LaSagra, Hist. Cuba Ins. p. 752, pi. IS, fig. 3. Westw. Trans. Ent. Soe. Lend, new ser. i, p. 214. Collection. — Ent. Soe. Philad. Two specimens. AULACODES, nov. gen. (Fig. 3, a.) ILad very large, transverse or slightly subglobose; eyes small ami round; antennae, moderate, setaceous, inserted on the middle of the face. 1865.] b composed of about 24 joints, basal joint long and cylindric, 2nd short. Fig. 3. 3rd as long as the first, remaining joints gra- dually shorter ; immediately behind the base of the antenna? a deep longitudinal excavation, with the lateral margins earinated, and also with a carina down its middle ; ocelli arranged in a triangle on the vertex and at the head of the frontal excavation, in which the lower ocellus is situated; mandibles small, palpi slen- der. Thorax short and thick, collar not elon- gate ; mesothorax slightly gibbous, abrupt in front, the lobes prominent; scutellum convex; metathorax (Fig. 3, b) short, very abruptly truncate behind, the abdomen, which is short, ovate and depressed, is inserted near the base just on the top of the declivity (Fig. 3, c), making the distance between the insertion of the abdomen and the posterior coxae greater than in Aulacus. Wings moderate, stigma rather large and triangular, emaroinate beneath near the base ; marginal cell long and lanceolate ; three submarginal cells, the second much smaller than the first, subijuadrate, the third extending to the tip of the wing, the single recurrent nervure received at the junction be- tween the first and second submarginal cells, Legs moderate, the pos- terior pair longest and stoutest, the coxae robust, the posterior pair not elongate; femora moderately stout; four posterior tibiae each with two short, stout, subequal apical spurs; tarsal claws apparently simple, with large pulvilli. Ovipositor longer than the body. This rema'-kable genus resembles, at first sight, a small species of AuJactm, with a large head, but on a closer examination the characters are found to be very dissimilar. It seems to form a very close con- necting link between the Ichneumones adsciti and the Evaniidse; from the former it differs by the mode of the insertion of the abdomen, and from the latter by the multiarticulate antennae ; it, therefore, does not belong strictly to either family, but on account of the peduncle of the abdomen being inserted at a considerable elevation upon the metatho- rax. — a character which seems to be coufined to Evaniidse, — I place it, for the present, in that family. To Capitonim Brulle, it seems closely allied, in having the third discoidal cell not closed, and in the general shape of the body, but the prothorax does not form a long neck, and the antennae have double the number of joints. Anlacodes nigriventris, n. sp. Rufous, shining : abdomen black, the extreme base pale yellowish; antennas and legs, except base, dusky; wings hyaline. 10 [January Female. — Head very large, broader than the thorax, rufous, shining; face broad, slightly pubescent, feebly punctured ; mandibles dusky to- wards the tips; palpi dusky; antennae rather longer than the head and thorax, curled at tips, blackish, the basal joint yellowish. Thorax ru- fous, shining, slightly pubescent; lobes of the mesothorax prominent, uneven, and roughly punctured; pectus somewhat rugose; pleura smooth and polished; scutellum convex, polished; metathorax rugose, rather densely clothed with pale pubescence ; tegulae pale yellowish. Wings hyaline, faintly iridescent, a slight fuscous stain beneath the stigma ; nervures and stigma black. Legs rufo-fuscous, the tibiae and tarsi blackish. Abdomen rather short, ovate, depressed, polished, black, the first segment rapidly narrowed to the base, grooved along the lateral margins, with the basal half pale yellowish ; on the incisure between the 1st and 2nd segments, a rather large and deep fovea on each side of the middle, with a pale spot between the fovese ; ovipositor longer than the body, rufous, valves black. Length 3 lines; expanse of wings 4J lines. Collection. — Dr. J. Grundlach. Two specimens. Genus TRIGONALYS. Westwood. Trigonalys Gundlachii, n. sp. Black ; most of head, collar, front of mesothorax, both scutellums, two spots on metathorax, legs and the apical margins of the abdominal segments, yellow ; wings with the costal half fuscous, the rest hyaline. Male. — Black, slightly pubescent ; head densely and somewhat con- fluently punctured, shining; broad frontal orbits, the cheeks, a spot above the base of each antenna slightly confluent with the orbits, cly- peus, except its lateral margin which is black and slightly emarginate, and a large spot on each mandible, yellow; palpi pale dusky, blackish at base; antennae as long as the head and thorax, 25-joiuted, the basal joint very robust and bright yellow, the 13 or 14 following joints ful- vous, remainder blackish, the apex very slender. Thorax rugosely punctured, opaque; mesothorax with two deeply impressed longitudinal furrows, slightly converging on the scutellum ; collar, a large bilobed mark on each side of the prothorax bordering on the mesothorax and covering the tubercles, two rather large subtriangular spots on the me- sothorax anteriorly, slightly converging behind, each spot bordering on one of the longitudinal dorsal furrows, a minute spot on each extreme anterior corner of the mesothorax, and a small spot on each side of the pleura beneath the wings, all yellow; scutellum yellow, the space on each side black with a triangular yellow spot near the base of the wings; the postscutellum and its sidepieces also yellow; metathorax black, 1865.] 11 shining, finely punctured, with a rather large subquadrate yellow spot on each side posteriorly, above which there are several elevated longi- tudinal ridges, and on the extreme sides at base a well developed obtuse tubercle; teguke dull honey -yellow. Wings: the anterior pair mostly fusco-hyaline, especially the costal half, the apical posterior half and the posterior pair entirely hyaline, the whole with a brassy, subiride- scent gloss ; nervures fuscous, costa ferruginous ; second submarginal cell elongate, twice as long as wide, and connected with the first discoi- dal cell by a short petiole, third submarginal subquadrate, slightly longer than wide and receiving the second recurrent nervure beyond the middle. Legs, with their coxas, yellow ; the tarsi, especially the posterior pair, dusky. Abdomen polished, punctured; at the tip of the first seg- ment a transverse, subinterrupted, yellow line, and close to the apical margins of the four following segments a broad, transverse, yellow band, broadest on the second segment and slightly produced anteriorly on each extreme side, that on the third, fourth and fifth segments slightly produced and emarginate on the disk; venter polished black, the second segment with a conical, transverse yellow spot on each side posteriorly, tip of this segment somewhat acutely produced and deeply emarginate. Length 5 lines ; expanse of wings 9 lines. Collection. — Dr. J. Gundlach. One specimen. The general structure of this very interesting species is the same as given by Shuckard under the genus Lycogaster (Entomologist, p. 123 and figure), except that this species has the antennae 25-jointed, the mesothorax with only two longitudinal furrows, and the neuration of the anterior wings is somewhat different. The structure of the abdo- men is the same (and well represented in the figure in profile) except that the tip of the second ventral is differently constructed, being bifid, and not spinose. The specimen before me is apparently a male, and Westwood seems to think that the different structure of the ventral segments in the Lycogaster pullatm Shuckard, is a mere sexual differ- ence, it being nothing more than a "male of another species of Trlgo- naly.s." (Trans. Ent. Soc. Loud, iii, p. 274, note.) It gives me much pleasure to dedicate this elegant species to Dr. J. Gundlach, to whom I am greatly indebted for the valuable assistance he has rendered me in the study of the Hymenoptera of Cuba, by the loan of the uniques of his collection. 12 [January Fam. ICHNEUMON WJE. Subfarn. Ichneumonides. Genus ICHNEUMON, Linn. Ichneumon breviventris. n. sp. Black; antennae with a white annulus; palpi, legs and apex of abdomen, yel- lowish; wings hyaline; abdomen not longer than the thorax. Male. — Black, slightly pubescent; palpi pale yellowish; antennae two-thirds the length of the body, black, the 13th to 18th joints en- tirely white, the 12th and 19th to 21st joints with a white spot above and beneath. Thorax shining, rather sparsely and deeply punctured above, more densely so beneath ; scutellum rather convex and longitu- dinally rugose ; metathorax irregularly rugose, the elevated lines and central area obsolete ; tegulae rufo-piceous. Wings hyaline, faintly dusky at tips ; nervures and stigma black ; areolet 5-angular, almost quadrate, 2nd recurrent nervure slightly angular in the middle, and received by the areolet very near its tip. Legs dull yellowish, the coxae and the apical half of the posterior femora and tibiaj black, the posterior pair of legs very long. Abdomen short, ovate, not longer than the thorax, very densely and confluently punctured or somewhat longitudinally rugose, opaque black; basal segment with a short pedun- cle, the tips of the segment broadly and rather suddenly dilated, longi- tudinally aciculate and with two earinae down the middle, the extreme apical margin depressed ; second segment with the basal foveae deeply impressed, the incisures between the first, second and third segments strongly constricted ; remaining segments dull yellowish, rather sud- denly narrowed towards the tip, retractile, being capable of being drawn within the third segment; beneath, the segments are dull yellowish. Length 6 lines; expanse of wings 11 lines. Collection. — Dr. J. Gundlach. One specimen. This species is remarkable for its short abdomen, the fourth and fol- lowing segments of which are rather suddenly constricted and retrac- tile. Ichneumon meridionalis, n. sp. Black; antennte with a white annulus; wings fuscous; abdomen, except first segment, rufous; central area of metathorax large, subquadrate, indistinct. Female. — Black, slightly pubescent, densely punctured ; antennae about half as long as the body, black, the 9th to 16th joints white above, spotted with black beneath. Thorax very densely punctured, the mesothorax granulate; tegulae piceous, polished; scutellum slightly convex, rugose ; metathorax rugose, shining, the elevated lines subob- solete, the central area large, subquadrate and indistinct. Wings fus- cous, with a brassy gloss ; nervures and stigma blackish ; areolet large, 1865.] 13 5-angular or subquadrate, the lower apical side very short, the other sides subequal. Legs blackish-piceous, the anterior tibiae and tarsi yellowish in front. Abdomen elongate, subcylindric, densely punctured ; basal segment bilineated, deeply punctured, black; remaining segments rufous, shining towards the apex. Length 5j lines; expanse of wings 9 lines. Collection. — Ent. Soc. Philad. One specimen. Ichneumon cubensis, n. sp. Reddish-brown; antennae tricolored — ferruginous, yellowish and black; wings hyaline; central area of metathorax subquadrate; base of the 2nd and 3rd ab- dominal segments blackish. Female. — Robust, reddish-brown, opaque; clypeus and mouth pale ferruginous; antennae stout, involute, the eight basal joints ferruginous, the eleven or twelve following joints pale yellowish, remainder blackish, tinged with rufous beneath. Thorax with the dorsal lines well im- pressed in front, obsolete behind ; collar tinged with yellowish ; scutel- lum flat; metathorax finely rugose, the elevated lines tolerably well de- fined, the central area moderate, subquadrate ; tegulae honey-yellow. Wings hyaline, with a faint yellowish tinge; nervures fuscous, ferrugi- nous at base and towards the tip ; stigma ferruginous ; areolet subtri- angular. Legs reddish-brown, the two anterior pairs paler, the poste- rior tibiae and tarsi golden sericeous. Abdomen stout, elongate-ovate, the basal segment strongly arcuated, with a rather long, stout peduncle, the tip moderately dilated, finely punctured and slightly bilineated; basal margins of the second and third segments blackish, and that of the fourth indistinctly so ; ovipositor not exserted. Length 7 lines ; expanse of wings 11} lines. Collection. — Dr. J. Guudlach. One specimen. Ichneumon serricornis, n. sp. Black; face, annulus on antennas, two lines on mesothorax, large spot on pleura, scutellum, three marks on metathorax, coxa? and apex of abdomen whitish; legs and abdomen ferruginous: wings yellowish-hyaline; antenna} subserrate. Male. — Head black; the face, orbits, cheeks, clypeus, except a black stripe down its middle, mandibles and palpi, whitish; antennae porrect, two-thirds as long as the body, subserrate, black, the 13th to 19th joints white, the basal joint beneath also white. Thorax black; mesothorax tinged with brown and having two approximate longitudinal, subobso- lete whitish lines on the disk, and a small subobsolete pale spot on each side over the tegulae; collar, tegulae, a sutural line before the wings, a short line beneath the fore-wing and a large spot occupying almost the whole side of the pleura, whitish ; the space beneath between the four 14 [January anterior coxae, ferruginous; scutellum, a spot on each side anteriorly and another behind, whitish; metathorax finely rugose, black, rufous at base, an inverted V-shaped mark on the posterior face and a large rounded spot on each extreme side, whitish, the elevated lines not well defined, the central area large, rounded in front and open behind. Wings yellowish-hyaline, the nervures and stigma blackish ; areolet subtrian- gular. Legs ferruginous, the four anterior coxa? beneath and the pos- terior pair above whitish; posterior tarsi blackish. Abdomen elongate, subdepressed, opaque ferruginous, the apical lateral margins of the 3rd and three following segments and the apical segment entirely, whitish ; basal foveae of the second segment deep and transverse. Length 5 A lines; expanse of wings 8} lines. Collection. — Ent. Soc. Philad. One specimen. Ichneumon albipectus, Brulle. Ichneumon albipectus, Brulle, Hym. p. 306. Collection. — Ent. Soc. Philad. Two £ specimens. Somewhat resembles the preceding, but is smaller (3? lines long), darker in color, the antennae without a white annulus, and the apex of the abdomen not white. In addition to the characters given by Brulle, I would add that the metathorax has the appearance of having two pale spots on the posterior part, and the apical margin of the first abdominal segment is whitish. Ichneumon burrus, n. sp. Dull reddish-brown; orbits, annulus on antennae, lateral margins of mesotho- rax and the scutellum, whitish ; wings subhyaline. Female. — Dull reddish-brown, shining ; orbits, cheeks and palpi, whitish ; antennas stout, involute, blackish, the 10th to 17th joints white, the basal joint beneath reddish. Thorax: mesothorax tinged with blackish ; collar, lateral and posterior margins of mesothorax and a short line beneath the fore-wings, whitish; scutellum flat, whitish, smooth and polished ; metathorax rugose, the elevated lines not well defined, the central area elongate-subepaadrate. Wings slightly tinged with fuscous, the posterior pair hyaline; nervures and stigma fuscous; areolet 5-angular. Legs entirely dull reddish-brown. Abdomen short, ovate, polished, apical segments somewhat pale. Length 4 lines; ex- panse of wings 6 lines. Collection. — Ent. Soc. Philad. One specimen. This may be the female of Ich. albipectus Brulle. Ichneumon flavovarius, n. sp. Yellow; antennae, mesothorax, except two yellow lines, and tip of abdomen, brown ; middle of metathorax, most of the 1st and base of 2nd and 3rd abdomi- nal segments, black; wings yellowish-hyaline. 1865.] 15 Male. — Head yellow, a spot behind antennae and a broad transverse band on the occiput, brown; eyes black; antennae three-fourths the length of the body, brown, paler beneath, basal joint beneath yellow. Thorax yellow, shining; mesothorax brown, with two longitudinal, dorsal, yellow lines, slightly converging on the scutellum ; an elongate spot on each side of the pectus towards the mesothorax, a disconnected line and a spot on the pectus under the wings, blackish; scutellum and postscutelluni, as well as the posterior margin of the mesothorax, yel- low, the space on each side brown ; metathorax finely rugose, yellow, with the base, a broad stripe down the middle, a large spot on each side at base and the lateral sutures, black, the elevated lines not well defined, the central area moderate, subovate. Wings pale yellowish- hyaline ; uervures fuscous, stigma ferruginous ; areolet 5-angular. Legs yellow, the posterior pair tinged with fulvous, their tibiae and tarsi slightly obfuscated. Abdomen elongate, depressed; first segment with a long, slender peduncle, the tip suddenly and squarely dilated, with two elevated ridges on the disk ; basal foveae of the second segment oblique and well impressed ; basal segment black, extreme tip yellow ; second segment black, the apical third yellow ; third segment yellow, the basal third black ; remaining segments brown, tinged with ferrugi- nous. Length 7 lines ; expanse of wings 12 lines. Collection. — Ent. Soc. Philad. One specimen. Genus MESOLEPTUS, Grav. Mesoleptus insularis, n. sp. Black ; spot on mandibles, palpi, tegulse, legs, and middle of abdomen ob- scurely, yellowish or testaceous ; wings hyaline, iridescent. % 9 . — Black, opaque, slightly pubescent, more obvious on the face; spot on each mandible, and the palpi, yellowish ; antennae nearly as long as the body, rufo-piceous; tegulae yellow; metathorax finely sculp- tured, slightly rugose, the elevated lines ill-defined. Wings hyaline, iridescent; nervures and stigma pale fuscous; areolet minute, oblique and petiolated. Legs testaceous, the coxae black, the trochanters pale yellowish, the posterior tibia; and tarsi dusky, the former with an indis- tinct pale annulus. Abdomen elongate, very slender at base, gradually broader and subcom pressed towards the tip, black, tinged with fuscous; sides of 2nd, 3rd and sometimes the 4th segments obscurely testaceous; ovipositor of 9 exserted about half a line. Length li line; expanse of wings 2 2 lines. Collection. — Ent. Soc. Philad. 2 ( % $ ) specimens. 1<» [Januart Genus TRYPHON, Grav. Tryphon cinctus, n. sp. Black ; face, orbits, annulus an antenna?, collar, two stripes on mesothorax, most of pleura, scutellum, sides, tip and two spots at base of metathorax, and bands on abdomen, white; legs fulvous, hind tarsi black with a white annulus: wings hyaline. Male — Black, densely and uniformly punctured ; face, except a black spot just behind the antennae, orbits, clypeus, mandibles, except tips, and the palpi, white; antennae rather longer than the body, attenuated towards the tips, which are very slender, black, with a white annulus slightly beyond the middle, basal joint beneath white. Thorax : meso- thorax with two broad longitudinal whitish stripes, triangularly dilated in front, and attenuated in the middle; the collar, tegulae, a small spot before and a larger one beneath the anterior wings, a spot behind the posterior wings, and the pleura, except the sutures dividing it from the pectus and metathorax, white; scutellum rather large and transverse, entirely white, as well as a transverse line on the postscutellum ; me- tathorax densely and confidently punctured, black, a large spot occu- pying the extreme sides, a transverse band near the insertion of the abdomen, and a spot on each side at base, white. Wings hyaline, slightly iridescent ; nervures and stigma black ; areolet minute, petio- lated, oblique. Legs long and rather slender, pale fulvous, all the coxae white, the posterior pair with an exterior black longitudinal line; pos- terior tarsi black, the 2nd and 3rd joints white, tips of the other tarsi Idackish. Abdomen sessile, subcylindrical, about as long as the head and thorax, densely punctured, black, the base of the first and the api- cal margins of all the segments, broadly white; upper surface of the basal segment uneven, with a small blunt tubercle on each side of the middle. Length ±\ lines; expanse of wings 7 lines. Collection. — Or. J. Grundlach. One specimen. Tryphon 1 exiguus, n. sp. Piceous; face, legs, and middle of abdomen, yellowish; meso- and metathorax stained with brown; wings hyaline, iridescent, areolet incomplete; abdomen sessile. Female. — Head black, face slightly protuberant, yellow, as well as the clypeus, mandibles, except tips, and the palpi ; antennae rather slender, more than half the length of the body, fuscous, yellow at base. Thorax piceous. polished ; mesothorax brown, as well as the scutellum and dorsal surface of the metathorax; scutellum rather convex; meta- thorax polished, the elevated lines obsolete on the disk, distinct on the sides; tegulae yellowish. Wings hyaline, iridescent; nervures and stigma pale fuscous, the latter rather large; areolet small, incomplete, the outer nervure wanting, the marginal cell short and subtriangular. 1865.] 17 Legs moderate, yellow, including their coxae; the posterior tarsi dusky. Abdomen blackish-piceous, sessile, subcompressed at tip ; apical margin of the 2nd and the basal half of the 3rd segment yellowish, the rest more or less tinged with piceous; ovipositor scarcely exserted. Length lj line; expanse of wings 2 \ lines. Collection. — Dr. J. Griindlach. One specimen. Tryphon? claviventris, n. sp. Blackish; mouth, antennre, sides of mesothorax, tegulte, seutellum, most of metathorax and legs, and two bands on abdomen, yellow ; wings fusco-hyaline, areolet wanting; legs short and thick; abdomen strongly clavate. Male. — Blackish, shining, thinly clothed with a short pale pubescence; head small, eyes large and prominent; anterior margin of the clypeus, mandibles and the palpi, yellow ; antennae three-fourths the length of the body, stout, dusky yellow, brownish above especially towards the apex, basal joint beneath yellow. Thorax smooth and polished; collar, tegulae, lateral margins of the mesothorax, dilated anteriorly and ex- tending posteriorly to the seutellum, the broad anterior and upper mar- gins of the pectus bordering on the mesothorax, and a line beneath the wings, yellow ; pectus polished and broadly excavated to receive the fore-legs in repose; the pleura has posteriorly a similar excavation for the middle legs; seutellum rather large and yellow, as well as the space on each side and the postscutellum ; metathorax not prominent, sub- convex, smooth and polished, yellow, except its base and extreme sides. Wings ample, fusco-hyaline, tinged with yellowish and having a slight brassy gloss, tbe apical margins especially about the tip of the marginal cell more deeply tinged with fuscous; nervures pale fuscous, the stigma and costa fulvous; areolet wanting. Legs short and thick, especially the femora, yellow ; the anterior femora with a large round black spot behind, the middle femora blackish with the base and apex yellow, pos- terior cox33 black, yellow behind, their trochanters yellow, their femora blackish, piceous above and at base and apex, basal half of their tibiae yellow, the apical half and the tarsi brownish. Abdomen elongate, strongly clavate, slender at base, subpetiolated, subdepressed, reddish- brown, the basal segment black with a yellow band across the tip, as well as another on the second segment occupying its apical half. Length 5 lines ; expanse of wings 8 lines. Collection. — Dr. J. Grundlach. One specimen. This species looks very much like an Exochus, but the face is flat; it probably does not belong to Tryphon, but in the absence of a more allied genus, as far as known to me, I refer it for the present to that genus. 18 [January Genus EXOCHUS. Grav. Exochus validus. n. sp. Reddish-brown, varied with yellow; wings yellowish-hyaline, areolet want- ing; abdomen subsessile. with three yellow bands. Male. — Head yellow, the occiput reddish-brown ; antennae two-thirds the length of the body, pale honey-yellow, slightly blackish at extreme tips. Thorax flattened above, clothed with a thin, short, pale pube- scence; mesothorax yellowish, with a broad black stripe down the mid- dle and a narrow abbreviated one on each side; the broad upper margins of the pectus bordering on the mesothorax, two large tubercles in front of the anterior coxa?, and the tegulae, yellow; on each side of the pleura, immediately beneath the fore-wings, there is a large prominent yellow swelling; scutelluni and post-scutellum, as well as the space on each side more obscurely, yellow ; metathorax yellow, with a blackish im- pressed line down the middle. Wings ample, yellowish-hyaline, with a slight cloud at the tip of the marginal cell ; nervures and stigma pale ferruginous ; areolet wanting. Legs yellow, the four anterior femora honey-yellow, the posterior pair reddish-brown. Abdomen subsessile. subclavate, shining, reddish-brown, with a rather broad yellowish band across the tip of the three basal segments above, that on the second and third occupying their apical half. Length \\ lines; expanse of wings 9 lines. Collection. — Ent. Soc. Philad. Two % specimens. Genus TROGTJS. Grav. Trogus thoracicus. n. sp. Yellowish-ferruginous ; three broad lines on the mesothorax and a large stain on each side of the pleura, blackish; wings yellowish-hyaline, glossy: abdomen depressed. Male. — Yellowish-ferruginous, rather densely punctured, clothed with a short pale pubescence; orbits of the eyes obscure whitish, and just beneath the antennas the face has a brownish spot; antennae more than half the length of the body, pale ferruginous. Thorax shining; meso- thorax with two dorsal grooves converging on the scutelluni, between the grooves a broad longitudinal blackish stripe, pointed behind and not reaching the scutellum, on each side over the base of the wings another broad blackish stripe which extends to the posterior margin ; middle of the pectus, a large irregular stain on the pleura, the surface beneath between the four anterior legs, and a spot on the extreme an- terior lateral corner of the metathorax, blackish ; scutellum obtusely elevated, shining; metathorax prominent, transverse, convex at the base, immediately beneath the scutellum there is a blackish transverse incisure. Wings yellowish-hyaline, the extreme apical margins dusky; 1865.] 19 nervures fuscous, stigma fulvous; areolet subtriangular, slightly oblique. Legs same color as the body, the posterior coxae beneath and their fe- mora and tibiae more or less obfuscated. Abdomen opaque, depressed, deeply incised between the segments; basal segment squarely dilated at tip, with a prominent tubercle on each side of the posterior third, the. peduncle slender ; down the centre of each segment there is a slight elevation. Length 6} lines; expanse of wings 13 lines. Collection — Dr. J. Gundlach. One specimen. Trogus pusillus. n. sp. Black; face, orbits, annulus on antennse, collar, two lines on mesothorax, pleura beneath, sides of scutellum and most of metathorax, white; legs and ab- domen honey-yellow ; wings hyaline ; scutellum acutely elevated. Male. — Head rather large, black; the face, orbits, clypeus, mandi- bles, except tips, and the palpi, whitish; the outer orbits cover the cheeks on the lower half, but narrow as they approach the summit, and instead of curving around to meet the frontal orbits, they continue straight on the vertex and almost meet on the disk behind the ocelli ; antennae nearly as long as the body, slender, porrect, black, with a broad white annulus slightly beyond the middle. Thorax black, shining ; mesothorax with two longitudinal white lines not reaching the scutel- lum, in front the space between these two lines is tinged with rufous; the collar, tegulae, a broad line before and a large spot beneath the wings, connected with another very large spot which covers the entire under surface of the pleura, all white ; scutellum elevated into a sub- acute spine, black, its sides broadly white, as well as the carina on each side anteriorly with which it is connected; postscutellum black; meta- thorax obscure whitish, with a large subtriangular black spot on each side, the surface is densely punctured and somewhat abruptly truncate behind. Wings obscurely hyaline; nervures and stigma blackish, paler at base ; areolet 5-angular. Legs rather slender, honey-yellow ; the four anterior coxae, white. Abdomen elongate, depressed, smooth and shining, honey-yellow; first segment with a prominent tubercle on each side of the posterior third, the peduncle rather slender; basal foveae of the second segment deep and transverse. Length ?>\ lines; expanse of wings 5s lines. Collection — Dr. J. Grundlach. One specimen. This looks very much like an Ichneumon, and I would have described it under that genus, were it not for the elevated scutellum. Trogus tricinctus. n. sp Yellow, varied with brown and ferruginous; mesothorax with three brown stripes; metathorax with two large triangular yellowish spots; abdomen with three yellow bands: wings yellowish-hyaline. 20 [January Female. — Head yellow, face whitish ; a broad transverse stripe on the occiput and a spot just behind the antennae, brownish ; eyes whitish; antennae ferruginous (apical half wanting), basal joint beneath yellow. Thorax yellow ; mesothorax with three broad, longitudinal, brown stripes; suture between the pectus and pleura, as well as a short oblique stripe on the pleura, brown ; scutelluni elevated into an obtuse tubercle, yellow, with a brown, triangular spot behind ; postscutellum brown, yellow on each side; nietathorax smooth and shining, slightly pubescent, brown, with two large, elongate subtriangular, yellow spots above, slightly confluent at the base, and on each extreme side another large yellow spot; tegulae brownish. Wings yellowish-hyaline, nervures fuscous, stigma fulvous; areolet small, subtriangular, slightly petiolated. Legs pale yellowish, somewhat tinged with ferruginous; posterior coxae with a blackish spot at tip, their femora rufous, and the apical half of their tibiae and their tarsi, except basal joint, brown. Abdomen flat- tened, the dorsal surface finely and longitudinally aciculate from the second segment almost to the tip; two basal segments brown, remainder ferruginous, and at the tip of the first three segments a broad yellow band, slightly narrowed in the middle on the second and third segments ; ovipositor scarcely exserted. Length 6 lines; expanse of wings 11 2 lines. Collection. — Ent. Soc. Philad. One specimen. Trogus albovarius, n. sp. Black, varied with white : antennae black, with a white annulus ; legs ful- vous; wing.- hyaline; abdomen short, black, banded with white. Female. — Head large, black; face, orbits, cheeks, clypeus, mandibles, except tips, and the palpi, white; antennae black, with a white annulus about the middle. Thorax polished, black; collar, tegulae, a line before the wings, two lines on disk of mesothorax. and two spots at its base on each side of scutellum. and the whole of the pectus, white; scutelluni elevated into an obtuse tubercle, white, with a black line down the middle; postscutellum with a white transverse line; nietathorax punc- tured, white, with a transverse black band near the base, from which proceeds on each side a longitudinal black stripe. Wings hyaline ; nervures and stigma black ; areolet 5-angular or subtriangular. Legs rather stout, pale fulvous; the four anterior coxae and most of the pos- terior pair, white ; apical joints of the posterior tarsi also white. Ab- domen short, ovate, subdepressed, polished, peduncle long and very slender, tip of first segment broadly dilated, basal foveae of the second segment rather deep and very transverse ; first segment white, with a broad black band near the tip ; second segment black, with a broad 1865.] 21 white apical margin, and a white line on each side in front of the basal foveae ; remaining segments white, more or less black at the base, ovi- positor black, subexserted. Length 4$ lines; expanse of wings 9 lines. Collection. — Ent. Soc. Philad. One specimen. Genus CRYPTUS. Fab. Cryptus cubensis, n. sp. Yellowish, shaded with dusky ; sides of mesothorax, base of metathorax, hind legs in part and the three basal segments of abdomen, black ; wings yellowish- hyaline. Female. — Dull yellowish, opaque ; antennas rather stout, more than half the length of the body, dusky above, with a broad dull yellowish annulus about the middle. Thorax : sides of mesothorax rather broadly black, the disk with an elongate dusky stain anteriorly; pleura varied with yellowish and black; metathorax with a transverse carina near the base, on each side there is a longitudinal impressed line, and the poste- rior face is somewhat concave, with a slight tubercle on each side; basal half black, the rest yellowish. Wings yellowish-hyaline, the apical margins slightly dusky ; nervures and stigma ferruginous ; areolet 5- angular, or subquadrangular. Legs long and slender, especially the posterior pair, yellow; the posterior coxae black, with a yellow hook-like mark above and a line beneath of the same color, their trochanters black, their femora with a broad black band near the tip, and their tibire and tarsi black at tips. Abdomen elongate, subcompressed, and fusi- form, long, slender at base; the first segment linear and convex, with a slight tubercle on each side a little behind the middle, black, its tip yellow; second and third segments black at base, dusky in the middle and yellow at tip; remaining segments dusky, yellow at tip; ovipositor piceous, exserted about half the length of the abdomen. Length 6 — 71 lines; expanse of wings 10 — IB lines. Male. — Resembles the female, except that the abdomen is more slen- der and the base of the fourth and fifth segments are narrowly blackish. Length 8 $ lines. Collect Ion. — Ent. Soc. Philad. 2 % , 2 9 specimens. This species is parasitic upon the larva of Pelopceus hinatus Fab. Cryptus fascipennis. Brulle. Cryptus fascipennis, Brulle, Hym. p. 191. Collection. — Ent. Soc. Philad. 2 % , 2 9 specimens. Cryptus ? ornatipennis. n. sp. Dark rufous ; antennae black ; orbits, collar, spots on pleura, spot on scutellum, and another on each side of metathorax, white; abdomen rufous at base and apex, black in the middle; wings hyaline, banded with fuscous. Female. — Dark rufous, opaque; orbits white, tips of mandibles black. •)'7 [January eyes large and prominent ; antennae rather longer than the body, slen- der, black, the basal joint beneath rufous. Thorax with the dorsal lines well impressed ; the collar, tegulae, a cuneiform spot before and a spot Fig. 4. beneath the fore-wings, an elongate spot beneath the hind-wings and another immediately beneath it, white ; scutellum black, with a broad white band near the tip; metathorax large, rather long. rufous, with a fine, transverse, slightly arcuated carina near the base and an elongate, white spot on each extreme side. Wings long, hya- line, with three fuscous bands towards the apex, the two apical ones confluent below ; nervures and stigma black ; marginal cell long and narrow ; areolet large, subtriangular and very transverse (see Fig. 4). Legs long and rather slender, rufous, the anterior coxas white, the four posterior pair with a white spot above. Abdomen elongate, fusiform, subpetiolated, strongly arcuated, shining; the two basal and two apical segments dark rufous, remaining segments black above, rufuus laterally, between each segment there is a whitish membrane as if the segments were distended, and giving the appearance of whitish marginal bands; beneath rufous; ovipositor rufous, nearly as long as the abdomen, valves black. Length 5 lines; expanse of wings 9 J lines. Collection. — Ent. Soc. Philad. One specimen. This species has much the general appearance of a Cryptus, but the wings are differently veined, and the abdomen is subpetiolated, though strongly arcuated. The veining of the wings is different from that of* any genus known to me. Genus HEMITELES, Grav. Hemiteles incertus, n. sp. Rufous: antennae and abdomen black, the latter banded with white ; meta- thorax with two long acute white spines; wings clouded, iridescent. Female. — Dull rufous, opaque; eyes large and prominent; orbits and mandibles whitish; palpi dusky; antenna? as long as the body, black, the basal joint beneath rufous. Thorax: mesothorax with the dorsal lines deeply impressed; a line on the collar, tegulae, a line beneath the auterior wing, a spot behind the posterior wing, an oblique line on the pleura and a spot before and a little above each middle coxa, all white ; metathorax finely rugose, smoother at base, the elevated lines not well defined ; on each side posteriorly a rather large white spot, from each of which proceeds a long, porrect, acute spine. Wings: anterior pair fuscous, with a beautiful golden gloss; posterior pair hyaline, iridescent, their apical margins faintly clouded ; nervures and stigma black ; on the anterior pair there is a subhyaline ray in the first submarginal cell 1SG5.1 23 proceeding from the base of the stigma. Legs rufous, the four anterior coxte with a white spot. Abdomen stout, subovate, very slender at base, and strongly arcuated, shining ; basal segment rufous, sometimes blackish, with a white band at tip'; remaining segments black, broadly margined at tip with white, the apical segments not so broadly margined as the others ; ovipositor black, exserted two-thirds the length of the abdomen. Length 4'. lines; expanse of wings 8 lines. Male — Smaller, and much more slender than the female, and differs in color as follows : — the superior wings are hyaline, with the apical third fuscous, as well as a spot at the lower base of the first submarginal cell ; the scutellum has a white spot, as well as one on the postscutellum; the metatborax is not spinose, the white spots being scarcely elevated, and the four anterior coxte are entirely white. Length 3 — 4 lines; expanse of wings 5 — 7 lines. Collect ion. — Ent. Soc. Philad. 2 S , 1 9 , specimens. This species answers in some respects to the description given of H. fuscipennis Brulle, from Hayti, but I am uncertain of their identity. It may be only a variety of that species. Prof. Poey informs me that this species devours the chrysalis of his Pi/ rails Jleg 'talis. Hemiteles amcenus, n. sp. Kufous; antennae and abdomen black, banded with white; face, orbits, two spots behind the wings, two spots on. the metatborax and the legs in part, whitish ; wings hyaline Female. — Rufous, opaque ; face, orbits and mouth, white ; antennae as lung as the body, black, with a broad white annulus beyond the middle. Thorax with the dorsal lines well impressed ; on each side behind the posterior wings, a rather large, rounded, white spot; meta- tborax with a slight, transverse carina near the base, and on each side posteriorly a small white spot, elevated into a subacute tubercle. Wings hyaline, slightly dusky towards the tip, iridescent; nervures and stigma fuscous. Legs slender, dusky, whitish beneath ; coxae whitish, the posterior pair with a black line on the outside and a spot at tip on the inside ; the four posterior tarsi black, with a broad white band on the middle; posterior tibiae brownish. Abdomen subovate, slender at base, shining; basal segment rufous, white at tip; second segment black, tinged with piceous at base; third segment white, blackish on the mid- dle at base; fourth and two following segments black, the fourth white on each side at base; remaining segments white; ovipositor rufous, scarcely half the length of the abdomen. Length 3] lines; expanse of wings 5 lines. Collection. — Dr. J. Glundlach. One specimen. 24 [January Hemiteles bicinctus, n. sp. Rufous; abdomen black, rufous at tip, two first segments banded with white: orbits, collar, line on pleura and four anterior eoxre, white; metathorax with two white tubercles ; wings fusco-hyaline. Female. — Rufous, opaque; orbits and mouth whitish; antennae nearly as long as the body, black, basal joint beneath rufous. Thorax: collar, and an oblique line on each side of the pleura, white; metathorax with a slight, transverse carina near the base, and on each side posteriorly a white, obtuse tubercle, well developed. Wings fusco-hyaline, with a bright golden gloss ; posterior pair hyaline ; nervures and stigma black. Legs rufous, the four anterior coxae white. Abdomen stout, subovate, shining, very slender at base, strongly arcuated; first and se- cond segments black, with a broad white band at the tip of each; third segment also black, margined at tip with rufous; remaining segments rufous; ovipositor rufous, more than half the length of the abdomen. Length 21 lines; expanse of wings 4 lines. Collection. — Dr. J. Gundlach. One specimen. Hemiteles thoracicus, n. sp. Brown; head and thorax clay-yellow; abdomen with a purple iridescence: wings banded with fuscous. Female. — Head rather large, clay-yellow ; antennae slender, as long as the body, pale testaceous. Thorax: mesothorax clay-yellow, the dorsal lines deeply impressed ; collar and tegulae clay-yellow ; pleura, scutellum and metathorax brown, the latter with a slight white pube- scence, and two subobsolete pale spots at base. Wings hyaline, with a broad fuscous band towards the tip, covering the stigma, and a nar- rower one at the base of the first submarginal cell; nervures and stigma fuscous, the latter large. Legs brown, the four anterior pair paler ; posterior tibiae whitish at base. Abdomen ovate, rather stout, arcuated, brown, polished, with a slight purplish iridescence; apical margins of the segments somewhat pale; ovipositor brown, scarcely half the length of the abdomen. Length 2 lines ; expanse of wings 4 lines. Collection. — Dr. J. (rundlach. One specimen. Hemiteles subflavescens. n. sp. Pale honey-yellow; abdomen black, banded with white; orbits, spots on tho- rax, two spots on metathorax, and the four anterior coxce, white; wings hya- line, iridescent. Male. — Pale honey-yellow, shining ; orbits, clypeus and palpi, whitish ; antennae two-thirds the length of the body, black, yellowish at base. Thorax: collar, tegulae, a line beneath the anterior wings, a spot behind the posterior wings, and a spot on the pleura, white; scutellum with a white spot, as well as another on the postscutellum; metathorax with a 1865.] 25 rather large white spot on each side behind. Wings hyaline, beautifully iridescent; nervures and stigma fuscous. Legs pale honey-yellow, the four anterior coxae white. Abdomen elongate, slender, black or brown- black, base of the first segment yellowish, and the apical margins of all the segments white. Length 2| lines; expanse of wings 4t\ lines. Collection. — Ent. Soc. Philad. One specimen. Genus ISCHNOCERUS. Grav. Ischnocerus abdominalis. n. sp. Black: orbits, spot on clypeus, annulus on antennae, collar, tegulse and seu- tellum, white: abdomen and legs rufous: wings hyaline. Female. — Black; the orbits and a spot on the clypeus, white; an- tennae two-thirds the length of the body, black, the 7th to 11th joints white. Thorax with two well impressed dorsal lines; collar, two short lines on the disk of the mesothorax, tegulae, a sutural line before and a short line beneath the wings, white ; scutellum polished, white ; meta- thorax finely sculptured, the elevated lines scarcely defined. Wings hyaline, faintly clouded at the apex ; nervures and stigma blackish ; areolet wanting, or subobsoletely incomplete, the 2nd recurrent uervure very straight. Legs, with their coxae, rufous ; the posterior tibiae and tarsi blackish ; tibial spurs whitish. Abdomen robust, elongate-sub- ovate, convex, petiolated, arcuated, shining, rufous; first segment square towards the tip ; base of the second and third segments obfuscated ; ovipositor rufous, rather more than half the leugth of the abdomen. Length 5 lines ; expanse of wings 8 lines. Collection. — Dr. J. Grundlach. One specimen. Genus MESOSTENUS, Grav. Mesostenus robustus, n. sp. Black; antennae with a white annulus; face, orbits, collar, spot on disk of mesothorax, tegulae, line before and beneath the wings, most of pleura, scutel- lum, 4 lines on metathorax, legs and apical margins of abdominal segments, pale yellowish; wings hyaline; mesothorax with two stout, subacute spines. Female. — Very robust, opaque ; head black, face, orbits, cheeks, and palpi, dirty whitish ; an obtuse tubercle on the middle of the face, the clypeus, labrum and a spot at base of mandibles, more whitish ; lateral sutures of the clypeus and the apical half of the mandibles, black ; antennae as long as the body, slightly thickened near the tip, black, with a broad white annulus beyond the middle, basal joint be- neath with a white line. Thorax black ; mesothorax punctured, the dorsal lines deeply impressed, middle lobe with a large yellowish spot at tip, the lateral margins also narrowly yellowish for half their length towards the front, lateral pieces margined laterally with yellowish ; the carinae leading to the scutellum also yellowish ; the collar, upper mar- 26 [January gins of the pectus bordering on the mesothorax, a large oblique stripe on the pleura connected behind with a large spot in front of each mid- dle coxa, all pale yellowish ; pleura and pectus finely aciculate ; scu- tellum and postscutelluin. yellowish, the space on each side black, mar- gined posterior with yellowish ; metathorax rugosely punctured, its posteriorly face transversely aciculate. with a stout, rather long, some- what flattened, subobtuse, white spine on each side ; black, with a broad longitudinal stripe on each extreme side, and on the posterior face two longitudinal stripes, curved inward at tip and running down inside of the spines to the base and covering the spines, white ; on each side just behind the posterior wings a large yellow spot. Wings hyaline, nervures and stigma blackish, the latter with a pale dot near the base. Legs yellow, the femora tinged with honey-yellow; posterior coxae with a black stripe on the outside. Abdomen robust, the base strongly ar- cuated; first segment smooth and polished, yellowish, with the sides and a large spot near the tip, black; second segment whitish, with a broad black band at base, the basal and apical margins honey-yellow ; remaining ses-ments whitish, more or less black at base ; none of the CO / black bands touch the lateral margins of the segments; ovipositor piceous-black, two-thirds the length of the abdomen. Length 6j lines ; expanse of wings 12 lines. Collection. — Dr. J. Gundlach. One specimen. Mesostenus strenuus. n. sp. Black: middle of face, orbits, annulus on antennae, collar, spot on mesothorax, spot on pleura, scutellum, two lines and two spots on metathorax, legs, and bands on the abdomen, white or yellowish; wings hyaline; metathorax with two spines. Male. — Head black ; middle of the face, orbits, clypeus, mandibles, except tips, and the palpi, whitish; antennae as long as the body, black, with a white annulus beyond the middle. Thorax black, shining; mesothorax sparsely and deeply punctured, the dorsal lines deeply im- pressed, at the tip of the middle lobe a round white spot, and on the inner margin of the side-pieces near the front a short whitish line; pectus and pleura longitudinally striated ; the collar, tegulae, a line be- fore and a spot beneath the anterior wings, a large spot on the pleura, and another behind the posterior wings, all whitish ; scutellum white, black at base, the carinas in front connecting with the mesothorax, as well as the postscutelluin, white, the space on each side black, margined posteriorly with white ; metathorax black, transversely rugose, with a well defined transverse carina near the base, and on each side behind a rather long, well developed, somewhat flattened, subacute spine, on 1865.] '11 the middle of the posterior face two longitudinal whitish lines com- mencing at the transverse carina, their anterior half narrow, their pos- terior half suddenly dilated and covering the spines, and on each ex- treme side posteriorly a whitish spot. Wings hyaline, slightly smoky at extreme tips, nervures and stigma blackish. Legs long, rather slender, pale honey-yellow, including the coxae ; posterior femora at tip above, apical two-thirds of their tibiae, and the tips of all the tarsi, black ; the coxae and femora more deeply colored than the remainder of the legs. Abdomen rather short, fusiform, slightly compressed at tip, polished ; basal segment longer than the second, white, with a broad black band near the tip ; remaining segments black, rather broadly margined at tip with white. Length 62 lines; expanse of wings 11 2 lines. Collection. — Dr. J. Grundlach. One specimen. This may be the male of M. robuxtus ; the hind legs are, however, differently colored and the thorax somewhat diiferently marked. Mesostenus tarsatus, n. sp. Black ; mesothorax brown ; face, orbits, annulus on antennae, spot on meso- thorax, most of pectus and pleura, scutellum, posterior face and sides of meta- thorax, four anterior coxae, and apical margins of abdominal segments, white; legs fulvous, hind tarsi black with a broad white annulus; wings hyaline, iri- descent; metathorax not spinose. Female. — Head white; abroad brownish, longitudinal band extend- ing posteriorly, from the base of the antennae, covering the ocelli and spreading on the occiput; most of mandibles and a spot above their base, black ; eyes large and prominent, brown ; antennae slender, as long as the body, black, with a broad white annulus beyond the middle, and the basal joint beneath with a white line. Thorax : mesothorax mi- nutely punctured, reddish-brown, with a rounded white spot on the disk, the dorsal lines well impressed; pectus dark brown, with a large white spot above each anterior coxa; pleura very finely aciculate, white on the sides and beneath, the anterior and posterior margins blackish ; tegulae, a line before and a spot beneath the anterior wing and a large spot behind the posterior wing, white ; scutellum and postscutellum white, the space on each side black ; metathorax without spines, brown- ish or reddish-brown, its posterior face entirely and its sides, white, on the middle a well defined, transverse carina, and just behind it on the declivity another transverse carina which is slightly prominent on each side where the spines are generally situated, between these two carina 1 , the surface is longitudinally aciculate, the remainder of the posterior face is transversely aciculate, in front of the first carina the surface is finely punctured and almost smooth. Wings hyaline, iridescent, faintly 28 [January tinged with dusky ; nervures blackish, stigma brown. Legs fulvous or bright yellow ; tbe four anterior coxae and a spot above at the base of the posterior coxae, white ; posterior tarsi black, with a broad white annulus near the tip ; tips of the other tarsi also black. Abdomen stout, oblong-ovate, black, the apical margins of all the segments more or less broadly white ; ovipositor piceous-black, as long as the abdomen, valves black. Length 5f lines; expanse of wings 10 j lines. Collection. — Ent. Soc. Philad. Two specimens examined. Easily distinguished from the other species of this genus by the an- nulated hind tarsi. Mesostenus lituratus. Brulle. Mesostenus lituratus, Brulle, Hym. p. 208. Collection. — Ent. Soc. Philad. Two 9 > one £ > specimens. This species is distinguished by the metathorax having two white spots at base, caused by having its basal margin black as well as a cen- tral longitudinal and a central transverse line, thus dividing the dorsal surface into four white spots, of which the basal ones are rounded and the posterior ones elongate, covering the spines, which are long and subacute; the second abdominal segment has also a white spot on each side. Mesostenus zonatus. n. sp. Black; face, orbits, broad annulus on antennae, lines on mesothorax, most of pleura and metathorax. scutellum, and bands on abdomen, white ; legs fulvous, posterior tarsi white, black at base: wings hyaline; metathorax not spinose. Female. — Head black ; the face, orbits, very broad on the cheeks, clypeus, mandibles and palpi, whitish ; antennae slender, as long as the body, black, with a very broad white annulus beyond the middle, the basal joint beneath also white. Thorax black ; mesothorax smooth, with two dorsal, longitudinal lines, becoming confluent on the disk and forming a large spot, white ; pectus and pleura whitish, the suture be- tween them broadly black, and somewhat striated, the suture between the pleura and metathorax, also black ; the scutellum, the carina on each side anteriorly, tegulae, and the space immediately in front of the metathorax, broad behind the wings, whitish ; metathorax whitish, the base in front of the transverse carina; a longitudinal line on each side extending posteriorly, curving outwardly at tip and ending in' a spot, and a rather large, rounded spot just above the insertion of abdomen, black, posterior face transversely aciculate. Wings hyaline, slightly iridescent; nervures fuscous, stigma brown, with a pale spot at base. Legs pale fulvous; the anterior coxse whitish, the posterior pair with a black stripe exteriorly; posterior tarsi white, the basal third black. 1865.] 20 Abdomen elongate, subfusiform, slender at base, shining; basal seg- ment white with a broad, median, black band; remaining segments black, their apical half white ; ovipositor black, exserted half the length of the abdomen. Length 4$ lines; expanse of wings 8 lines. Collection, — Ent. Soc. Philad. One specimen. Mesostenus tricolor. Brulle. Mesostenus tricolor, Brulle. Hym. p. 209. Collection. — Ent. Soc. Philad. One specimen. This species has the metathorax whitish, with its base broadly black, as well as a central and two lateral longitudinal lines, the central one is dilated in the middle and carinated; on the anterior third there is a transverse carina, and on the disk in front of this carina there are two short longitudinal carinse which are approximate until near the base, where they diverge towards the scutellum ; instead of a spine on each siHe posteriorly, there is a transverse, semicircular, acute carina ; the surface is irregularly striated ; the second abdominal segment is whitish on each side at base ; the legs are entirely fulvous, except the tips of the tarsi, which are blackish. The single specimen before me is 4| lines long ; expanse of wings 7 lines. Mesostenus subtenuis, n. sp. Black; face, orbits, broad annulus on antennse, two lines on mesothorax, most of pleura and metathorax, and bands on abdomen, white ; legs pale fulvous ; wings hyaline; metatborax and basal segment of abdomen spinose. Male. — Head black; face, orbits, very broad on the cheeks, clypeus. and spot on mandibles, white; palpi yellowish; antennae slender, rather longer than the body, black, with a very broad white annulus near the tip. Thorax black, shining, slightly pubescent; mesothorax with two. abbreviated, longitudinal, white lines on the disk, the dorsal lines deeply impressed ; the collar, tegulae, a sutural line before and a spot beneath the anterior wing, a spot beneath and a large space behind the posterior wing, the pleura, scutellum, and the carinae in front and on each side, and the postscutellum, all whitish ; the suture between the pectus and pleura, black; metathorax pubescent, polished, armed with a stout subobtuse spine on each side posteriorly, base black, with a broad cen- tral lonsntudinal black line and a narrow one on each side also black, rest of the surface yellowish, deeper on the sides. Wings hyaline, slightly iridescent; nervures and stigma pale fuscous; areolet much larger than usual. Legs long and slender, p-de fulvous; the tarsi, espe- cially the posterior pair, whitish, dusky at extreme tips. Abdomen elongate, subcompressed, shining, slender at base; first segment dilated on each side about the middle into a large, stout tubercle; remaining 30 [January segments clothed especially on the sides with short, blackish pube- scence ; basal segment white, with a central blackish stripe ; second segment also white, with a broad central black band not touching the lateral margins, and a black line on each side at base confluent with the basal margin which is also black ; remaining segments white, more or less black at base, but this color not touching the lateral margins. Length 3| lilies; expanse of wings 6J lines. Collection. — Ent. Soc. Philad. One specimen. Easily recognized by the large tubercle on each side of the basal segment of the abdomen. -'.-■ Mesostenus semialbus, n. sp. Black; face, orbits, annulus on antennae, two lines on mesothorax, most of pleura, metathorax and abdomen, white; legs fulvous; wings hyaline; meta- thorax with two long acute spines. Female. — Head black ; face, orbits, broad on the cheeks, clypeus. spot on mandibles, and palpi, white; antennae about as long as the body, slender, black, with a broad white annulus a little beyond the middle, basal joint beneath with a pale spot. Thorax : mesothorax black, with two short lines on the disk, the dorsal lines deeply impressed ; pectus black, aciculate, its upper margin bordering on the mesothorax, and a spot over each anterior coxa, white; tegulae, a spot beneath the anterior wings and the pleura, sides and beneath except the lateral sutures, whitish ; scutellum black, with a large white spot at tip, the carina on each side in front, the postscutellum, as well as the lateral carina? lead- ing to the base of the wings, also whitish ; metathorax elongate, slightly pubescent, armed posteriorly with two long acute spines, whitish, a broad, central longitudinal stripe, broadly dilated at base, a narrow stripe on each side just outside of the spines, commencing in a spot near the base, and a small spot on each extreme side posteriorly, black ; the dorsal surface just above the spines, and the sides are aciculate. Wings hyaline, slightly dusky at tips ; nervures and stigma fuscous ; areolet larger than usual. Legs long and slender, pale fulvous, the tarsi dusky at tips; coxae whitish, each with an exterior black longitu- dinal line. Abdomen elongate, subfusiform. slender at base and sub- compressed at tip, shining; basal segment black, with the tip and lateral margins white ; second segment white, with a large triangular mark near the tip, and a short line on each side at base, confluent with the basal margin, black; third segment white, with its basal margin and a broad transverse mark confluent with the base, black ; remaining seg- ments white, with their basal margins narrowly black ; ovipositor 1865.] 31 black, two-thirds the length of the abdomen. Length 6] lines; ex- panse of wings 10 J lines. Male. — Resembles the female, except that the basal joint of the an- tennae beneath is dull yellowish, and the spines on the metathorax more obtuse ; the abdomen is not so distinctly marked on the 2nd and 3rd segments as in the female, and the 2nd segment is rufous instead of black, which may be owing to immaturity ; the apical segments are more broadly black at base than in the female. Length 6| lines; ex- panse of wings 9jr lines. Collection. — Ent. Soc. Philad. Two ( $ ? ) specimens. Mesostenus flavescens, n. sp. Yellowish: face orbits, annulus o.i antennfe, lines on mesothorax, and scu- tellum, whitish; wings hyaline; metathorax with two obtuse spines. Female. — Pale honey-yellow, shining; vertex blackish; the face, broad orbits and clypeus, whitish ; antennae two-thirds the length of the body, black, with a whitish annulus beyond the middle, basal joint beneath pale ; mesothorax honey-yellow, the dorsal lines well impressed, blackish, on the middle two longitudinal whitish lines interrupted by the blackish dorsal lines: tegulae, a line before and a spot beneath the anterior wings, a space behind the posterior wings, the scutellum and postscutellum, and the carinas in front of the scutellum, whitish ; the space on each side of the scutellum, blackish ; metathorax honey-yel- low, finely sculptured and with two short, obtuse, whitish spines be- hind, the elevated lines well defined, the anterior transverse carina sinuate. Wings hyaline, slightly iridescent ; nervures fuscous ; areolet minute. Legs entirely pale yellowish. Abdomen elongate, subdepressed, shining, basal segment short, broad at tip, the peduncle short and ro- bust ; apical margins of all the segments obscurely whitish, more obvi- ous on the first segment ; ovipositor blackish, scarcely exserted. Length 3 lines; expanse of wings 5 lines. Collection. — Dr. J. Gundlach. One specimen. Mesostenus pusillus, n. sp. Yellow; spot behind antennfe, occiput, mesothorax, except two central lines, most of pleura, and base of metathorax, blackish; hind legs and abdomen honey-yellow ; wings hyaline, iridescent. Female — Head yellowish; a broad black stripe commencing behind the base of antennae and extending back to the occiput, covering the ocelli, and becoming confluent with the black color which occupies nearly the whole of the occiput ; face slightly dusky ; antennae slender, more than half the length of the body, pale honey-yellow. Thorax shining ; mesothorax black, polished, the dorsal lines rather deeply 32 [January impressed and margined exteriorly with pale testaceous ; pectus pale yellowish ; pleura piceous, tinged with reddish beneath, a large spot beneath the hind-wing and a small one beneath the fore-wing, pale yellowish ; scutellum and postscutellum pale yellowish, the space on each side, blackish ; tegulae and a large spot behind the posterior wing. pale yellowish ; metathorax finely rugose, obliquely depressed behind, black above, with a large obcordate mark on the posterior face, pale yellowish, as well as the sides entirely. Wings whitish hyaline, iride- scent ; nervures and stigma pale fuscous ; areolet minutely quadrate, the outer nervure obsolete. Legs long and slender, yellow ; the poste- rior pair honey-yellow, their coxge with a large blackish spot on both sides, confluent with the base. Abdomen elongate, very slender at base, subclavate, strongly arcuated, honey-yellow ; 1st segment about one-third the length of the abdomen, linear, slightly broader at tip with a slight tubercle on each side near the apical third, basal half pale yel- lowish, the rest honey-yellow, darkest towards the middle ; 2nd seg- ment about same length as the 1st, gradually dilated towards the tip which is broad, the extreme base blackish ; apex broad, truncate and faintly compressed ; ovipositor slightly exserted, yellowish. Length 3 lines; expanse of wings 4* lines. Collection. — Dr. J. Grundlach. One specimen. Genus EPIMECIS. Brulle. Epimecis ferruginosa, u. sp. Bright honey-yellow, abdomen bright ferruginous; wings yellowish-hyaline: antennae brown. Female. — Head bright ferruginous, tips of mandibles blackish ; eyes large and very prominent ; antennae slender, two-thirds the length of the body, blackish, the two basal joints ferruginous. Thorax bright honey-yellow, smooth and polished, neck elongate ; mesothorax pointed in front, distinctly trilobed ; scutellum obtusely elevated, yellowish ; metathorax convex, smooth and polished, slightly pubescent, bright honey-yellow. Wings ample, deep yellowish-hyaline, the apex tinged with fuliginous ; nervures pale ferruginous, stigma yellow ; the costal vein for a short distance behind the stigma and the transverse vein dividing the costal cell from the first submarginal cell, blackish. Legs long and rather slender, bright honey -yellow, posterior pair ferrugi- nous, with the extreme tips of their femora, tibiae, and of all the tarsi, brown ; apex of tarsi with a very large pulvilli, which is deeply emar- ginate at tip. Abdomen elongate, more than twice the length of the head and thorax, cylindrical, almost sessile, bright rufo-ferruginous. smooth and polished, slightly pubescent, especially towards the apex ; 1865.] 33 segments about twice as long as broad, somewhat flattened on the disk, deeply depressed on each side at base, leaving the middle of the base prominent, so as to form a broad rounded obtuse tubercle, at the apical fourth of each segment there is another lateral transverse depression ; second segment very deeply impressed on each side at base; the three apical segments have a dusky streak down their middle ; ovipositor nearly half the length of the abdomen, rufous, very acute, slightly thickened about the middle and finely grooved, valves black and pu- bescent. Length 7} — 10} lines ; expanse of wings 13} — 10 lines. Collection. — Ent. Soc. Philad. Three $ specimens. Epimecis fascipennis, n. sp. Honey-yellow; head and antennae blackish; wings pale yellowish, with a transverse band across the middle and the apical fourth, fuscous. Female. — Honey-yellow, apex of abdomen paler, shining, slightly pubescent ; head blackish, face obscure rufous ; antennae piceous (broken off beyond the 4th joint). Mesothorax dull honey-yellow, not so much pointed in front and not so distinctly trilobed as in 0. ferruginosa. Wings ample, pale yellowish-hyaline, with a fuscous band, commencing narrowly at the base of stigma and gradually dilating to the posterior margin of the wing, covering nearly the basal half of the first submar- ginal cell, the apical fourth also fuscous ; nervures and stigma pale yel- lowish, the costal vein for a short distance behind the stigma, the ner- vure dividing the costal cell from the first submargiual cell, and the cubital nervure at the base of the latter, blackish. Legs honey-yellow, the posterior tibiae, their tarsi and tips of the other tarsi, brownish; pulvilli as in ferruginosa. Abdomen sculptured as in ferruginosa, with the incisures and sides of the segments more deeply depressed; ovipo- sitor about one-third the length of the abdomen, rufous, valves black and pubescent. Length 5 lines; expanse of wings 9 lines. Collpction. — Ent. Soc. Philad. One specimen. Epimecis fuscipennis, n. sp. Rufous ; head, antennae and legs, except base of femora and the coxae, black ; wings ample, fuscous. Male. — Sculptured as in the preceding species ; rufous, polished ; head black, palpi rufous; antennae nearly as long as the body, slender, black, piceous towards the tips. Legs rufous, the four anterior femora except base, the posterior femora entirely, all the tibiae, and the four posterior tarsi, more or less blackish. Wings ample, fuscous, with a bronze reflection ; nervures and stigma ferruginous. Abdomen elon- gate, subcylindric, rather more deeply sculptured than in the preceding species; entirely rufous. Length 5 lines; expanse of wings 9 lines. Collect ion. — Dr. J. Grundlach. One specimen. 34 [January Epimecis atriceps. n. sp. Honey-yellow ; head and antennae black, mouth yellow : abdomen dull fer- ruginous : wings hyaline, iridescent. Female. — Head black ; frontal orbits beneath antennas obscurely ru- fous ; clypeus, mandibles and palpi, yellow ; antennas slender, as long as the body, black, the basal joint beneath, dull rufous. Thorax en- tirely pale honey-yellow, smooth and polished. Wings rather short and narrow, hyaline, iridescent; nervures and stigma fuscous. Legs moderate, pale honey-yellow, posterior tibiae and tarsi dusky, tips of all the tarsi brown, with pulvilli as in the preceding species. Abdomen about twice the length of the head and thorax, dull ferruginous, the segments deeply depressed at base and a little before the apex ; ovipo- sitor about one-third the length of the abdomen, blackish. Length 4 lines; expanse of wings 64 lines. Collection. — Dr. J. Gundlach. One specimen. Readily distinguishable from the other species by the smaller and hyaline wings. Genus CLISTOPYGA. Grav. Clistopyga? lateralis, n. sp. Honey-yellow; face and orbits white; antenn e brown; abdomen ferruginous, with five black spots on each side; wings hyaline, areolet triangular, slightly oblique. Female. — Honey-yellow, shining ; face, orbits, clypeus, mandibles and palpi, white; eyes moderate, oval, slightly emarginate, black; an- tennas slender, about as long as the body, entirely pale fuscous. Thorax smooth and polished ; mesothorax dull honey-yellow, somewhat flattened ; scutellum small and flattened ; metathorax finely punctured, sides and posterior face rather suddenly depressed, on each side of the insertion of the abdomen a small black spot. Wings rather short and narrow, hyaline, iridescent, nervures and stigma pale fuscous; areolet small, tri- angular, and slightly oblique. Legs rather short and slender, yellow, pulvilli moderate and pubescent. Abdomen sessile, rather more than twice the length of the head and thorax, sides parallel; rufo-ferrugi- nous, the 2nd and four following segments with a small black spot on each side at tip; segments slightly longer than wide, rather deeply de- pressed at base and apex, and the second segment obliquely depressed on each side at base; last veutral segment entire; ovipositor blackish, about one-third the length of the abdomen. Length 4$ lines; expanse of wings 6 lines. Male. — Resembles the female. Length 3} lines; expanse 5 lines. Collect ton. — Dr. J. Gundlach. Two (S J) specimens. I have placed this species in the genus Clistopyya with doubt, on 1865.] 35 account of the distinct areolet of the wings; otherwise, it seems to be- long to that genus. It seems also allied to Glt/pta, but the segments of the abdomen are not obliquely grooved. Genus PIMPLA, Fabr. Pimpla marginella. Brulle. Pimpla marginella, Brulle, Hym. p. 107. Collection. — Ent. Soc. Philad. 2 % . 1 9 , specimens. Pimpla rufoniger, n. sp. Dull rufous; head, antennae and abdomen, black, the apical margins of the latter obscurely pale ; wings subhyaline, with a brassy gloss. Female. — Head black, clothed, especially ou the face, with short, white pubescence ; middle of the face, clypeus and base of mandibles, rufous ; labruni and palpi yellowish ; antennae very slender, rather longer than the body, piceous-black, the basal joint beneath rufous. Thorax above and beneath dull rufous, opaque ; tegulae and scutellum rufous ; metathorax dull rufous, blackish at base above, sides of the dorsal surface transversely wrinkled, the disk smooth and shining, on the middle there is a transverse carina from which the surface slopes rather abruptly behind, sides rather abrupt, finely aciculate and slightly pubescent. Wings subhyaline, tinged with fuscous, and with a rather strong brassy gloss ; nervures and stigma black, the latter with a pale dot near the base ; areolet small, subtriangular, slightly oblique and subpetiolated. Legs, with the coxae, rufous, the tarsi slightly obfus- cated. Abdomen stout, strongly arcuated at base, smooth and shining, black, the apical margins of all the segments obscurely pale testaceous, sides of the apical segments and the whole of the ultimate one, rufous ; ovipositor black, nearly two-thirds the length of the abdomen. Length b\ lines; expanse of wings 11} lines. Collection. — Ent. Soc. Philad. Two specimens. Closely allied to P. marginella Brulle, but is larger, moi - e robust, and much darker in color; the antennae are much longer and the metatho- rax differently sculptured, that of marginella being uniformly punctured, opaque, and entirely rufous. Pimpla cubensis, n. sp. Yellow: three stripes on mesothorax, sutures of pleura, and base of abdominal segments, black; wings yellowish-hyaline; 3rd joint of antennae longer than the 4th. Female. — Yellow, shining; spot enclosing the ocelli, pointed before, and tips of the mandibles, blackish ; eyes also blackish ; antennae as long as the body, blackish above, brownish beneath, yellowish at base, 3rd joint one-third longer than the 4th, which is as long as the 1st and 2nd joints together. Thorax: mesothorax with a broad blackish stripe 36 [January down the middle, and another on each side over the base of the wings; tegulse with a large blackish spot ; sutures of the pleura, blackish ; metathorax smooth and polished, sides abruptly truncate, extreme base, and the tip at the insertion of the abdomen, blackish. Wings ample, yellowish-hyaline ; uervures and stigma fuscous ; areolet small, subtri- angular. Legs rather stout, yellow, the posterior trochanters and femora rufous, tips of the four anterior tarsi, blackish. Abdomen polished, dorsal surface of the three basal segments uneven, that of the basal segment grooved on each side and elevated in the middle which has also a shallow groove, yellow, the base of all the segments broadly black, those on the apical segments shading into brown; ovipositor stout, black, exserted about 1] line. Length 62 lines; expanse of wings 12 lines. Collection.- — -Ent. Soc. Philad. One specimen. Pinipla obscurata. u. sp. Yellowish ; antennae yellowish-brown, 3rd joint longer than the 4th: meso- thorax with three brown stripes; abdomen stained with dusky; wings yellow- ish-hyaline; legs bright yellow. Female. — Yellowish, shining; antennae as long as the body, yellow- ish-brown, the basal joint yellow, the 3rd joint one-third longer than the 4th as in cubensis. Thorax: mesothorax with three broad brown longitudinal stripes ; the sutures between the pectus and pleura and between the pleura and metathorax, blackish ; base of metathorax also blackish. Wings yellowish-hyaline, the apical margins dusky; nervures ami stigma pale ferruginous; areolet small, subtriangular. Legs bright yellow, tips of the tarsi slightly dusky. Abdomen shining, obscure yellowish, the base of the segments blackish, the third and three follow- ing segments almost entirely dusky, with a slight purplish iridescence in certain lights, these segments are densely and rather deeply punc- tured; basal segment sculptured as in cubensis; ovipositor stout, black, exserted about 1? line. Length 5.} lines; expanse of wings 10 lines. Collection. — Dr. J. Griindlach. One specimen. Closely allied to P. cubensis, but the abdomen is not so regularly colored and the segments are distinctly and deeply punctured, while those of cubensis are smooth and impunctured. Pimpla terminalis, n. sp. Yellow : antennfe black, 3rd joint as long as the 1st and 2nd together; meso- thorax with a dorsal brown stripe; base of metathorax and of all the abdominal segments, black; wings yellowish-hyaline, with a fuscous spot at tip. Female. — Yellow, shining; face pale yellow, tips of mandibles black; antennae as long as the body, black, rufous at base, basal joint beneath yellow, 3rd joint as long as the 1st and 2nd joints together, the 4th joint about two-thirds the length of the 3rd, and equal with the follow- 1865.] 37 ing joints. Thorax: mesothorax with a broad brown stripe down the middle; base of scutellum and of metathorax black, the latter has a well defined transverse subarcuated carina. Wings yellowish-hyaline, with a fuscous spot at tip; nervures fuscous, stigma fulvous; areolet small, subtriangular, oblique. Legs bright yellow, the two apical joints of the posterior tarsi black. Abdomen polished, smooth, yellow, the base of the first five segments rather broadly black ; apex tinged with fulvous ; ovipositor slender, rufous, exserted two-thirds the length of the abdomen. Length 5 lines; expanse of wings 10 lines. Collection. — Ent. Soc. Philad. Two specimens. Very closely allied to P. cubensis, but is smaller and easily distin- guished by the fuscous spot at the tip of the wings; the joints of the antennae, beyond the second, are shorter, and the ovipositor longer and slenderer. Pimpla consimilis, n. sp. Yellow: antennae blackish. 3rd joint as long as the 1st and 2nd together; me- sothorax with three brown stripes; base of the first five abdominal segments, and the hind tarsi, black; wings yellowish-hyaline, fuscous at tip. Female. — Yellow, shining; antennae as long as the body, blackish, rufous at base above, yellowish at base beneath, 3rd joint as long as the 1st and 2nd together, as in terminalis. Thorax: mesothorax with three longitudinal brown stripes ; extreme base of metathorax black, sculptured as in terminalis. Wings deep yellowish-hyaline, with the apical margin, especially at the tip of the marginal cell, fuscous ; ner- vures fuscous, stigma fulvous; areolet small, subtriangular or obliquely subquadrate. Legs yellow, the posterior tarsi black. Abdomen shining, the base of the first five segments black, very narrow on the filth seg- ment ; ovipositor rufous, slender, scarcely half as long as the abdomen. Length 4J lines; expanse of wings 9 lines. Collection. — Ent. Soc. Philad. One specimen. Closely allied to P. terminalis, but the thorax is trilineated, the wings darker, and the hind tarsi entirely black. It may, however, be a vari- ety of that species. Pimpla tricincta. n. sp. Yellow; antennae, hind femora and apical half of abdomen, rufous; three stripes on mesothorax, and basal half of the three first abdominal segments, brown ; wings yellowish-hyaline. ^ Female. — Yellow, shining; tips of mandibles black; occiput rufous; antenuae as long as the body, rufous, paler at the base beneath, the joints as in cubensis. Thorax: mesothorax with three broad, longitudi- nal, brown stripes; the sutures between the pectus, pleura and meta- thorax, the base of the scutellum and of the metathorax, blackish, the 38 [January latter smooth, without any transverse carina. Wings yellowish-hyaline, slightly dusky at tips ; nervures fuscous, stigma fulvous; areolet small, subtriangular. Legs yellow; the posterior femora, apical half of their tibiae and their tarsi, rufous. Abdomen robust, somewhat shining, densely and finely punctured, the three first segments yellow, with their base broadly dark brown; terminal segment also yellow; remaining segments rufous, the 4th and 5th somewhat brownish at base ; basal segment grooved on each side and elevated in the middle which is also grooved ; ovipositor stout, black, exserted about 1| line. Length 6 lines; ex- panse of wings 12 lines. Collection. — Dr. J. (xundlaeh. One specimen. Pimpla bicincta, n. sp. Yellow: antennae brown-black ; mesotborax with three brown stripes ; hind legs and apical half of abdomen reddish-brown; two basal segments of abdomen blackish, banded with yellow; wings yellowish-hyaline. Female. — Yellow; on the vertex on each side of the ocelli, a brown spot ; tips of the mandibles black ; antennas as long as the body, rather stout, brown-black above, apical joint and beneath reddish-brown, basal joint beneath yellowish, the joints as in terminalis. Thorax: mesotho- rax with three longitudinal, brown stripes ; the sutures between the pectus, pleura and metathorax. and the extreme base of the latter, black ; metathorax sculptured as in terminalis. Wings ample, yellowish-hya- line, with a fuscous spot at the tip of the marginal cell ; nervures fus- cous, stigma fulvous; areolet subtriangular, or obliquely subquadrate. Legs yellow; the posterior pair, with their coxae, reddish-brown, the two apical joints of the their tarsi black, the claws of the remaining tarsi also black. Abdomen polished, reddish-brown, the two basal seg- ments blackish, each with a broad yellow band at tip; ovipositor slen- der, rufous, as long as the abdomen, valves yellowish, tipped with black- ish. Length 4 lines ; expanse of wings 9 lines. Collection. — Ent. Soc. Philad. One specimen. Genus EPHIALTES, Grav. Ephialtes rufescens, n. s}3. Rufous, shining; antennae blackish: wings fuscous; ovipositor blackish, longer than the body. Female. — Rufous, shining; head with the vertex and tips of mandi- bles black; antennae nearly as long as the body, entirely black. Thorax with the dorsal lines well impressed, the middle lobe prominent; meta- thorax smooth and polished. Wings dark fusco-hyaline, slightly pale on the apical margin; nervures and stigma black, areolet triangular, subpetiolated. Legs rufous, the tarsi, especially the posterior pair. 1865.] % 39 dusky. Abdomen shining, the base and apex of the segments rather strongly contracted and the disk somewhat flattened, making the sides of the segments prominent, or subtuberculate ; on each side of the se- cond segment at tip, a transverse black spot ; apical segments tinged with yellowish ; ovipositor one-fourth longer than the body, piceous ; valves black. Length 8 lines ; expanse of wings 14 lines. Collection. — Ent. Soc. Philad. One specimen. EPIRHYSSA, nov. gen. This genus differs from Rhyssa only in the shorter and stouter an- tenuae. in the absence of the areolet of the wings, and in the somewhat shorter segments of the abdomen ; the mesothorax is also more gibbous and rather more deeply striated ; otherwise the structure is the same. The males have the abdomen not longer than twice the length of the head and thorax, subcylindric, and sometimes subclavate ; the antennae are longer than those of the female, but never so slender as those of Rhyssa. Epirhyssa speciosa, n. sp. Yellow; antennae blackish, with a yellowish annulus; mesothorax brown, with two yellow stripes; sutures of the pleura and base of the three first seg- ments of abdomen, brown; apex of abdomen rufo-fulvous ; wings yellowish- hyaline; ovipositor black, valves honey-yellow. Female. — Slightly pubescent. Head yellow, shining ; tips of man- dibles, a band across the vertex covering the ocelli and the upper part of the occiput, blackish or brown; antennae about two-thirds the length of the body, brown-black, the basal joints beneath yellowish, and slightly beyond the middle, a broad yellowish annulus. Thorax yellow, po- lished ; mesothorax gibbous, transversely striated, the middle lobe rather strongly produced in front, brown, anterior margin yellow, lateral lobes brown, the lateral margins yellow ; sutures between the pectus, pleura and metathorax, brown ; scutellum yellow, its extreme tip black- ish; metathorax yellow, smooth and polished, the sutures at base and apex blackish. Wings ample, yellowish-hyaline, with a splendid golden gloss, apex faintly clouded ; nervures and stigma fulvous. Legs yellow, the posterior coxas and femora tinged with ferruginous; tips of all the tarsi blackish. AJbdomen smooth and polished, about twice the length of the head and thorax, gradually thickened towards the tip which is slightly compressed, basal segment slightly longer than wide, apical ones shorter; three first segments yellow, their basal half brown and their extreme apical margins blackish ; fourth and following segments yellowish-fulvous, the fourth having on each side near the tip, a large, subtriangular. yellow spot, almost confluent on the disk; ovipositor 40 [January rather longer than the body, black, valves honey-yellow, whitish at tip. Length 8 lines; expanse of wings 13 lines. Male. — Much smaller and slenderer than the female; the colors mu-h brighter ; the antennae as long as the body, with the yellow an- nulus not so broad; the lateral lobes of the mesothorax more broadly margined with yellow ; the abdomen elongate, cylindric, smooth and polished, more distinctly marked than in the 9 i the three first segments being bright yellow with a broad brownish band at base, remaining segments entirely rufo-fulvous. Length 5-} lines; expanse of wings 8£ lines. Collection. — Dr. J. Grundlach 9 ; Ent. Soc. Philad. % . Two speci- mens. Epirhyssa alternata, n. sp. Bright yellow; line on vertex, antennae, except a narrow yellow annulus, mesothorax. except two yellow stripes, sutures of thorax, and the basal margins of the abdominal segments, brown; wings yellowish-hyaline; abdomen sub- clavate. Male.. — Bright yellow, polished, slightly pubescent; tips of mandibles black; a band across the vertex, covering the ocelli and the upper mar- gin of the occiput, brownish. Thorax : mesothorax gibbous, deeply and transversely striated, the middle lobe rather strongly produced in front, brown, margined with yellow ; lateral lobes brown, broadly margined with yellow; sutures between the pectus, pleura and metathorax, and at the base and tip of the latter, blackish-brown. Wings yellowish- hyaline, with a beautiful golden gloss, the apex slightly clouded ; ner- vures and stigma pale yellowish. Legs bright yellow, the posterior trochanters tinged with ferruginous; all the tarsi towards the tips black- ish. Abdomen about twice as long as the thorax, slightly thickened towards the apex, which is incurved; dorsal surface convex, smooth and polished, yellow, with the base of all the segments more or less broadly brown, becoming subobsolete and paler towards the apex. Length 5 lines ; expanse of wings 8 lines. Collection. — Ent. Soc. Philad. One specimen. Resembles the % of E. speciosa, but the abdomen is shorter, subela- vate, and altogether differently colored. Genus LAMPRONOTA. Haliday. Lampronota rufithorax. n. sp. Black; face, orbits, legs and large spot on pleura, white; most of thorax, ru- fous; wings hyaline, areolet wanting: abdomen tinged with fuscous, sessile, cylindrical. Male. — Head transverse, polished ; the face, except a spot beneath the antennae, orbits, clypeus, mandibles, except tips, and the palpi. 1865.] 41 white ; eyes large, round and prominent ; antennae very slender, longer than the body, piceous, the basal joint beneath white. Thorax gibbons, smooth and polished, rufous ; a line over the collar, tegulse, a spot be- fore and another beneath the anterior wing, and a largre, oblonu' spot on each side of the pleura, white; mesothorax depressed before the scutellum. highly polished and very smooth ; scutellum slightly flat- tened ; metathorax convex, opaque, minutely rugose, without elevated lines, the dorsal surface with a large blackish stain. Wings narrow, hyaline, iridescent; nervures and stigma fuscous; areolet wanting; 2nd discoidal cell long and narrow. Legs whitish, long and slender, the coxae robust; suture between the trochanters and femora, a subob- solete spot on the outside of the posterior coxae, tips of their femora and tibiae, and their tarsi entirely, more or less dusky; tarsal claws apparently simple, dilated at base and slightly curved at tip, the pul- villi large. Abdomen sessile, cylindrical, narrow, longer than the head and thorax, slightly thickened towards the tip ; blackish, polished, the 3rd and 4th segments above stained with brownish; 1st segment elon- gate, linear, with a slight tubercle on each side towards the base ; 2nd and 3rd segments subequal, about twice as long as broad, each with a slight tubercle on each side very near the base. Length 21 lines; expanse of wings 5? lines. Collection. — Dr. J. Gundlach. One specimen. Easily recognized by the long slender antennae, the red polished thorax, and the elongate, slender, cylindrical, sessile abdomen. It may not belong to the genus under which 1 have placed it. but is more closely allied to it than to any other genus with which I am acquainted. Genus CAMPOPLEX, Grav. Campoplex tibiator, n. sp. Dull rufous: head, antennae, mesothorax and femora, black: base of antennae, teguke, scutellum and all the tibiae and 4 anterior tarsi, yellow : wings hyaline, apex fuscous, areolet large and subrhomboidal. Female. — Head black, clothed with short pale pubescence, more obvious on the face ; clypeus rufous ; most of mandibles and the palpi, yellowish ; antenna? two-thirds the length of the body, brown-black, the two basal joints yellow. Thorax clothed with a thin pale pubescence ; mesothorax black, opaque; tegulae yellow; pectus blackish, rufous about the collar; pleura dull rufous, shining, finely punctured; scutel- lum convex, opaque orange-yellow; postscutellum black, as well as the space on each side of the scutellum; metathorax dull rufous, dusky on the posterior face, clothed with short whitish pubescence, indistinctly sculptured, posterior face depressed and somewhat sulcate. Wings 4 "J [January hyaline, slightly tinged with fuscous, the apex fuscous; nervures fer- ruginous, the stigma fulvous ; areolet large, subrhomboidal. slightly petiolated. Legs: coxae and tour posterior trochanters, rufous; ante- rior trochanters, tips of the middle femora, all the tibiae and the four anterior tarsi, yellow ; extreme tips of the posterior tibiae, their spurs, and their tarsi entirely, dull ferruginous. Abdomen dull rufous, shin- ing, slender at base and broad aud much compressed towards the apex ; second segment with its basal half above blackish, on each extreme side a longitudinal, deeply impressed line extending the whole length of the segment, and above this line at base a shallow, longitudinal fovea; ovipositor blackish, scarcely exserted. Length 6J lines; ex- panse of wings 10 lines. Collection. — Dr. J. Gundlach. One specimen. Campoplex insularis. n. sp. Black ; mouth, base of antennae, tegulse, and 4 anterior legs, yellow; posterior legs and abdomen ferruginous: wings subhyaline, areolet small, subtriangular and petiolated. Female. — Head black, thinly clothed with short pale pubescence, more obvious on the face; most of the mandibles, and the palpi, yel- lowish; antennae three-fourths the length of the body, brown-black, the three basal joints yellowish. Thorax black, slightly pubescent; meso- thorax opaque, subobsoletely stained in front with dull rufous ; pectus and pleura shining, finely striated longitudinally, with a smooth shining depressed space beneath the hind wings; scutellum rather convex, dull black, pubescent, posterior margin of the space on each side smooth and polished; metathorax dull black, rather densely clothed with ap- pressed yellowish pubescence, the sculpture indistinct. Wings hyaline, faintly tinged with yellowish, the apical margin dusky; nervures and stigma fuscous, paler at base ; areolet small, subtriangular and petio- lated. Legs: the two anterior pairs with their coxae and the posterior trochanters, yellow ; posterior coxae, femora, tibiae and tarsi, ferrugi- nous. Abdomen ferruginous, somewhat shining, slender at base and broad and much compressed towards the apex; base of first segment and the extreme apical margin of the second, black ; ovipositor scarcely exserted. Length 5$ lines; expanse of wings 8 lines. Collection. — Dr. J. Gundlach. One specimen. Campoplex atriceps. n. sp. Honey-yellow; head and base of 2nd abdominal segment, black: four ante- rior legs yellow; wings hyaline, apex fuscous, areolet rather large, subrhom- boidal and petiolated. Female. — Pale honey -yellow ; head black, face clothed with short yellowish pubescence; clypeus and mandibles rufous; palpi yellowish; 1865.] 43 antennae fulvous, basal joint yellowish. Thorax shining beneath, and minutely punctured ; mesothorax opaque, rather convex ; tegulae yel- lowish ; metathorax slightly pubescent, somewhat furrowed down the middle with a longitudinal, slightly angular carina on each side, the space inside of these carinas is finely and transversely striated, outside of these carina) there are several transverse carinas. Wings hyaline, faintly tinged with yellowish, and slightly iridescent, the apex fuscous ; ner- vures and stigma pale testaceous; areolet rather large, subrhomboidal, and petiolated. Legs: all the coxae and posterior legs, honey -yellow ; four anterior legs yellow. Abdomen very slender at base, broad and much compressed towards the apex ; basal two-thirds of the 2nd seg- ment above, blackish ; ovipositor scarcely exserted. Length 4 lines ; expanse of wings 6 lines. Collection. — Ent. Soc. Philad. One specimen. Campoplex ? pedalis, n. sp. Black; face silvery; most of mandibles, palpi, tegulte, a spot before the wings, and the four anterior coxse and trochanters, white ; legs honey-yellow or pale rufous; wings hyaline, iridescent, areolet very minute, petiolated; ab- domen long and slender, compressed towards the tip. Male. — Black, opaque, finely and densely punctured, thinly clothed with a short, fine, pale, glittering pubescence, more obvious and some- what silvery on the face, cheeks and metathorax ; face short, broad ; eyes ovate, rather large ; most of mandibles, and the palpi, whitish ; antennas three-fourths the length of the body, attenuated towards the tips which are slightly involute, black, the basal joint piceous beneath. Thorax slightly elongate, somewhat depressed above ; mesothorax gla- brous ; a line over the collar, tegulae and a sutural line before, white ; scutellum flattened ; metathorax clothed with a silvery pubescence, the elevated lines sharply defined, the central area rather large, rounded in front, and open behind. Wings moderate, hyaline, beautifully iride- scent, the apical margins with a brilliant green reflection ; nervures and stigma blackish; areolet very minute, almost obsolete, petiolated and oblique. Legs long and tolerably slender, honey-yellow or pale rufous, the anterior pair much paler, the four anterior coxae and tro- chanters, white. Abdomen entirely black, about half again as long as the head and thorax, slender, gradually broader and compressed to- wards the apex, the two basal segments long, subequal, the 1st slightly dilated at tip; the 3rd and following segments rather broad and much compressed. Length 4 lines ; expanse of wings 6 lines. Collection. — Dr. J. Gundlach. One specimen. 44 [January Campoplex? bellus, n. sp. Yellow, abdomen and legs honey-yellow; antennae, three lines on mesothorax, spot on pleura, another on scutellum, and an inverted U on metathorax, black; antennae and legs stout: thorax robust, gibbous ; abdomen short, ovate, com- pressed, with a slender petiole: wings moderate, hyaline, dusky at tip, areolet very minute, almost obsolete, petiolated. Female? — -Head very transverse, flat, entirely yellow, except a black- ish spot on the vertex enclosing the ocelli ; eyes ovate, not prominent ; antennae nearly as long as the body, stout, black, the two basal joints yellowish, the other joints indistinct. Thorax gibbous, short and robust, yellow ; mesothorax with three broad, black, longitudinal stripes, the middle oue abbreviated behind, the lateral ones abbreviated before and confluent behind by means of a subtriangular spot in the excavation in front of the scutellum; on each side of the pleura a rather large, trans- verse, black spot; scutellum gibbous, shining, yellow, with a large black spot behind, as well as another on the postscutellum ; metathorax not prominent, yellow, with an elongate spot on each side coufluent at base with the spot on the postscutellum and forming an inverted II ; the elevated lines obsolete. Wings moderate, hyaline, iridescent, the apex dusky; nervures and stigma fuscous; areolet extremely minute, almost obsolete, petiolated, the cubital nervure within the submarginal cell strongly arcuated towards the costa. Legs yellow, short, the posterior pair longer and robust, honey-yellow, their coxae black at base; tips of four anterior tibiae with a very long inner spur, and a short outer one on the middle pair, not visible on the anterior pair; the posterior tibias each with two long stout spurs, of which the inner one is longest ; pos- terior femora robust and simple. Abdomen short; 1st segment slender, slightly dilated at tip with a subobsolete tubercle on each side near the apex ; 2nd and following segments together broadly ovate and much compressed, honey-yellow, dusky on the disk of the 2nd segment ; at tip of the 1st segment above a large blackish spot. Length 2V Hues; expanse of wiugs 5 lines. Collection. — Dr. J. (Jundlach. One specimen. This pretty little species will probably form a new genus, as T cannot reconcile it with any genus at present known to me; the robust thorax, the gibbous scutellum, the stout antennae and legs, the short, broad, ovate, compressed abdomen, and the long, unequal tibial spurs, are cha- racters not combined in any genus known to me ; but having only a single specimen, which, judging from the broad abdomen, is apparently a female, I do not care to form another genus, and for the present refer it to Campojilex, to which it seems most closely allied. 1 865,] 45 Genus THYREODON. Brulle. Thyreodon grartdis. n. sp. Black: antennae fulvous: wings deep violaceous : metathorax irregularly, but finely striated laterally and posteriorly. Fnnale. — Deep black, shining, slightly pubescent ; head entirely black, the face densely punctured, lateral foveae of the clypeus very deep ; antenme two-thirds the length of the body, fulvous, the basal joint black, the two following joints rufous, the extreme apical joints dusky. Thorax finely punctured ; mesothorax very minutely and in- distinctly punctured, with the dorsal furrows rugose, broad, converging on the scutellum and confluent behind the middle, each furrow with a more or less well defined carina down the middle ; scutellum convex, densely punctured, deeply excavated in front, with the carina on each side of the excavation sharp and well defined ; metathorax opaque black, depressed behind, with a broad, shallow excavation strongly contracted at base, dorsal surface broadly depressed on each side of the disk, .sides rather abrupt, surface irregularly, rather finely and longitudi- nally striated behind, and transversely and more coarsely on the sides. Wings uniform dark fuscous, with a brilliant deep violaceous reflection ; nervures and stigma black. Legs entirely black. Abdomen elongate, falcate, shining, impunctured, rather broad and compressed towards the tip; basal segment longest slender, subcylindric, the tip slightly swollen and convex; 2nd segment one-fourth shorter than the 1st, gradually broader towards the tip, and on each side of the basal half a longitudinal, shallow furrow; 3rd segment shorter than the 2nd and slightly longer than broad, remaining segments broader than long ; ovipositor not ex- serted. Length 15 lines; expanse of wings 21 lines. Male. — Resembles the female, but the wings are not so dark, the apical margin being subhyaline, and the violaceous reflection is not so deep ; the abdomen is longer and not so broad and compressed towards the apex ; the 4th, 5th and Gth ventral segments are concealed by the same dorsal segments, which are tightly closed over them ; at the ex- treme apex of the venter there are two elongate processes, obliquely pointed at the tip, and just above these, on each side of the last dorsal segment, there is a straight, acute spine. Length 16 lines; expanse of wings 21 lines. Collection. — Ent. Soc. Philad. 2 9,1 £ , specimens. One of the female specimens has the head, with the exception of a space behind the antennae covering the ocelli, entirely rufous, as well as a subtriangular spot on each side of the thorax before the tegulre. I received this species under the name of Ophlon morio Fabr., but 46 [January it differs so much from our local species, which is generally supposed to be the morio of Fubricius, that I cannot consider them as identical, and have therefore described it under another name. The specimens before 1113 of our local species differs from the above species by being smaller (12 J lines long, 18 lines expanse of wings), the wings have a bronze reflection, the metathorax is strongly rugose, or rather coarsely reticulated, the abdomen in the 9 1S broader and much more com- pressed towards the apex, and the punctures of the body are more distinct; but none of the specimens before me have the anterior legs testaceous, or the front of the head with yellow spots, as stated by Fa- bricius and Olivier. I3rulle, however, makes no mention, in his descrip- tion of morio Fabr.. of the front legs being testaceous, or the head having yellow spots. Although this species and morio are closely allied, yet the former may be easily distinguished by the larger size, the deep violaceous wings, and the sculpture of the metathorax, which is not at all strongly rugose and reticulated, as is the case with morio, but is ra- ther finely striated on the sides and posterior face. Thyreodon fulvescens, n sp. Fulvous or honey-yellow; face and orbits yellow ; wings yellow : basal half of 2nd abdominal segment above, black. Male. — Fulvous or honey -yellow, shining, clothed with a short yel- lowish pubescence, more obvious when viewed laterally ; face, orbits, clypeus. mandibles, except tips which are black, yellow; palpi fulvous; antennae two-thirds the length of the body, fulvous, the basal joint be- neath, yellow. Thorax : mesothorax very finely and indistinctly punc- tured, the dorsal furrows deep and converging on the scutellum; pleura smooth and polished; scutellum convex, polished, tinged with yellow- ish ; metathorax opaque, rather abruptly sloped behind, indistinctly sculptured above, but rather coarsely reticulated on the sides ; tegulse yellowish. Wings yellowish-hyaline, the apical margins fuliginous; nervures ferruginous. Legs color of the body, the tibiae and tarsi somewhat paler. Abdomen elongate, rather broad and compressed to- wards the apex, smooth and polished; basal half of the second segment above, black; anal processes rather thick and obtusely pointed. Length 123 lines; expanse of wings 17 lines. Collection. — Ent. Soc. Philad. One specimen. Thyreodon affinis. n. sp. Fulvous or honey-yellow; tip of antennae and base of 2nd abdominal segment blackish; wings fuscous with a violaceous reflection. Male. — Fulvous or honey-yellow, shining, clothed with a very short. yellowish pubescence, more obvious when viewed laterally; orbits paler. 1865.] 47 mandibles tipped with blackish ; antennae two-thirds the length of the body, fulvous, apical joints brown-black. Thorax: mesothorax indis- tinctly punctured, the dorsal grooves broad and rather deep, with a subobsolete elevated line down the middle of each groove; pleura polished ; scutellum convex, deeply excavated in front, with the carina on each side acutely developed; metathorax abruptly sloped behind, with a broad shallow furrow posteriorly, becoming deeper towards the in- sertion of the abdomen where the surface is longitudinally striated, re- mainder of the surface indistinctly sculptured. Wings dark fuscous, with a violaceous reflection, more obscure on the apical margins ; ner- vures blackish. Legs, color of the body. Abdomen elongate, falcate, apical segments compressed, but not very broad ; basal half of the 2nd segment above, black ; anal processes broad, obliquely pointed at tips which are acute. Length 12 lines; expanse of wings 17 lines. Collection. — Dr. J. G-undlach. One specimen. Closely allied to T. fuloescens, but is at once distinguished by the dark violaceous wings, and the black apical joints of the antennae; the face is not yellow, the mesothorax is more broadly furrowed, and the abdomen is not so broad towards the apex. Thyreodon elegans. n. sp. Bright yellow; three broad stripes on mesothorax, sutures of thorax beneath, posterior face of metathorax, femora, spot near tip of 1st abdominal segment, as well as the basal half of the 2nd, black : abdomen margined with ferruginous above and beneath ; wings yellow, apical margins fuliginous. Female. — Head yellow, shining, a spot behind the base of each an- tenna, surroundings of the ocelli, tips of mandibles, a dot on middle of the face just beneath the antennae, and most of the occiput, brown-black ; antennae scarcely half the length of the body, stout, fulvous, the apical joints black, the basal joiut beneath tinged with yellow. Thorax shining, slightly pubescent, finely punctured ; mesothorax with three broad, black, longitudinal stripes, the middle one extending from the anterior margin almost to the scutellum, the lateral ones abbreviated in front but reaching the posterior margin, dorsal lines obsolete, but the middle is depressed in front and slightly carinated longitudinally, the angles in front, on each side of the depression, are elevated into an ob- tuse tubercle; pectus blackish, slightly reddish towards the collar which has a yellow line extending down on each side; pleura polished, yellow, with a broad, uneven, longitudinal line on each side bordering on the posterior suture, a transverse line on each side below, and the entire surface beneath between the four anterior coxae, black ; space between the pleura and metathorax blackish, broadly yellow on each 48 [January side; scutellum prominent, quadrate, yellow, densely punctured, deeply excavated in front and acutely carinated on each side, the excavation blackish; postscutelluin yellow; metathorax prominent, yellow, basal suture strongly contracted, posterior face abruptly sloped, channelled down the centre, brown-black, and as well as the sides, rather coarsely reticulated; tegulae yellow. Wings rather short, deep yellowish-hya- line, the apical margin broadly fuliginous, nervures honey-yellow; pos- terior pair with a large fuscous spot near the base. Legs yellow; a large spot at base of posterior coxae, the anterior femora beneath obscurely, the four posterior femora, except base and apex, and the extreme tips of all the tarsi, blackish. Abdomen elongate, polished, broad and com- pressed towards the tip; basal segment bright yellow, with a large irregular black mark above near the tip; 2nd segment honey-yellow, the basal half above black ; following segments honey-yellow, their sides broadly bright yellow ; ovipositor not exserted. Length !)•] lines; ex- panse of wings 12 lines. Collection. — Dr. J. Grundlach. One specimen. This is a beautiful species; the antennae and wings are much shorter than any of the other species of this genus. Genus PORIZON, Grav. Porizon fulvescens. n. sp. Pale honey-yellow; antennae dusky ; base of 1st and disk of 2nd and 3rd al)dorainal segments blackish ; wings hyaline, iridescent. Female. — Pale honey-yellow, shining; orbits, middle of face, clypeus and mouth paler ; antennae nearly as long as the body, dusky. Thorax : mesothorax with the dorsal lines tolerably well impressed, darker in color than the rest of the thorax ; space on each side of the scutelluiu blackish ; metathorax with the elevated lines well denned, the central area large, elongate, angular in front and truncate behind. Wing's whitish-hyaline, iridescent ; nervures and stigma pale testaceous. Legs yellowish, tinged with honey-yellow. Abdomen very slender at base, gradually broader and much compressed towards the tip which is trun- cate ; honey -yellow, the base of the 1st and the dorsal surface of the 2nd and 3rd segments, more or less blackish ; ventral segments yellow- ish ; ovipositor two-thirds the length of the abdomen, piceous. porrect. Length ?> lines ; expanse of wings 4 lines. Collection. — Dr. J. Gundlach. One specimen. Porizon apicalis, n. sp. Pale honey-yellow; head, part of thorax, and base of legs, yellow; basal middle of metathorax, base of the 2nd and 3rd, and the two apical segments of abdomen, fuscous ; wings hyaline. Male. — Pale honey-yellow, shining; head yellow, tips of mandibles 1865.] 49 black ; antennae dusky, two basal joints yellow. Thorax honey-yellow, the mesothorax, pectus, tegulae and scutellum stained with yellow ; metathorax with the elevated lines well defined, the central area rather large and pentangular, black, the area behind it finely rugose. Wings hyaline, iridescent; nervures and stigma pale testaceous. Legs yellow- ish, tinged with honey-yellow, the coxae and trochanters yellow, the posterior tibiae and tarsi somewhat dusky. Abdomen elongate, very slender at base, gradually broader and much compressed towards the tip ; base of the 2nd and 3rd segments above, and the two apical seg- ments entirely, fuscous. Length 3 lines; expanse of wings 4 lines. Collection. — Dr. J. Gundlach. One specimen. May possibly be the male of P. fulvescens, from which it differs in the sculpture of the metathorax, and in the somewhat different color- ation. Genus TRACHYNOTUS. Grav. Trachynotus cincticornis, n. sp. Honey-yellow 9 • rufo-fermginous % : antennse longer than the body, with a broad yellowish annulus near the tip ; posterior tarsi with 2nd and 3rd joints whitish; four anterior legs, and apical half of abdomen in % , honey-yellow; wings hyaline. Female. — Honey-yellow, slightly pubescent ; face sparsely but deeply punctured; antennae slender, rather longer than the body, apical two- thirds blackish, with a broad yellowish annulus near the tip, basal third rufous. Thorax shining beneath ; mesothorax roughly and con- fluently punctured, somewhat rugose ; most of pectus and a depression on the pleura beneath the wings smooth and polished, rest of pleura sparsely and deeply punctured ; scutellum rugose, the excavation in front transversely striated, the spaces on each side deeply excavated, the posterior one striated ; metathorax rugose, smoother and shining at base, on each side of which, above, there is a semicircular carina enclos- ing a small space which is smooth and polished and from which there are several carinae radiating posteriorly, but soon become lost in the rugosity, the smooth space at base, between the two semicircular spaces, is somewhat depressed, sides of the metathorax clothed with a fine whitish pubescence. Wings obscure hyaline, faintly iridescent; ner- vures and stigma brown. Legs honey-yellow, the two anterior pairs pale, the apex of the posterior tibiae and their tarsi, dusky, the 2nd and 3rd joints of the latter whitish. Abdomen : the two basal seg- ments long and slender, cylindrical, polished, rufo-ferruginous, apical segments compressed and pale honey-yellow; ovipositor exserted about 50 [January two lines, yellowish, valves black. Length 7 lines ; expanse of wings 8 lines. Male. — Resembles the female, but the general color is rufo-ferrugi- nous, the abdomen is slenderer and not so much compressed beyond 2nd segment. Collection. — Ent. Soc. Philad. 9 > Dr. J. Gaindlach % . Two speci- mens examined. Trachynotus fuscatus. n. sp. Fuscous; face and four anterior legs ferruginous, 9> rufo-ferruginous, orbits yellow, abdomen fuscous, with base of 1st and the 4th, 5th and 5th segments of the latter ferruginous, as well as the 4 anterior legs, % ; wings obscure hya- line. Female. — Slightly clothed with a very fine whitish pubescence. Head dull ferruginous, the orbits, base of mandibles and palpi, paler; tips of mandibles blackish ; antennae scarcely longer than the head and thorax, piceous, the basal joint rufous. Thorax fuscous ; mesothorax with a dorsal longitudinal carina, on each side of which the surface is trans- versely striated, near each side in front a longitudinal ferruginous stripe; pectus striated, pleura finely rugose, smoother immediately be- neath the wings ; scutellum rugose, mostly ferruginous, the spaces on each side deeply excavated and rugose; metathorax fuscous, strongly rugose or densely and coarsely reticulated; tegulae yellowish. Wings obscure hyaline, slightly dusky at tips ; nervures and stigma fuscous. Legs pale ferruginous ; the posterior pair, except coxse, more or less fuscous ; the four anterior tarsi and the tibiae, slightly dusky. Abdo- men dark fuscous, base of the 1st and the 4th segments, sometimes ob- scurely, ferruginous ; the three basal segments linear and subcylindric, the 1st segment somewhat swollen at the tip, the remaining segments broader and subcompressed ; ovipositor exserted about two lines, yellow or ferruginous, valves fuscous. Length 4 lines; expanse of wings 4£ lines. Male. — Rufo-ferruginous ; the orbits, dilated on each side of the face, and the tegulae, yellow ; mesothorax not so distinctly sculptured as in the 9 , but more irregularly rugose, with the lateral stripes obsolete ; legs ferruginous, the two anterior pair .tinged with yellowish; posterior trochanters, tips of their femora and tibiae and the tarsi entirely, fus- cous; abdomen blackish-fuscous, the basal half of the 1st and the 4th and 5th segments entirely, pale ferruginous; same size as 9 • Collection. — Ent. Soc Philad. 2 9 , 1 % . specimens. Trachynotus basalis, n. sp. Black, slightly varied with fuscous ; orbits, mouth, two lines on mesothorax, 1865.] 51 tegulee, scutellum, tip of metathorax, 4 anterior legs, and extreme base of ab- domen, ferruginous ; wings hyaline, iridescent. Male. — Black, sculptured like the preceding species, but more finely; orbits, clypeus, mandibles and palpi, pale yellowish ; antennae blackish, the basal joint beneath yellowish. v Thorax black ; a short line on each side of the mesothorax in front, tegulae, a spot before and another be- neath the anterior wing, the scutellum and the tip of the metathorax, ferruginous. Wings hyaline and beautifully iridescent ; nervures and stigma fuscous. Legs : the two anterio pairs, with their cox;», ferru- ginous, tinged with yellowish in front; posterior pair fuscous, tips of their coxae ferruginous. Abdomen blackish-fuscous, the middle seg- ments somewhat paler; basal half of the 1st segment yellow. Length 3 lines ; expanse of wings 4 lines. Collection. — Dr. J. Gundlach. One specimen. This may be a dark % variety of T. fuscatus. Genus CREMASTUS, Grav. Cremastus luctuosus, n. sp. Black ; mouth, tegulfe and four anterior legs, white; apex of abdomen slightly stained with ferruginous : wings hyaline, iridescent. Male. — Black, clothed with a thin, appressed, very fine, whitish pu- bescence, more obvious on the face, where it is somewhat silvery ; most of mandibles and the palpi, white ; antennae more than half the length of the body, blackish. Thorax very minutely punctured, the mesotho- rax opaque and glabrous; pleura slightly shining, with a striated space beneath the anterior wings ; tegulae white ; scutellum rather large, flat- tened and pubescent; metathorax pubescent, the elevated lines distinct, enclosing on each side of the middle a large, irregular space, leaving a long, narrow, depressed space on the disk. Wings hyaline, with a purple iridescence ; nervures and stigma black. Legs : the two ante- rior pairs, with their coxae, white ; the middle femora beneath, except at base, black ; posterior legs black, the extreme base and apex of their femora whitish. Abdomen elongate, slender, black; beyond the 2nd segment, gradually broader and much compressed; apical third of the 4th and the ventral segments, pale ferruginous. Length 4 lines; ex- panse of wings M lines. Collection. — Dr. J. Gundlach. One specimen. This species makes an oval cocoon, 2 \ lines long and \\ broad, of a dirty white color, with a narrow, tolerably regular, median, black band, and a spot on each end near which there is a row of large irregular spots, sometimes confluent, also black. 52 [January EIPHOSOMA. nov. gen. (Fig. 5.) Head transverse, wider than the thorax ; face flat ; clypeus small, slightly prominent, rounded in front; mandibles, moderate, broad; eyes large, ovate, entire; ocelli placed in a triangle on the vertex; front ex- cavated behind the antennae ; palpi long \and slender. Antennae moderate, rather slender, longer in the % ; basal joint short, globose, obliquely truncate exteriorly, re- ceiving the 2nd and 3rd joints, the 3rd minute; 4th joint long, the 5th and 6th subequal, each shorter than the 4th, re- maining joints gradually shorter, the terminal joint as long as the two preceding joints, acuminate at tip. Thorax gibbous, short and nar- row; mesothorax with the middle lobe prominent; scutellum suborbic- ular, more or less convex ; metathorax moderate, its face oblique, with a deep longitudinal central groove. Wings moderate ; stigma slender ; areolet minute, oblique, or wanting. Legs slender, the two anterior pairs short; posterior pair very long, their femora slightly thickened, with a short, stout, acute tooth beneath near the tip; all the coxte short and robust, the trochanters elongate, the four anterior femora long, slender and slightly recurved ; tibiae slender, gradually thickened to- wards the tips, the spurs long, those at the tips of the four anterior tibiae unequal, those <>u the posterior pair equal in length; tarsi slender, the claws very small, apparently simple, pulvilli large. Abdomen very long, slender, shaped somewhat like an inverted cimeter ; two basal seg- ments long and linear, second rather the longest; remaining segments broad and much compressed; apex obtuse in the % , truncate in the 9 , the ovipositor sometimes short and sometimes moderately long, the sheaths pubescent, thickened at tips, sometimes apparently proceeding from the superior portion of the ventral valve, as represented in the figure. This genus may be known by the long, slender, compressed abdomen, shaped somewhat like an inverted cimeter, and the long posterior legs, with their femora toothed beneath near the tips. It seeu>s to be closely allied to Oremastus and also to Angitia Holmgren, but differs from both genera principally by the toothed posterior femora. Eiphosoma atrovittata, n. sp. Yellow; posterior legs and abdomen dull honey-yellow; three lines on meso- thorax, three on metathorax and an oblique one on pleura, black ; wings hya- line, tips fuscous, areolet minute, oblique and petiolated. Female. — Head yellow, tips of mandibles and a spot on vertex cover- 1865.] 53 ing the ocelli, brown; antennae more than half the length of the body, blackish, the two basal joints yellowish. Thorax yellow, shining; me- sothorax with three broad, longitudinal, black stripes, the central one entire, the lateral ones abbreviated, before and behind where they are somewhat rufous ; on each side of the pleura, an oblique, black, de- pressed line ; scutellum yellow, convex and polished ; metathorax yel- low, with three longitudinal black lines, the central one depressed and broadest, the lateral ones interrupted towards the base. Wings hyaline, slightly iridescent, the extreme tips fuscous; nervures and stigma black; areolet minute, narrow, oblique, petiolated. Legs pale honey-yellow, the four anterior coxae yellow; the posterior pair dull honey -yellow. Abdomen very long and slender, dull honey-yellow, the 1st segment yellow at base ; a 'line on the disk of the 2nd segment, almost reaching the tip, and a spot at the base of the 3rd segment above, black; sides of the 4th, 5th and fith segments sometimes stained with fuscous; ovi- positor exserted about 2 lines, rufous, valves black. Length 7 lines; expanse of wings 7 2 lines. Collection. — Ent. Soc. Philad. Two specimens. A 9 variety in the Collection of Dr. Grundlach is smaller, much paler in color, and the lateral black lines of the metathorax are not inter- rupted. Eiphosoma vitticollis. n. sp. Yellow; antennas, three lines on mesothorax. a central one on metathorax, base and apex of posterior tibiae and their tarsi black, their femora fulvous: abdomen slightly tinged with fulvous, the narrow dorsal surface blackish : wings hyaline, areolet minute, oblique, petiolated. Female. — Head yellow, faintly tinged with fulvous ; tips of mandi- bles, large spot on vertex enclosing ocelli, and two spots on occiput be- hind the ocelli, blackish; antennae rather more than half the length of the body, blackish, the two basal joints yellowish. Thorax yellow, shining ; mesothorax lobed in front, sparsely punctured, polished, with three broad, longitudinal stripes, the central one entire, broadest in front, the lateral ones abbreviated in front where they are broadest and rounded ; pleura entirely yellow ; metathorax yellow, polished, with a slight transverse carina near the base, angular before the central longi- tudinal sulcus which is black and rather deep. Wings hyaline, faintly tinged with fuscous, slightly iridescent; nervures and stigma fuscous; areolet minute, oblique, petiolated. Legs yellow; posterior legs very long, their femora fulvous, dusky near their base, their tibiae yellow, black at base and apex, as well as their tarsi, tibial spurs yellowish. Abdomen very long and slender, yellowish-fulvous; two basal segments 54 [January linear, the 2nd somewhat flattened, the other segments gradually broader and much compressed towards the apex which is truncate; narrow dorsal surface of the second and following segments, black ; ovipositor exserted about 3 lines, rufous, valves black. Length 7 lines; expanse of wings 8 lines. Collection. — Ent. Soc. Philad. 2 9,1 S, specimens. Readily distinguishable from the preceding species by the metathorax having only a central black line, and by the different color of the hind legs. Eiphosoma annulata. n. sp. Yellow; vertex, occiput, antennae, three stripes on mesothorax, sutures of and an oblique line on pleura, three lines on metathorax, spot on posterior coxae, their trochanters, base of their femora, and their tibiae and tarsi, black or black- ish ; abdomen tinged with ferruginous, apical half of the 1st and most of the 2nd segments dusky in 9 • all the segments annulated with blackish in £ ; wings hyaline; areolet minute, petiolated. Female. — Head yellow ; a large spot on the vertex enclosing ocelli and most of the occiput, black ; antennae rather more than half the length of the body, blackish, the two basal joints yellowish. Thorax yellow, sometimes tinged with ferruginous, shining; mesothorax densely and finely punctured, with three broad, longitudinal, black stripes, the central one entire, the lateral ones abbreviated in front; pleura with an oblique, rather broad, black, depressed stripe on each side, confluent with a rather large black spot beneath the wings, which is again con- fluent with a black stripe extending down on the suture between the pleura and pectus; the suture between the pleura and metathorax also blackish; scutellum convex, polished, yellow, the space around it black- ish; metathorax yellow, black at base, rather broadly and deeply exca- vated on the disk, the excavated space black, as well as a stripe on each side, broad at base, and abbreviated posteriorly ; on each side at base there is a semicircular carina, not well defined. Wings purely hyaline, iridescent; nervures and stigma fuscous; areolet minute, petio- lated, slightly oblique. Legs yellow ; posterior coxas yellow, with a large exterior black spot, their trochanters black, yellowish at tip, their femora fulvous, blackish at base and near the tip, their tibiae and tarsi blackish, the former with a pale annul us about the middle. Ab- domen very long and slender, honey -yellow; apical half of 1st segment, except extreme tip, the 2nd segment except tip and lateral middle, and disk of the 3rd segment obscurely, dusky ; ovipositor about half the length of the abdomen, rufous, valves blackish. Length 5 lines; ex- panse of wings 5 s lines. 1865.] 55 Male. — Colored like the female, except that the 3rd and following segments of the abdomen are broadly annulated at base with blackish. Collection. — Ent. Soc. Philad. 2 $ , 1 % , specimens. Prof. Poey informs me that this species is " parasitic upon a larva of Pyralis" Eiphosoma nigrovittata, n. sp. Bright yellow; abdomen and hind legs honey-yellow: three stripes on mew- thorax, an oblique line on pleura and a short one on disk of metathorax, black ; wings hyaline, iridescent, areolet wanting. Female. — Head yellow, slightly tinged with fulvous; extreme tips of mandibles and a spot behind the ocelli, black ; antennae rather more than half the length of the body, brown-black, basal joint beneath yel- lowish. Thorax bright yellow, smooth and polished; mesothorax with three broad, longitudinal, black stripes, middle one entire, lateral ones abbreviated especially in front where they are dilated and rounded ; on each side of the pleura an oblique black stripe ; behind the scutel- lum an irregular black mark which extends, on each side, on the suture between it and the metathorax ; scutellum slightly convex and polished ; metathorax bright yellow, rather broadly sulcate longitudinally, with a broad, elongate black mark on the disk. Wings hyaline, iridescent, extreme apex fuscous; nervures and stigma black. Legs yellow, tinged with fulvous, the posterior pair honey-yellow, their tarsi slightly obfus- cated, their femora somewhat swollen towards the tip, near which be- neath there is a small tooth. Abdomen long and slender, honey-yellow, the two basal segments long and linear, the remaining segments broad and much compressed, the apex truncate; the extreme base and a line on the sides of the 1st, a line on the disk of the 2nd not reaching the tip, and a spot at the base of the 3rd segment above, black ; sides of some of the apical segments stained with fuscous; ovipositor nearly half the length of the body, honey-yellow, valves black. Length 5| lines; expanse of wings 6 lines. Collection. — Ent. Soc. Philad. One specimen. Genus OPHION. Fabr. Ophion thoracicus, n. sp. Obscure yellowish; mesothorax with blackish stripes; two basal segments of abdomen tinged with ferruginous ; wings obscure hyaline, 1st submarginal cell with a spot and two subobsolete lines. Obscure yellowish, slightly stained with pale fulvous; antennae slen- der, about as long as the body, sometimes more or less dusky, especially at base; mesothorax with three broad, more or less distinct, blackish, longitudinal stripes, sometimes obsolete behind ; scutellum slightly 56 [January tinged with pale yellow ; metathorax tinged with piceous. with a well defined, transverse carina near the base and a longitudinal one on each side ; before the transverse basal carina the surface is almost smooth, behind, it is somewhat transversely rugose, and slightly excavated down the middle. Wings hyaline, faintly iridescent ; nervures and stigma yellowish ; first submarginal cell with a rather large, subtriangular, membraneous spot beyond the middle, and towards the tip of the cell two membraneous lines, the middle one is short and longitudinal, and the apical one transverse, rather oblique, pointing inwards, and some- times subobsoletely curved around to the tip of the large subtriangular spot. Legs obscure yellowish, tips of the tarsi more or less dusky. Abdomen shining, with the two basal segments linear, about equal in length and slightly dilated towards the tip, remaining segments gradually broader and compressed ; all the segments more or less stained with dusky. Length 12 lines; expanse of wings 18 lines. Collection. — Ent. Soc. Philad. Two specimens. This species is easily distinguished from the three following by its large size, and by the three blackish stripes on the mesothorax. Ophion concolor. n. sp. Pale fulvous; the head, pleura, and scutellum, more or less tinged with yel- low; wings hyaline, iridescent; 1st submarginal cell with a rather large, sub- triangular, membraneous spot, and a little beyond it a minute, subobsolete spot. Uniform pale fulvous, shining; head sometimes yellowish; antennae longer than the body, uniform pale fulvous ; mesothorax sometimes with faint, narrow, pale, longitudinal lines ; pleura sometimes subobso- letely spotted with yellow, and the scutellum always more or less tinged with yellow ; metathorax finely rugose, with a well defined transverse carina near the base, between which the surface is smooth and shining. Wings hyaline, iridescent ; nervures and stigma pale fulvous ; first submarginal cell with two membraneous spots, the inner one rather large and subtriangular, its lower point prolonged, the apical spot very small, sometimes slightly longitudinal, subobsolete. Legs uniformly pale fulvous. Abdomen shiniug, with the two basal segments linear, about equal in length and slightly dilated towards the tip. the second segment stouter than the first ; remaining segments gradually broader and compressed. Length 9 lines; expanse of wings 13 lines. Collection. — Ent. Soc. Philad. Four specimens. This is the second largest species, and is distinguished from the oth- ers, by being uniformly pale fulvous, and not varied with dusky. 1865.] 57 Ophion flavus, Fabr. Ichneumon flavus, Fabr. Ent. Syst. ii, p. 179. Ophion flavus, Fabr. Ent. Syst. Suppl. p. 236 : Syst. Piez. p. 131. Guer. Genera des Ins. Hymenopt. pi. 3, 2e liv.. No. 7 : LaSagra, Hist. Cuba, p. 753. Collection. — Ent. Soc. Philad. Three specimens. This is smaller than 0. concolor and may he at once distinguished from that species, by the apical segments of the abdomen being fus- cous. It is very closely allied to 0. cubensis, but slightly smaller, with the abdomen shorter and not so slender, and the membraneous spot nearest the tip of the first suhmarginal cell is very small and indistinct. Ophion cubensis. Norton. Ophion cubensis, Norton, Proc. Ent. Soc. Philad. i, p. 358. Collection. — Ent. Soc. Philad. One specimen. This species is closely related to 0. flavus, but is longer and more slender, and at once distinguished by the two very distinct membra- neous spots in the first submarginal cell. For the only specimen that I have seen of this species, the Society is indebted to the kindness of Baron R. Osten Sacken. Genus PANISCUS, Grav. Paniscus subfuscus. n. sp. Dull rufo-fuscous, legs and antennae paler; basal segments of abdomen pice- ous ; wings hyaline. Female. — Dull rufo-fuscous, opaque ; clypeus pale, pubescent ; an- tenna as long as the body, slender, dull fulvous, slightly dusky at tips. Thorax with the dorsal lines deeply impressed; scutellum prominent, carinated on each side; metathorax minutely sculptured, incised at base, with a small acute tubercle on each side behind. Wings hyaline; nervures fuscous, stigma testaceous ; areolet small, subpetiolated, oblique. Legs pale fuscous, the femora slightly dusky. Abdomen stout, arcu- ated, subcompressecl, clothed with a very short, appressed, pale pubes- cence; 1st segment elongate, slightly broader at tip, with a faint tuber- cle on each side before the middle ; 2nd segment about one-third shorter than the 1st; the three basal segments above, except the extreme base of the 1st, stained with piceous ; apical margins of the remaining seg- ments pale; ovipositor about as long as the 1st segment of the abdo- men. Length 9 lines; expanse of wings 15 lines. Collection. — -Ent. Soc. Philad. One specimen. This does not agree with the description of P. rufus Brulle, which I have not seen, and which is said to inhabit Cuba. 58 [January Subfam. Braconides. Division ? RHOPALOSOMA, nov. gen. (Fig. 6.) Head transverse; face flat; clypeus large, quadrate, truncate in front ; mandibles moderately stout, acute at tip ; palpi long and slen- der ; eyes rather large, prominent, reniform, deeply emarginate oppo- Fig. 6. site the insertion of the antennae ; ocelli large and prominent, placed in a triangle on the vertex. Antennse inserted on the middle of the face, nearly as long as the body, gradually slenderer towards the tip, 12- jointed in $ , 13 in % , first joint moderate, stout, second very short, third a little longer than first and second together, fourth and five following joints subequal, each longer than the third, remaining joints shorter, sub- equal. Thorax short, rather gibbous, smooth; meso- thorax convex ; pleura with a deep fovea in each side ; scutellum moderate, rather prominent ; metathorax moderate, convex, smooth, gradually smaller towards the insertion of the abdomen, around which the margin is prominent and somewhat reflexed. Wings rather long, narrow ; costal uervure slender ; stigma short, very narrow, linear ; marginal cell long, narrow, extending to the tip of the wing, sublan- ceolate ; two rather large, subequal. elongate submarginal cells, the second receiving the long, stout and very oblique first recurrent nervure about the middle, and receiving at its tip a very faintly defined, second recurrent nervure ; posterior wings with a few irregular nervures. Legs simple, long and slender; coxae robust; posterior trochanters short, 2- jointed; femora slightly thickened in 9, the anterior pair somewhat curved ; tibiae slender, about as long as the femora, the spurs very long, slender and acute, the two anterior tibiae apparently with only one spur at tip, the four posterior tibiae, each with two spurs at tip, the outer one the shortest ; tarsi 5-jointed, nearly as long as the femora and tibiae together, very slender in the % , flattened and dilated beyond the first joint in the 9 • pubescent, with a long lobe on each side at tip, and from each lobe proceeds one or two long setae ; tarsal claws, stout and bifid. Abdomen elongate, petiolated, smooth, inserted just above the base of the posterior coxre ; first segment nearly as long as the remain- ing segments together in the 9 , shorter in the % , slender at base and gradually swollen beyond the middle, much more strongly so in the % ; remaining segments together broadly fusiform, slightly incurved at tip in the 9 . 1865.] 59 This anomalous genus is readily recognized by the narrow wings, and the elongate fusiformly-clubbed abdomen, the basal segment of which is slender and as long, or nearly as long, as the remaining seg- ments which are broadly fusiform. I am, at present, unable to define the true position of this remarka- ble genus. It seems to form a connecting link between the Ichneumones genuini and the adsciti; from the former it differs by the paucity of the antennal joints, and from the latter by the anterior wings having a faint indication of a second recurrent nervure. Its structure places it, beyond doubt, in the family Ichneumonidfe, while its general appear- ance, together with the arrangement of the wing-veins, seems to place it among the Adsciti, where I will allow it to remain for the present. Rhopalosoma Poeyi. n. sp. % 9 . — Entirely of a uniform pale honey -yellow, smooth and polished ; tips of the mandibles black; vertex, and the apex of the abdomen more or less dusky, especially in the % , and in one % specimen the metatho- rax and abdomen are almost entirely tinged with dusky ; tarsal claws dusky ; wings hyaline, slightly iridescent, nervures pale fuscous. Length, 9 6 lines, % 4A lines; expanse of wings, 9 8J lines, % i)\ lines. Collection. — Ent. Soc. Philad. and Dr. J. Gundlach. Three 9 , two % specimens. It gives me much pleasure to dedicate this singular insect to Prof. Felipe Poey, to whom I am greatly indebted for much valuable infor- mation regarding the habits of many Cuban Hymenoptera. CHAONIA, nov. gen. Head transverse; face flat, broad; eyes large, prominent, rounded; ocelli large and prominent; clypeus moderate, slightly prominent, rounded at base and truncate at tip ; mandibles small, bifid and acute at tip; palpi very long and slender. Antennse, distant, inserted high up on the front close to the eyes, long and thread-like, multiarticulate, the basal joint moderately long and robust, the second minute, the other joints indistinct and finely pubescent. Thorax gibbous, rather short, deep, compressed, narrowed in front; mesothorax with the lobes very prominent; sides of the prothorax with a broad, longitudinal, shallow groove ; pleura large, very protuberant beneath between the four ante- rior coxse, and divided by a more or less deep longitudinal sulcus; scu- tellum elongate, rather prominent; metathorax moderate, somewhat rounded above, obtuse behind. Wings long and rather narrow; stigma large and sublanceolate ; marginal cell large, elongate, broad at base and gradually tapering to the tip of the wing; two submarginal cells. 60 [January the first much the largest, irregularly shaped, the second elongate-sub- quadrate, about one-half the size of the first. Legs long and slender; coxae elongate, robust, the posterior pair much the longest; trochanters nearly as long as the coxa? ; femora long and slender, the anterior pair somewhat recurved, the two posterior pair slightly thickened towards the tips; tibiae slender, gradually thickened towards the tips, the two anterior pairs about as long as their femora, the posterior pair stouter and much longer than their femora; tibial spurs rather long, subequal, robust ; tarsi slender, the posterior pair rather stout at base, the first joint as lon»- as the remaining joints taken together, which are gradually shorter towards the tip; claws small, stout at base, suddenly hooked and acute at tip, pulvilli small and pubescent. Abdomen elongate, slender at base, and gradually thickened towards the tip, which is broader and subcompressed in the 9 ) first segment long and subcylindrieal, slightly thickened at tip. with a stout tubercle on each side just before the middle ; second and third segments together rather longer than the first, somewhat depressed; remaining segments short, compressed in the 9 j and rather depressed in the S ; ovipositor of the 9 long. This genus belongs to the Endodontes of Wesmael, which have the teeth of the maudibles directed inwardly, and the maudibles meeting together when shut; but it cannot be referred to any of the four divi- sions enumerated by him. It agrees with the Areolarii in having the head transverse, the clypeus entire and the vertex emarginate behind, but the second submarginal cell of the anterior wings is moderately large. The neuration of the wings is similar to that of Bracoii, except that the first submarginal cell is larger, of an irregular pentagonal shape, while the second is smaller and not so long as in the latter genus. Chaonia xanthostigma, n. sp. Female. — Elongate, slender, dull honey-yellow; head pale yellowish, shining; clypeus slightly prominent, entire; mandibles fuscous at tips; palpi pale yellowish; antennae longer than the body, very slender, espe- cially so at tips, dark fuscous, two basal joints dull yellowish. Thorax narrow; prothorax dull yellowish, narrow in front, broader on each side, extending back to the tegulre ; mesothorax dark fuscous, shining, with the lobes very prominent, especially the middle one. the sutures indis- tinctly crenulated and paler; scutellutn dull honey-yellow; pleura large, fuscous, shining; metathorax fuscous above, pale on the sides, covered with irregular transverse striae ; tegulae yellowish. Wings subhyaline. slightly iridescent, tinged wiMi pale fuscous towards the apex; ncrvures fuscous, stigma large and orange-3'ellow; neuration much as in Bracon. 1865.] 61 Legs long and slender, the posterior pair stouter and much longer than the two anterior pairs, dull yellow, the posterior coxae and femora tinged with ferruginous, their tibiae long and subcompressed. their tarsi thick- ened; all the trochanters very elongate, the basal articulation much the longest. Abdomen dull honey-yellow ; basal segment more than one- third the length of the abdomen, linear, subcylindric. slightly thickened at tip, tinged with fuscous above, slightly channelled down the middle and with a robust tubercle on each side before the middle ; ovipositor longer than the body, dull rufous, valves dark fuscous. Length of body 6 lines, of ovipositor 7 lines; expanse of wings 10 lines. Male. — Much smaller than the 9 , and pale honey-yellow ; the an- tennae, except the two basal joints, dark fuscous as in the 9 ; the abdo- men more slender, and scarcely broader at tip. Length 4-i lines; ex- panse of wings GjV lines. Collection. — Dr. J. Grundlach. Two specimens. Chaonia pallida, n. sp. Male. — Entirely and uniformly pale yellowish ; metathorax trans- versely striated ; legs very slender ; wings purely hyaline, beautifully iridescent, the nervures very pale ; abdomen elongate, slender at base, gradually broader and depressed towards the tip, which is rounded. Length 4 lines; expanse of wings 6 lines. Collection. — Dr. J. Grundlach. One specimen. Resembles the % of the preceding species in form, but is at once dis- tinguished by the very pale uniform color and the pure hyaline wings. Division. — Cri/p togastri. Genus CHELONUS. Jurine. Chelonus insularis, n. sp. Black, densely sculptured : legs varied with obscure testaceous; a more or less distinct pale spot on each side of the abdomen near its base ; wings hya- line, tin' apical half faintly dusky. Opaque black, finely and densely rugose or shagreened, with a very short, fine, whitish, sericeous pile, more obvious on the face and when viewed in certain lights; head transverse, face broad and flat, mouth tinged with piceous ; antenna? about as long as the head and thorax, black; tegulae shining black; postscutellum smooth and polished; me- tathorax with several ill-defined longitudinal carina?, the posterior an- gles rather long and acute. Wings hyaline, the apical half faintly tinged with dusky ; nervures fuscous, stigma black, emarginate near the base beneath. Legs black, the femora, tibiae and tarsi more or less varied with obscure testaceous. Abdomen slightly dilated towards the tip which is broadly rounded, the basal angles rather acute, and on each (52 [January side near the base a more or less distinct pale spot, sometimes large and subtriangular. Length '2h lines; expanse of wings 5 lines. Collection. — Ent. Soc. Philad. Four specimens. Division. — Areolarii. Genus AGATHIS, Latr. Agathis cubensis, n. sp. Rufous; head, antennae, four anterior legs, and tips of posterior tibiae, black: wings dark fuscous, with two hyaline spots beneath the stigma ; rnetathorax coarsely rugose. Female. — Rufous, polished, slightly pubescent; head black, face pro- longed and slightly tinged with rufous; antennae longer than the bead and thorax, stout, black, tinged with piceous towards the tips. Thorax polished ; mesothorax with the lobes very prominent, each one with a broad, shallow, longitudinal central groove; the sutures beneath crenu- lated ; rnetathorax coarsely rugose, with several sharply denned, longi- tudinal carinas, pubescent, the extreme sides smooth and polished ; tegulae rufous. Wings uniform dark fuscous, with two small hyaline spots beneath the stigma ; nervures black. Legs robust, rufous ; the four anterior trochanters, femora and tibiae, and the tips of the posterior tibiae, black. Abdomen short, subovate, subcompressed, smooth and polished, sometimes slightly tinged with dusky towards the apex; basal segment depressed on each side about the middle ; ovipositor a little shorter than the abdomen, rufous, valves black. Length 4J lines; ex- pause of wings 10 lines. Male. — Resembles the female, with the face more rufous. Collection. — Ent. Soc. Philad. Two $ , one £ , specimens. Agathis ferrugator, n. sp. Pale rufous, shining ; antennae, trochanters, tips of posterior femora and tibiae, and their tarsi, black; wings fuscous, slightly hyaline beneath the stigma. Female. — Pale rufous, shining, slightly pubescent; face much pro- longed, Avith an impressed point on each side beneath the eyes ; palpi dusky ; antennae nearly as long as the body, involute at tip, black or piceous, the basal joints sometimes rufous. Thorax shining, indistinctly punctured; lobes of the mesothorax distinctly defined, each lobe with a broad groove down its middle, that on the ceutral lobe slightly cate- nated; rnetathorax with several sharply defined longitudiual and trans- verse carinae, forming several small cells ; tegulae pale rufous. Wings fuscous, with two hyaline spots beneath the stigma ; nervures and stigma blackish. Legs rufous, the posterior pair robust; posterior tro- chanters, extreme tips of their femora, base and apex of their tibiae and most of their tarsi, more or less blackish. Abdomen oblong, subcom- 1865.] 63 pressed, shining, with a slight tubercle on each side near the base of the first segment, which is smooth and slightly convex; second segment somewhat depressed; ovipositor rather longer than the abdomen, rufous, valves blackish. Length 3 — -4 lines; expanse of wings 5i — 6j lines. Male. — Resembles the female, with the face slightly dusky on each side beneath the eyes, the antennas stouter and entirely black, as well as all the trochanters. Collection. — Dr. J. (iundlach. Two $ , one % , specimens. Agathis seminiger, n. sp. Rufous : head, antennae, mesothorax, pectus, pleura, scutellum, and four an- terior legs, black ; wings pale fuscous ; metathorax large, carinated, posterior angles produced on each side into a tubercle. Female— -Head black, with a faint bluish reflection, polished, pube- scent ; face prolonged; palpi and antennae black, (the latter broken off beyond the middle). Thorax polished, slightly pubescent, black, with a faint bluish reflection ; dorsal lines of mesothorax deeply impressed, the central lobe carinated down its middle ; pleura feebly punctured, sides of pectus obscurely tinged with rufous ; scutellum black ; meta- thorax large, quadrate, prominent, pale rufous, slightly pubescent, coarsely rugose, with several well defined longitudinal carinas, the pos- terior angle produced on each side into a prominent obtuse tubercle ; tegulas piceous, slightly tinged with rufous. Wings uniform pale fus- cous, with two hyaline spots beneath the stigma ; nervures and stigma blackish. Legs black, tinged with piceous, slightly pubescent; poste- rior pair robust, pale rufous, their trochanters and tarsi piceous. Ab- domen rather short, broadly subcompressed. smooth and polished, pale rufous ; first segment with a tubercle on each side towards the base ; ovipositor as long as the abdomen, pale rufous. Length Al lines; ex- panse of wings 9 lines. Collection. — Dr. J. Grundlach. One specimen. Agathis albitarsis, n. sp. Deep black, polished; posterior tarsi whitish: wings uniformly dark fuscous; metathorax striated transversely; ovipositor long, rufous, sheaths black. Female. — Deep black, polished, slightly pubescent, most obvious on the face; eyes very prominent, face prolonged into a beak and tinged with rufous towards the tip ; palpi piceous ; antennas nearly as long as the body, curved at tip, brown-black, finely pubescent, the basal joint black, polished. Thorax: mesothorax trilobed, the middle lobe cana- liculate, the lateral margins carinated ; pectus and pleura polished, the sutures of the latter crenulated, and beneath the wings an oblique row of transverse carinas; scutellum deeply excavated in front; metathorax (54 [January sharply and transversely striated, with two longitudinal approximate carinas on the disk, and two more distant ones on each side, the extreme sides reticulated. Wings uniformly dark fuscous, with a rather strong bronze reflection, slightly subhyaline in the first submarginal cell and below it; uervures and stigma blackish. Legs black, sometimes tinged with piceous. pubescent; posterior tarsi, except extreme tips, whitish. Abdomen polished, sub compressed ; first segment elongate, slightly dilated towards the tip, base deeply excavated, flattened towards the tip with a faint carina down the middle; venter piceous, the tip gaping, the ovipositor rather longer than the abdomen, rufous, the sheaths black. Length 5} lines; expanse of wings 10 lines. Male. — Like the female, except that the antennae are longer than the body, the four anterior legs entirely piceous and the abdomen more slender. Collection. — Eut. Soc. Philad. Three $ , one % , specimens. Easily recognized by the deep black color, with the posterior tarsi white. Genus MICRODTJS. Nees. Microdus fascipennis. n. sp. Yellow, varied with honey-yellow: eyes, vertex, occiput and antennee, black: wings yellowish-hyaline, with a fuscous band across the middle and the apical fourth. Female. — Yellow, more or less tinged with honey-yellow, shining, slightly pubescent; eyes rounded, black, as well as the tips of the man- dibles, the vertex and the occiput anteriorly; antenna: black, (tips broken off). Thorax yellow, shining, indistinctly punctured; meso- thorax pale honey-yellow, the dorsal lines deeply impressed, the middle lobe broadly grooved with a faint longitudinal carina on the middle; pectus and pleura polished ; metathorax with sharply defined elevated lines forming several irregular areas, the central one of which is rather small and elongate. Wings long and ample, yellowish-hyaline; a broad band across the middle and the apical fourth, pale fuscous; just below the stigma in the first submarginal cell, a subtriangular hyaline spot, and another one below it near the posterior margin of the wing ; uer- vures yellowish, the stigma and the uervures covered by the fuscous bands, blackish. Legs entirely yellowish, the posterior coxas honey- yellow, (their femora, tibiae and tarsi broken off) ; tarsal claws dusky. Abdomen short, not longer than the thorax, broad and subcorn pressed towards the apex, polished; first segment gradually dilated, smooth, with faint indications of lateral tubercles near the base; apical segments 1865.] 65 slightly obfuscated ; ovipositor very short, scarcely exserted. Length 41 lines; expanse of wings 10$ lines. Collection. — Ent. Soc. Philad. One specimen. Microdus stigmaterus, n. sp. Rufous: head and antennae black; wings fuscous, stigma yellow, with a hy- aline patch beneath it, the base of the anterior wings subhyaline; basal segment of abdomen striated; ovipositor longer than the body. Female. — Rufous, shining, thinly clothed with a fine whitish pube- scence ; head transverse, black, face short, not prolonged, tinged with piceous, as well as the mouth ; palpi pale ; antennae longer than the head and thorax, rather stout, rufo-piceous. Thorax polished ; lobes of the mesothorax prominent, indistinctly punctured ; pleura minutely and closely punctured ; metathorax rugose, pubescent, with several in- distinct longitudinal carina) ; tegulse rufous. Wings fuscous; base of the anterior pair subhyaline ; stigma pale yellow, with a rather large hyaline patch beneath it ; nervures fuscous. Legs stout, rufous ; the four anterior femora, except tips, apex of the four posterior tibiae, and most of the tarsi, more or less dusky ; posterior coxae large, their femora thickened. Abdomen elongate, depressed above; basal segment except tip, longitudinally striated ; second or third segments incised at base, each with a broad, rather deep, transverse depression across the middle, that on the second segment finely striated, remaining segments smooth and polished ; extreme sides of the abdomen, from the base to the tip of the second segment, carinated; venter prominent towards the tip and subcompressed; ovipositor longer than the body, rufo-piceous. Length 5 lines ; expanse of wings 8 lines. Male. — Resembles the female, but is darker in color, and rather larger, with the abdomen more robust. Collection. — Ent. Soc. Philad. Two 9 ) 01ie £ , specimens. Easily recognized by the conspicuous yellow stigma of the anterior Microdus varipes, n. sp. Rufous; antennse, four anterior legs, and posterior trochanters, tibiae and tarsi, black; middle tarsi of "J,, white: wings fuscous; second abdominal seg- ment incised at base. Female. — Rufous, polished; head transverse, face short; antenna) as long as the body, piceous-black. Thorax smooth and polished ; lobes of the mesothorax well defined, the central lobe with a broad longitu- dinal groove on its middle; metathorax shining, with several ill-defined, longitudinal carinas, its extreme sides smooth and polished; tegulae ru- fous. Wings uniform dark fuscous, a slightly oblique hyaline streak 66 [January or two spots beneath the stigma; nervures and stigma blackish. Legs black, the four anterior coxae rufous at base ; posterior coxae, femora and tibiaa, except tips, rufous. Abdomen oblong-ovate, subdepressed, smooth and polished, the second segment deeply incised at base; ovipo- sitor about half the length of the abdomen, pale rufous, valves black. Length 3| lines; expanse of wings 7 2 lines. Male. — Resembles the female, except that the head is slightly dusky ; the wings somewhat paler; the middle tarsi white, except tips (the an- terior legs wanting), the posterior tibiae entirely dusky, and the third, fourth aud fifth segments of the abdomen also incised at base, although not so deeply as the second segment. Collection. — Ent. Soc. Philad. % , Dr. J. Gundlach $ . Two specimens examined. Genus MICROGASTER, Latr. Microgaster mediatus, n. sp. Pale rufous; antennae, most of pleura and the metathorax, black ; wings fusco- hyaline ; metathorax coarsely rugose, carinated ; abdomen depressed. Male. — Pale rufous, shining; antennae longer than the body, stout and flattened at base, gradually attenuated to the tips, black, basal joint rufous beneath. Thorax polished ; mesothorax smooth, without im- pressed lines ; pleura sometimes entirely rufous and sometimes almost entirely black, with a deep excavation on each side beneath; scutellum rufous, convex, the space on each side finely striated ; metathorax en- tirely deep opaque black, sometimes rufous at the base above, coarsely rugose, with several sharply defined, longitudinal carinas ; teguloe ru- fous. Wings f'usco-hyaline, varied with subhyaline, the apical third uniformly fusco-hyaliue ; nervures and stigma black, the latter rather large, and more or less pale at base; the inner half of the first submar- ginal cell subhyaline, or paler than the outer half. Legs pale rufous, sometimes orange-yellow ; tips of the posterior femora, and most of their tibiae and tarsi, blackish Abdomen ovate, depressed, polished, pale rufous, sometimes orange-yellow ; basal segment deeply excavated. Length 'Z\ — 3 lines; expanse of wings 5 — 5| lines. Collection. — Ent. Soc. Philad. Two specimens. Readily distinguished by the black metathorax, which is very con- spicuous in contrast with the rufous color. Microgaster flaviventris, n. sp. Blackish; abdomen and legs deep yellow ; thorax varied with dull rufous ; wings hyaline, iridescent. Female. — Head black, face tinged with rufo-piceous, palpi whitish ; antenna; nearly as long as the body, pale testaceous, tinged with fus- 1865.] 67 cous above, the base beneath yellowish. Thorax minutely sculptured, piceous, more or less varied with testaceous, especially on the sides ; scutellum piceous, triangular, with the excavation in front and the space on each side, striated ; metathorax pale piceous, minutely sculptured, with a central longitudinal carina, and another on each lateral margin ; tegulae yellowish-white. Wings ample, hyaline, iridescent ; nervures and stigma pale fuscous, the latter large and subtriangular ; marginal cell wanting ; one large irregular submarginal cell ; areolet incomplete ; one large triangular discoidal cell. Legs, including the coxae, eutirely yellow; tips of the posterior femora, tibiae and tarsi sometimes dusky. Abdomen depressed, rather shining, entirely orange-yellow, not dis- tinctly sculptured ; first segment narrowed at base, depressed, angular and carinated on the lateral margins ; ovipositor short, fuscous. Length 1} line; expanse of wings 2V lines. Collection. — Ent. Soc. Philad. Seventeen 9 specimens ; % not seen. Microgaster marginiventris, n. sp. Black; antennae fuscous; palpi, tegulfe, legs, and lateral margins of abdo- men, yellow; wings hyaline, iridescent. % 9. — Dull black, slightly pubescent; tips of mandibles and the palpi, yellowish ; antennae nearly as long as the body in 9 , longer in % , fuscous. Thorax dull black, opaque, densely and minutely punctured ; scutellum depressed, triangular, punctured, the excavation in front and the space on each side striated ; metathorax rugose, with a central lon- gitudinal carina and one on each lateral margin ; tegulae pale yellow- ish. Wings hyaline, iridescent, slightly pubescent; nervures and stigma pale testaceous ; no marginal cell ; a large irregular submarginal cell, more oblique than in flavlvoitrls; areolet wanting; a large subtrian- gular discoidal cell, more strongly petiolated from the costal nervure, than in tiaviventrls. Legs, including the coxae, yellow, more or less deep in color, the posterior tarsi dusky. Abdomen depressed, dull black, distinctly and roughly sculptured, the lateral margins and the apex more or less dull yellowish ; venter stained with yellowish ; ovipositor of 9 very short. Length 1\ line; expanse of wings 'Z\ lines. Collection. — Ent. Soc. Philad. Nine 9 , two % specimens. Microgaster Finos, n. sp. Black; an ten n e fuscous; palpi white; tegulae, legs, except posterior tibiae and tarsi, and middle of abdomen, yellowish ; wings hyaline, iridescent. Female. — Head black ; tips of mandibles piceous ; palpi white; an- tennae fuscous. Thorax dull black, densely and finely punctured, slightly pubescent; scutellum triangular, sparsely punctured, the excavation in front striated, the space on each side flat, smooth and polished, mar- 68 [January gined in front by a beautifully striated semicircle ; metathorax black, uneven, transversely and irregularly striated ; tegulae yellowish-white. Wings ample, hyaline, beautifully iridescent, slightly pubescent • ner- vures and stigma pale fuscous, the latter large ; the cells shaped much as in M. marginiventris, except that the discoidal cell is smaller in pro- portion to the size of the other cells. Legs, including the coxae, yel- lowish ; extreme tips of the tarsi, tips of the posterior femora, their tibiae and tarsi, fuscous. Abdomen depressed, slightly sculptured at base ; the first, part of the second and the apical segments, black, the rest yellowish ; ovipositor nearly as long as the abdomen, blackish. Length I} line; expanse of wings 34 lines. Collection. — Ent. Soc. Philad. One specimen taken on the Isle of Pines. Microgaster hyalinus, n. sp. Dull black; palpi, tegulse, tibiae and tarsi, pale yellowish; rest of legs fuscous; wings pure hyaline, veins indistinct. Female. — Dull black, opaque, clothed with short whitish pubescence; palpi whitish; antennae dark fuscous. Thorax finely and densely punc- tured ; scutellum triangular, polished, the side spaces smooth and po- lished, the sutures as well as the basal excavation, crenulated ; meta- thorax with several irregular, indistinct elevated lines ; tegulae pale yellowish. Wings ample, pure hyaline, iridescent; nervures and stigma hyaline, indistinct. Legs pale yellowish ; the coxae, trochanters, four posterior femora, tips of posterior tibiae and most of their tarsi, fuscous. Abdomen short and stout, depressed and very uneven, not distinctly sculptured, entirely dull piceous-black ; ovipositor short, thickened at tip. Length 1 line; expanse of wings 21 lines. Collection. — Ent. Soc. Philad. Three specimens. Microgaster iridescens, n. sp. Yellowish ; head, antennae, metathorax and most of posterior legs, piceous : wings hyaline, strongly iridescent. % 9 . — Yellowish, pubescent ; head piceous-black, mandibles testa- ceous, palpi whitish; antennae nearly as long as the body in $ , longer in % , fuscous, paler at base beneath. Thorax yellowish, closely and minutely punctured ; scutellum triangular, yellow, densely punctured, black at extreme tip ; postscutellum and metathorax piceous, the latter with several well defined elevated lines ; tegulae yellowish-white. Wings hyaline, with a strong greenish iridescence, slightly pubescent ; ner- vures and stigma pale fuscous ; cells shaped much as in 31. margini- ventris, except that the areolet is minute and nearly complete. Legs. including the coxae, pale yellowish; tips of the posterior femora, their 1865.] 69 tibiae except base, and their tarsi, dusky. Abdomen depressed, broader and subcompressed at tip. pale yellowish, the dorsal surface more or less stained with pale fuscous; ovipositor of 9 short, fuscous. Length 1 line; expanse of wings 2} lines. Collection. — Ent. Soc. Philad. Four specimens. Division. — Cyclostomi. Genus BR AC ON. Fabr. Bracon regnatrix, n. sp. Large: rufo-ferruginous; head, antennae and legs, except coxae, black; wings dark fuscous, with a broad band a little beyond the middle of anterior pair, and a quadrate spot towards the base of posterior pair, hyaline: abdomen elongate, subclavate, smooth ; ovipositor longer than the abdomen, black. % 9 . — Rufo-ferruginous, shining; head black, the face rugose, tinged with rufous, as well as the cheeks, a deep puncture just beneath the base of the antennae ; clypeus rufous, fringed with a pale pubescence ; mandibles and palpi blackish; antennae three-fourths the length of the body, black, brownish towards the tips. Thorax smooth and po- lished, the mesothorax sometimes darker in color than the rest of the thorax ; metathorax smooth and convex, with a deep, longitudinal, im- pressed line on each extreme side. Wings dark fuscous, slightly paler at tips; just beyond the middle of the anterior wing, a broad hyaline band, commencing at the base of the stigma, which has a slight whitish dot, and extending all the way across the wing, occupying almost the whole of the first submarginal cell ; this band is somewhat irregular, and the nervures divide it into three spots, of which the lower one is smallest, oblong and slightly oblique ; just within the middle of the posterior pair, a large, quadrate, hyaline spot. Legs black, tinged with piceous ; their coxae rufo-ferruginous, their trochanters rufous at tip. Abdomen elongate, convex, subclavate, smooth and polished; first and second segments with a deep longitudinal groove on each side, connect- ing at tip with a slightly oblique groove on each side of the second segment, running parallel with the sides of the segment; on each side of the third segment a rather deep oblique groove diverging posteriorly ; remaining segments smooth, without impressed lines; sometimes the abdomen is pale ferruginous, with the apical margins of the third and following dorsal segments and the apical ventral segments, rufous or sanguineous; ovipositor more than half again as long as the body, piceous. valves black. Length 8? lines; expanse of wings 16 lines. Collection. — Ent. Soc. Philad. Two 9 > one £ , specimens. This is a large, elegant species, easily recognized by the hyaline spots on the wings. 70 [January Bracon lativentris, n. sp. Rufous; head, antennae, legs and ovipositor, black; wings fuscous, with a hy- aline dot at tip of first submarginal cell; abdomen short and very broad, rotun- date, deeply incised, the second segment with a very deep triangular excavation on each side ; ovipositor as long as the body. Female. — Rufous, polished ; head black, densely clothed with pale pubescence; each mandible with a pale spot; palpi blackish; antennae as long as the body, piccous, basal joint black. Thorax very smooth and polished; ruesothorax with the dorsal lines well impressed in front; metathorax smooth and shining, clothed with a pale pubescence, a shal- low depression on the middle of the posterior part, and a somewhat deep excavation on each extreme side; tegula? blackish, margined with rufous. Wings uniform dark fuscous; a subhyaline streak along the inner margin of the first submarginal cell, ending in a hyaline spot just below the tip of the cell; nervures and stigma black. Legs, including the coxas, black, tinged with piceous, pubescent, the base of coxae, and tips of trochanters, obscurely rufous ; sometimes the auterior tarsi and the four posterior tibiae and tarsi are somewhat brownish. Abdomen short and very broad, nearly as broad as long, subrotundate, polished ; basal segment gradually dilated, convex on the disk and excavated on each side and at base ; second segment suddenly dilated, with a very deep triangular excavation on each side at base, and on the disk a shal- low excavation with an obtuse longitudinal carina down the middle of it ; third segment with an oblique very deep incisure on each side ; fourth and fifth segments deeply incised at base; remaining segments much narrowed, the apical one flattened on the disk, tinged with pice- ous and fringed with a pale pubescence; venter deeply concave; ovipo- sitor as long as the body, rufous, valves black. Length 5| lines; ex- panse of wings 11 lines. Collection. — Ent. Soc. Philad. Two 9 specimens. Easily recognized by its large and very broad abdomen. Bracon crenulatus, n. sp. Dark rufous, shining; head, antennae and legs, black; wings blackish fuscous; abdomen broadly ovate, the segments deeply incised and striated at base, second segment deeply excavated on each side and on the middle; ovipositor moderate. Female. — Dark rufous, polished ; head globose, black, clothed with black pubescence, palpi black; antenna? longer than the body, entirely black. Thorax: dorsal lines of mesothorax scarcely defined; pleura and scutellum smooth and polished ; metathorax convex, smooth and polished, slightly pubescent; tegulae rufous, with a large blackish spot. Wings uniformly blackish-fuscous, slightly subhyaline in and below the first submarginal cell ; nervures and stigma black. Legs, including 1865.] 71 their coxae, entirely black, slightly pubescent ; posterior coxae slightly rufous at base. Abdomen broadly ovate, polished, depressed; first seg- ment deeply excavated at base and on each side, with a swelling on the middle, on the disk of which there is another excavation divided by a longitudinal carina, the excavation on each side of the swelling has a slight longitudinal carina, the lateral margins are carinated and reflexed, the apical angles being very prominent ; second segment deeply and transversely excavated on each side at base, and on the middle a deep rounded excavation slightly striated and divided by a longitudinal ca- rina which proceeds from an elevated polished space on the basal mid- dle, the apical margin of this segment suddenly rounded on each side, behind which the basal angles of the third segment are prominent or tuberculated ; third segment deeply incised and striated at base, the incisure passing both before and behind the prominent basal angles ; fourth and fifth segments also deeply incised at base, the incisure striated ; remaining segments suddenly narrowed, the terminal one pilose; venter concave ; ovipositor shorter than the abdomen, rufous, valves black. Length 3J — i lines; expanse of wings 85 — 10 lines. Collection. — Ent. Soc. Philad. Two 9 specimens. Much smaller than B. lativentris, with the basal incisure of the third abdominal segment distinctly striated. Bracon voraginis, n. sp. Rufous; head, antennae and legs, black; wings fuscous; abdomen broad, with a deep excavation on each side of the second segment and a smaller one on each side of the third segment; ovipositor longer than the abdomen. female. — Rufous, shining; head globose, black, sometimes the sides of the face and the lower part of the cheeks are tinged with rufous; antennae as long as the body, dark fuscous, tinged with rufous at base. Thorax polished; mesothorax distinctly lobed in front, the dorsal lines well impressed; pleura with a puncture and a deeply impressed, oblique furrow beneath the wings; metathorax small, smooth, polished and con- vex above, slightly pubescent, on each side a deep, longitudinal im- pressed line ; tegulae rufous. Wings uniformly dark fuscous, with a large hyaline spot beneath the tip of the first submarginal cell, within which there is a subhyaline streak ; nervures and stigma fuscous Legs black, pubescent ; all the tarsi and base of the posterior coxae tinged with rufous. Abdomen broadly ovate, depressed, shining; first segment excavated on each side, with an acute, longitudinal carina in each ex- cavation ; second segment with a very large, deep, subtriangular exca- vation an each side at base, and an abbreviated carina down the middle of the segment, the apical margin is oblique on each side ; third seg- 11 [January ment also deeply excavated on each side, but not so largely as the second segment, the extreme basal margin is indistinctly crenulated ; the two following segments deeply incised at base; remaining segments abruptly narrowed, the apical segment depressed ; venter concave ; ovipositor longer than the abdomen, blackish. Length 2\ lines; expanse of wings 6 lines. Collection. — -Ent. Soc. Philad. Two specimens examined. Bracon plicatus, n. sp. Sanguineous: head, antennae, wings and legs, black: abdomen robust, deeplv incised, second segment excavated on each side and carinated down the middle, basal margin of third segment striated; ovipositor short. Female. — Head globose, entirely black, pubescent; palpi blackish; antennae longer than the body, black. Thorax sanguineous, smooth and polished, narrowed in front; dorsal lines of the mesothorax faintly impressed; pleura with an obliquely impressed line beneath the wings; metathorax smooth, convex, polished, pubescent ; tegulaa blackish, tipped with rufous. Wings black, with a faint subhyaline streak in the first submarginal cell, and a hyaline spot beneath its tip; nervures and stigma black. Legs, including the coxae, black ; the posterior coxae at base, and their trochanters at tip, rufous. Abdomen robust, polished, sanguineous, slightly pubescent; first segment broad at tip. the lateral angle produced into an acute tooth, disk of the segment con- vex, excavated on each side; second segment deeply excavated on each side at base, and the excavation extending somewhat obliquely inwardly to the basal middle which has a smooth elevated space, behind which there is a shallow rough excavation with an acute carina down its mid- dle, apical margin of the segment obliquely cut off on each side, behind which the basal angles of the third segment are prominent or tubercu- lated; third segment deeply incised at base, the incisure longitudinally striated, and passing behind the prominent basal angles to the lateral margin, posterior portion of the segment as well as ot the two following segments forming a very prominent transverse fold; fourth and fifth segments with their basal half flattened, the incised line at base and before the fold finely crenulated or indistinctly striated ; remaining segments suddenly narrowed; venter depressed on each side and rather acutely produced in the middle, the apical segments suddenly acute at tip and gaping; ovipositor short, valves black. Length 4 lines; ex- panse of wings 8J lines. Collection. — Dr. J. Grundlach. One specimen. 1865.] i- 3 Bracon picipes, n. sp. Eufous, polished; head, antennae and legs, piceous: wings dark fuscous; ab- domen, short, ovate, second segment broadly and obliquely excavated on each side at base, third segment deeply incised at base, remaining segments not in- cised ; ovipositor longer than the body. Female. — Pale rufous, polished ; head globose, piceous, tinged with testaceous on the face; orbits and lower part of cheeks, clothed with pale pubescence; antennas as long as the body, black, basal joint elon- gate, slightly thickened at tip. Thorax smooth and polished ; lobes of the rnesothorax distinct; metathorax smooth and convex, slightly pu- bescent; tegulas black. Wings uniformly dark fuscous, with a hyaline streak within the first submarginal cell, ending in a spot below its tip; nervures and stigma black. Legs piceous, the four anterior coxa; ru- fous at base and beneath. Abdomen short, ovate, polished ; first seg- ment excavated at base and on each side, the middle towards the tip is prominent, subconvex and bordered on each side by an acute longitu- dinal carina, lateral margins reflexed, with the apical angles prominent and acute ; second segment obliquely depressed on each side, more deeply so at base, the basal middle prominent and prolonged behind into a well defined carina which extends nearly to the tip of the seg- ment ; third segment deeply incised at base, and with an oblique im- pressed line on each side at base passing behind the basal angle ; re- maining segments smooth and slightly pubescent; venter concave, the last segment prominent, elongate, acute and slightly curved at tip; ovipositor a little longer than the body, piceous. Length 4 lines ; ex- panse of wings 9 lines. Collection. — Ent. Soc. Philad. One specimen. Bracon aciculatus, n. sp. Rufous: antennae and legs black: wings fuscous; abdomen rough at base, the second, third and fourth segments densely striated longitudinally; head rather transverse; ovipositor shorter than the abdomen. Female. — Obscure rufous, shining, slightly pubescent; head rather transverse, black, tinged with rufous around the mouth ; antenna: two- thirds the length of the body, entirely black. Thorax smooth and shining; dorsal lines of the rnesothorax deeply impressed; beneath, just in frout of each anterior coxa, an elongate black space; metatho- rax convex, smooth and polished ; tegulse rufous. Wings uniformly fuscous, with a subhyaline streak in the first submarginal cell and a spot beneath its tip; the outer nervure of the second submarginal cell margined with hyaline; nervures and stigma blackish. Legs, including the coxae, slightly tinged with piceous; tips of the trochanters tinged with rufous. Abdomen broadly ovate, subdepressed, obscure rufous; 74 [January first segment rufous, the disk elevated and the lateral margins acutely carinated ; second and two following segments densely and longitudi- nally striated, the stride not quite reaching the tips of the third and fourth segments ; second segment obliquely and rather deeply impressed on each side, with a triangular polished space on each side at base be- tween the middle and lateral margin, on the basal middle between these spaces an angular carina pointed posteriorly and continued down the centre of the segment in a single carina ; third segment with an ill-de- fined, impressed, arcuated line extending all the way across the segment near its base; fourth segment without a transverse impressed line; fifth and following segments smooth and polished; venter somewhat concave, yellowish; ovipositor shorter than the abdomen, black. Length 3£ lines ; expanse of wings 7 lines. Collection. — Dr. J. Gundlach. Two $ specimens. Readily distinguished by the densely striated abdomen. Bracon armatus. n. sp. Rufous, polished; head, antennae and legs, black; wings fuscous; metathorax deeply punctured; posterior coxse toothed above; abdomen ovate, disk of second segment with an enclosed ovate space, the segments not incised; ovipositor longer than the abdomen. Female. — Rufous, polished, slightly pubescent; head globose, black, clothed with long, pale pubescence; face slightly prominent; palpi black; antennae two-thirds the length of the body, entirely black. Thorax : mesothorax with the dorsal lines deeply impressed, making the middle lobe very prominent; sutures of the pectus and pleura crenu- lated,on the latter, beneath the wings, an obliqe deeply impressed line; metathorax covered above with large deep punctures, with a well de- fined longitudinal carina on the disk, the posterior angles produced into an obtuse tubercle, extreme sides somewhat rugose; tegulae black. Wings uniformly dark fuscous; nervures and stigma black. Legs, in- cluding the coxa;, black, pubescent; the two anterior pairs tinged with piceous ; the tarsi yellowish ; posterior coxce with a stout, acute tooth above. Abdomen ovate, convex, polished; first segment rather broad, flattened, with a longitudinal carina on each side, not reaching the tip; second segment with an ovate, deeply impressed line on the disk at base, enclosing a rather large space, and from each side behind this space the impressed lines runs somewhat obliquely to the lateral margin, re- mainder of the segment and all the other segments smooth and polished ; venter slightly depressed; ovipositor one-fourth longer than the abdo- men, valves black. Length 3f lines; expanse of wings 7 lines. Collection. — Dr. J. Gundlach. One specimen. 1865.] 75 Easily recognized by the smooth abdomen, and by the posterior coxae being toothed above. Bracon limatus, n. sp. Rufous, polished: head, antennae and legs, except posterior coxae and femora, black; posterior coxa? simple; wings dark fuscous: metathorax smooth, not punctured: abdomen ovate, disk of second segment with an ovate enclosed 6pace, the segments not excised ; ovipositor as long as the abdomen. Female. — Closely allied to B. armatus, from which it differs as fol- lows: — The metathorax is smooth, not punctured, the central carina? subobsolete ; the wings are darker ; the posterior coxse are not spinose, and their femora, except tips, are rufous, instead of black ; the abdomen is sculptured the same in both species. Length 3 lines; expanse of wings 6 lines. Collection. — Ent. Soc. Philad. One specimen. Bracon distinctus, n. sp. Rufous, polished; head, antennae and legs, except base of coxae and hind fe- mora, black; wings dark fuscous; metathorax large, quadrate, flattened; abdo- men rather robust, abruptly deflexed behind, viewed laterally, subtriangular. the venter beiug prominent; ovipositor longer than the abdomen. Female. — Head black, tinged with rufous on each side and beneath the base of the antennae, clothed with long pale pubescence, especially on each side of the face, cheeks and clypeus; just beneath the antennae a square elevation depressed in the middle ; on each side and beneath this elevation, the face is transversely striated ; vertex, occiput and cheeks polished; antennae black (tips broken off). Thorax rufous, polished ; mesothorax with the middle lobe broad, convex and very prominent, the dorsal lines deeply impressed, confluent behind the middle, forming a rather deep channel in which are two sharply defined. longitudinal carinae, posterior margin finely striated; collar with a trans- verse, rather deep furrow above; pleura highly polished, with a deep, longitudinal, impressed line about the middle; scutellum flattened, slightly prominent on the middle, deeply excavated in front, the exca- vation divided in the middle by a short, acute, longitudinal carina; metathorax large, depressed, quadrate, shining, covered above with nu- merous unequal, rounded pits, most of them deeply impressed, extreme sides smooth and polished; on each side behind, just above the inser- tion of the abdomen, a large, rounded, rather smooth depression ; teg- ulae rufous. Wings uniform dark fuscous, slightly subhyaline about the lower part of the first submarginal cell; nervures and stigma black. Legs black, pubescent ; base of all the cox;e and the posterior femora, except extreme base and apex, rufous; tarsi, except base and apex, 76 [January tinged with rufo-piceous. Abdomen robust, bright rufous, polished, rather broad at base and gradually dilated to the tip of the secoud seg- ment behind which the abdomen is suddenly deflexed, the venter being full and subconvex, so that when viewed in profile the abdomen is sub- triangular ; first segment deeply and smoothly excavated at base with an acute, longitudinal carina on each side not quite reaching the tip, on the outside of these carinse the surface is longitudinally striated ; second segment with the basal two-thirds very uneven, having several elevations like blisters, the apical third smooth and polished, the middle of the basal half is enclosed by a deeply impressed semicircular groove from which proceeds, on each side, a deep transverse groove, on each side behind the semicircular enclosure, there is an abbreviated longi- tudinal carina, and between these two carinae there are two rather large blisters ; third and fourth segments with two large blisters at base, divided by a faintly defined longitudinal carina which runs down the segments nearly to the tip; the sixth and following segments pubescent; venter large, prominent, polished, somewhat oblique on each side ; ovi- positor half again as long as the abdomen, rufo-piceous, valves black. Length 5 lines; expanse of wings 11 lines. Collection. — Dr. J. Grundlach. One specimen. Easily distinguished by the large quadrate metathorax and the sculp- ture of the first and second segments of the abdomen. The position of the abdomen in the specimen before me may be unnatural. Bracon ventralis, n. sp. Black: abdomen rufous; wings dark fuscous; abdomen broadly ovate, deeply incised. Female. — Head black, densely clothed with pale pubescence ; palpi blackish, pubescent; antennae as long as the body, black. Thorax black, shining, slightly clothed with pale pubescence, especially on the pleura and metathorax; mesothorax polished, the dorsal lines tolerably well impressed, making the central lobe rather prominent; scutellum shining; metathorax minutely punctured, shining, pubescent on the sides, slightly so on the disk, tinged with rufous about the insertion of the abdomen; tegulse black. "Wings uniform dark fuscous, a streak in the first submarginal cell, and a spot at its tip beneath, subhyaline ; uervures and stigma black. Legs, including the coxas, entirely black. Abdomen short and broadly ovate, rufous, shining; basal segment broad, flattened, gradually dilated towards the tip, convex on the middle, de- pressed on each side with a longitudinal, ill-defined carina in each de- pression : second segment flattened, obliquely depressed on each side at 1865.] 77 base, making the extreme basal angles prominent or somewhat tuber- culated, on the bas;il middle a slight elevation, apical margin sinuate and very oblique on each side, behind which the basal angles of the third segment are very prominent or tuberculated; third segment with a deep transverse impressed line, slightly oblique on each side and passing just behind the prominent basal lateral angles; the two follow- ing segments deeply incised at base ; remaining segments suddenly narrowed and slightly pubescent; venter deeply concave; ovipositor nearly as long as the body, rufous, valves black. Length 4 J lines ; expanse of wings 10 lines. Collection. — Dr. J. Grundlach. One specimen. Readily distinguished from the other species by the abdomen only being rufous. Bracon striatulus. n sp. Rufous; antenna and legs black: wings dark fuscous; metathorax large and finely sculptured.: abdomen elongate, the first and part of second segments de- pressed and covered with dense longitudinal strife: ovijjositor as long as the body. Female — Sanguineous, shining, slightly pubescent; head globose, face covered with very fine transverse striae ; tips of mandibles and the palpi, blackish ; antennae about as long as the body, very slender, en- tirely black. Thorax long, somewhat depressed above, polished ; lobes of the mesothorax prominent, the central one transversely striated on each side anteriorly and on the middle posteriorly all the way to the posterior margin ; pectus irregularly striated, and the sutures of the pleura crenulated; scutellum smooth and polished, the depression in front striated; metathorax large, quadrate, finely and irregularly striated, with several acute longitudinal carinas, the extreme sides transversely striated ; tegulae black. Wings uniform dark fuscous, faintly subhya- line beneath the stigma; nervures and stigma black. Legs black, pu- bescent ; the coxae, except tips, obscure rufous ; tarsi rufo-piceous ; posterior legs stout. Abdomen elongate, ovate beyond the first segment, somewhat shining; first segment longer than broad, sides parallel, de- pressed above and covered with dense longitudinal striae, which extends on to the basal half of the second segment, which is also depressed, not extending to the lateral margins, but forming a semicircular striated space, remaining segments smooth and somewhat shining; ovipositor as long as the body, piceous, valves black. Length 4 lines; expanse of wings 8 lines. Collection. — Dr. J. Grundlach. One specimen. Readily distinguished by the elongate form and striated abdomen. 78 [January Bracon intimus, n. sp. Rufous; antennae and legs black: wings dark fuscous, posterior pair hyaline at base in 9 >' abdomen broadly ovate, the segments deeply incised at base, se- cond segment carinated down the middle, with a deep excavation on each side at base ; ovipositor longer than the abdomen. Female — Rufous, shining; head globose, pubescent; tips of mandi- bles and palpi blackish; antennas longer than the body, blackish-pice- ous. Thorax smooth aud polished ; mesothorax flattened, the lobes not well defined ; scutellum slightly convex ; metathorax small, polished, convex and slightly pubescent, sometimes paler in color than the rest of the body; tegulte rufous. Wings uniformly dark fuscous, the pos- terior pair hyaline at base, anterior pair with an oblique subhyaline streak beneath the base of the stigma ; nervures black. Legs black, pubescent ; the posterior coxae and base of the middle pair rufous. Abdomen short, broadly ovate, polished, depressed ; first segment ex- cavated at base and on each side, swelled on the middle towards the tip, with a longitudinal, sharply defined carina on each side, the lateral margins acute and reflexed towards the tip; second segment with a deep excavation on each side at base, and a slight one on the disk divided down the middle by a carina which proceeds from an elevation on the basal middle, apical margins suddenly rounded on each side ; third segment deeply incised at base, the incisure slightly striated and ex- tending' on each side both before and behind the basal angles which are prominent or tuberculated; the two following segments very deeply incised at base which is more or less concealed ; remaining segments suddenly narrowed and pubescent; venter concave, the terminal seg- ment acute; ovipositor slightly longer than the abdomen, rufous, valves piceous. Length 3 — 3} lines; expanse of wings 7 — 8£ lines. Male. — Like the female, except that the antennae are longer, the mesothorax more distinctly lobed, the base of posterior wings not hya- line; the tegulae, disk of metathorax and posterior coxae slightly tinged with dusky, and the abdomen more elongate and gradually narrowed to the apex, with the basal incisures of the third, fourth, fifth and sixth segments striated, more distinctly so on the third segment. Length 3 lines; expanse of wings 7 lines. Collection. — Ent. Soc. Philad. Two 9 , one S , specimens. This seems to be allied to B. erythrxus Brulle, which is described as a Cuban species, and which I have not been able to identify. That species, according to the description, has the metathorax channelled down the middle and the abdomen differently sculptured from the spe- cies above described. 1865.] 70 Bracon dejectus, n. sp. Rufous; abdomen sanguineous ; face pale rufous; vertex, antennae and legs piceous ; wings fuscous; abdomen oblong, segments incised, second segment with a semicircular excavation on each side. Mule. — Head globose, pale rufous, vertex and part of occiput, pice- ous; antennae one-fourth longer than the body, blackish. Thorax ru- fous, smooth and polished ; metathorax convex, smooth and polished. slightly pubescent; tegulse yellowish. Wings uniformly pale fuscous, as well as the nervures and stigma. Legs piceous, anterior coxas and base of the posterior pair, pale rufous. Abdomen oblong, depressed, much angulate at base, shining, sanguineous ; second segment with a large semicircular depression at base, remaining segments more or less deeply incised at base, and gradually narrowed towards the tip; venter concave. Length 2 lines; expanse of wings 4 lines. Collection. — Dr. J. Gundlach. One specimen. Bracon albifrons. n. sp. Yellowish-rufous; head except face, antennae, four posterior coxse, and pos- terior pair of legs, black; wings pale fuscous; abdomen elongate and striated, second segment obliquely depressed and rugose, the segments not incised. Male. — Yellowish-rufous ; head transversely subquadratc, black, shining; face, except a blackish spot beneath the antennas, whitish; antenna) slender, longer than the body, black. Thorax smooth and polished; lobes of the mesothorax prominent; on the pectus beneath, in front of each anterior coxa, an elongate black mark ; scutellum and metathorax convex, smooth and polished ; tegulae yellowish-rufous. Wings pale fuscous, the nervures and stigma dark fuscous. Legs color of the body, the middle coxae, tips of their tarsi and the posterior coxae and legs, black or piceous; posterior legs robust. Abdomen rather elongate, depressed, opaque, the sides subparallel, gradually narrowed at tip ; first segment coarsely rugose, depressed on each side, with the middle prominent and flattened on the disk, the sides are somewhat transversely striated ; second segment coarsely striated longitudinally, with an obliquely depressed line on each side from the base to the late- ral margin; third aud two following segments longitudinally striated, with a more or less distinctly impressed, somewhat oblique line at base, extending from side to side ; apical segments slightly dusky ; venter concave. Length '2\ lines; expanse of wings 4 lines. Collection. — Ent. Soc. Philad. One specimen. Readily distinguished by its small size, pale color and striated abdo- men, and especially the pale face, the rest of the head being black. 80 [January Bracon rufithorax. n. sp. Piceous ; head, pectus, mesothorax and legs, rufous; wings hyaline; abdo- men oblong-ovate, shining, two basal segments aciculate; ovipositor longer than the abdomen. Female. — Head globose, rufous, slightly pubescent ; tips of mandi- bles blackish ; antennae longer than the body, very slender, piceous, the two basal joints tinged with rufous. Thorax rufous, minutely punc- tured, slightly pubescent; the dorsal lines of mesotborax deeply im- pressed, the disk somewbat depressed and rugose; pleura piceous-black, tinged with rufous beneath ; scutellum and metathorax also piceous- black, the former shining, the latter rugose, smoother at base, near which there is a transverse, sharply defined, shining carina; tegulae pale rufous. Wings hyaline, iridescent; nervures and stigma fuscous, the latter rather large. Legs, including the coxa?, pale rufous. Ab- domen oblong-ovate, incurved, pointed at tip; basal segment covered with dense longitudinal striae which extend on to the basal third of the second segment and funning a semicircular space margined with obscure rufous, outside of this space the surface is minutely and irregu- larly striated, the apical margin smooth and polished, as well as all of the remaining segments, which are faintly stained with pale rufous ; ovipositor longer than the abdomen, pale rufous, valves piceous-black. Length 2 lines ; expanse of wings 4 lines. Collection. — Dr. J . (iundlaeh. One specimen. Bracon discolor, n. sp. Pale honey-yellow; antenna?, metathorax and basal segment of abdomen, piceous, legs whitish; wings obscure hyaline; abdomen ovate, the two basal segments striated : ovipositor as long as the abdomen. Female. — Pale honey-yellow, shining; head globose; antennas as long as the body, slender, piceous, the basal joint pale honey-yellow. Thorax with the dorsal lines deeply impressed; scutellum depressed, shining; postscutellum and metathorax piceous, the latter rugose, with a large honey-yellow spot on each extreme side ; tegulae yellowish-white. Wings obscure hyaline, slightly iridescent; nervures pale, stigma rather large, fuscous, white at base and tip. Legs, including the coxae, whitish ; tips of the femora beneath and extreme base of the posterior tibiae, black; all the tibia? and tarsi more or less dusky. Abdomen ovate, the two basal segments covered with dense longitudinal striae, less distinct on the second segment, the apical margin of which is smooth and po- lished, as well as all the remaining segments; basal segment piceous ; the rest honey-yellow, paler towards the tip ; ovipositor as loug as the abdomen, blackish. Length I4 line; expanse of wings 8 lines. Collection. — Ent. Soc. Philad. One specimen. 1865.] 8] Bracon ? cincticornis, n. sp. Bright ferruginous: head piceous; antennseand part of legs hlack, the former with a broad whitish annulus ; wings fusco-hyaline; base of abdomen striated. Female. — Bright orange-ferruginous, robust ; head subglobose, pice- ous, paler in front; antennae lo-jointed, two-thirds as long as the body, black, joints seven to nine whitish. Thorax ferruginous, tinged on each side with piceous ; rnesothorax with two longitudinal carina? on the disk, rounded and confluent behind the middle, lateral margins elevated and piceous; scutellum somewhat convex; metathorax ferru- ginous, with well defined elevated lines, forming a large subrhomboidal central area. Wings fusco-hyaliue, with a strong brassy reflection ; nervures indistinct. Legs: the coxa? and four anterior legs black, with the extreme tips of their femora and tibia? and the whole of the tarsi, whitish ; posterior pair pale ferruginous, with the tips of their tibia? and most of their tarsi, dusky. Abdomen short, rather broad and sub- ovate, depressed, bright orange-ferruginous, opaque; the first and base of second segments covered with fine longitudinal carina?, the third segment covered with semicircular stria?, running from the base ; re- ^o maining segments retracted; ovipositor short. Length fths of a line; expanse of wings If line. Collection.— Dr. J. Grundlach. One specimen. Easily recognized by its minute size and annulated antenna?. Bracon exiguus, n. sp. Dull honey-yellow, legs paler; antennae black: wings subhyaline, iridescent: abdomen broadly ovate, finely and densely punctured; ovipositor longer than the abdomen. Female. — Dull honey-yellow; head globose ; antenna? black. Tho- rax smooth and polished ; metathorax convex, polished, with a rather deep, longitudinal, central furrow; tegula? honey-yellow. Wings sub- hyaline, tinged with fuscous, slightly iridescent; nervures pale fuscous, stigma pale testaceous. Legs pale testaceous, tips of tarsi dusky. Ab- domen broadly ovate, subdepressed, very densely and finely punctured, opaque honey-yellow ; the second and third segments slightly incised at base, the former with a subobsolete carina down its middle; apical segments gradually narrowed to the tip ; venter concave, the ventral valve large and prominent; ovipositor longer than the abdomen, honey- yellow, valves black. Length \\ line; expanse of wings 3 \ lines. Collection. — Ent. Soc. Philad. One specimen. Bracon pallens, n. sp. Yellowish: antennae fuscous ; wings subhyaline, iridescent; abdomen ovate, shining, segments not incised, second segment excavated on each side of the basal middle; ovipositor longer than the abdomen. ^2 [January Female. — Yellowish, tinged with honey-yellow, shining; head sub- globose, extreme tips of mandibles and a spot within the ocelli, brown- ish ; antennae about as long as the body, fuscous. Thorax smooth and polished; lobes of the mesothorax scarcely defined; metathorax convex, smooth and polished, slightly pubescent, faintly depressed on the disk; tegulae yellowish, with a dusky dot. Wings subhyaline, faintly tinged with dusky, especially at base, iridescent ; nervures and stigma pale testaceous. Legs pale yellowish, tips of the four anterior tarsi, and the posterior legs, more or less dusky. Abdomen broadly ovate, depressed, shining; the segments slightly incised at base, the second segment somewhat excavated on each side of the basal middle, the two apical segments excavated on their disk ; venter concave ; ovipositor one- fourth longer than the abdomen, yellowish, valves fuscous. Length 1^ line ; expanse of wings 4 lines. Collection. — Dr. J. Grundlach. Que specimen. Allied to B. exiguus, but is a little larger, with longer wings, and the abdomen smooth and not densely punctured as in that species. Bracon centralis, n. sp. Yellowish; spot on vertex, antennae, legs, and a large mark on the disk of abdomen, occupying nearly the whole of the second and following segments, blackish; wings fusco-hyaline. Female. — Head subglobose, shining, honey-yellow; tips of mandibles and a large spot on the vertex enclosing the ocelli, blackish; antennae slightly longer than the body, blackish. Thorax honey-yellow, polished ; lobes of the mesothorax scarcely defined ; metathorax convex, smooth and polished; tegulae pale honey-yellow. Wings uniformly fusco-hya- line ; nervures and stigma fuscous. Legs, including the coxse, black- ish ; tips of the trochanters and of the femora, pale. Abdomen broadly ovate, depressed, polished, pale yellowish, second and following segments above blackish except their lateral margins, which are pale yellowish; segments not incised, the second with a few faint depressions; apical segments gradually narrowed; venter concave, yellowish-white; ovipo- sitor one-half longer than the abdomen, black. Length If line; ex- panse of wings 3i lines. Collection. — Dr. J. Grundlach. One specimen. Easily distinguished from the other species by the large, black, dis- coidal mark on the abdomen. Bracon perparvus, n. sp. Yellowish; antennre, disk of metathorax, base and apex of abdomen, fuscous; wings hyaline; abdomen ovate, finely punctured, not excavated. Male. — Pale yellowish, faintly tinged with honey-yellow, slightly 1865.] 83 pubescent, shining; head globose; antennae fuscous. Thorax shining; mesothorax without impressed lines, tinged with fuscous on the disk and also on the posterior margin; pleura with a curved fuscous line on each side ; metathorax stained with fuscous, finely and closely punc- tured, with a faint carina down the middle, basal margin somewhat striated ; tegulae pale testaceous. Wings short, hyaline ; nervures and stigma fuscous. Legs pale yellowish, the posterior pair more or less dusky. Abdomen rather short, ovate, finely punctured, subopaque ; basal margins of the segments slightly impressed ; first segment fuscous, concave, and carinated on each side ; second segment not excavated ; two apical segments tinged with fuscous. Length 1} line; expanse of wings 2i lines. Collection. — Dr. J. Grundlach. One specimen. Bracon fuscovarius, n. sp. Pale luteous: lateral margins and two lines on disk of mesothorax. spot on each side of pleura, most of metathorax, posterior femora and dorsal surface of abdomen, blackish or fuscous; wings hyaline; abdomen elongate, ovipositor very short. Female. — Pale luteous; head transverse; antennae tinged with honey- yellow (broken) ; mesothorax with the dorsal lines deeply impressed, not reaching the posterior margin, fuscous, as well as the lateral mar- gins; on each side of pleura a rather large blackish mark; metathorax rugose, with a large blackish mark covering nearly the whole of the dorsal surface ; tegulae pale luteous. Wings hyaline, iridescent ; ner- vures pale luteous varied with fuscous, stigma rather large, fuscous, the base and apex pale luteous. Legs pale luteous, long and slender; a spot on the posterior coxae and most of their femora, fuscous. Abdo- men elongate, depressed, the three basal segments covered with longi- tudinal striae; pale fuscous, a spot on each side of the basal segment and stains on the upper surface of second and third segments, fuscous ; beneath pale luteous; ovipositor scarcely exserted. Length 3 lines; expanse of wings 5 lines. Collection. — Dr. J. Gundlach. One specimen. Genus ROGAS, Nees. Rogas flavidus, n. sp. Yellowish : antennse, apical half of posterior tibife and their tarsi entirely, black: wings pale yellowish-hyaline, apical margins broadly dusky; two basal segments of abdomen with a carina down the middle. Male. — Yellowish, mostly opaque, slightly pubescent; head dull ho- ney-yellow, the eyes large, blackish, as well as the tips of the mandi- bles ; antennae as long as the body, blackish. Thorax : mesothorax *4 [January opaque, dull honey-yellow, the dorsal lines distant and well impressed ; pectus and pleura polished ; scutellum elongate-triangular, pointed in front, the space on each side sloping, polished ; metathorax opaque, with several subobsolete longitudinal elevated lines, the central one of which is the most distinct, posterior margin produced into a stout sub- acute tubercle on each side of the insertion of the abdomen. Wings ample, pale yellowish hyaline, the apical margins broadly pale fuscous, posterior pair somewhat iridescent; nervures and stigma yellow. Legs rather long and slender, color of the body, except the apical half of the posterior tibia? and their tarsi entirely, which are black. Abdomen as long as the head and thorax, flat, opaque yellowish, shining towards the apex; lateral margins of the two basal segments slightly carinated, and also a longitudinal carina down their middle and continued slightly on the base of the third segment; apical middle of the first segment with a small, very obtuse, polished elevation; apical segments slightly tinged with honey-yellow. Length 5 lines; expanse of wings 10 A lines. Collection. — Ent. Soc. Philad. Two specimens. One of the specimens before me is much duller in color, being a uni- form dull yellowish-brown, and the apex of the wings scarcely dusky; otherwise I see no difference, and therefore I consider it as a variety. Genus MEGISCHUS, Brulle. Megischus brunneus, n. sp. Dark brown: knees yellowish ; wings subhyaline; first abdominal segment transversely striated: ovipositor brown, valves blue-black. Female — Dark chesnut-brown, shining; head coarsely rugose, the vertex transversely and deeply striated, having anteriorly five short, acute tubercles, arranged thus: 2, 2, 1, the latter or foremost one being the largest, and the posterior pair the smallest; cheeks shining, sparsely punctured ; antennas rather more than half the length of the body, fine, thread-like, blackish, the basal joints brown. Thorax coarsely and confluently punctured, the apex of the metathorax transversely ru- gose. Wings subhyaline, slightly tinged with fuscous; nervures and stigma blackish, the latter with a pale spot at base. Legs brown, the knees yellowish, the posterior femora and tibia} tinged with blackish exteriorly; posterior femora with two stout spines or teeth beneath, the anterior one largest, between these two teeth are two smaller ones, and behind the last tooth there are four minute serratures; posterior tibiae with their apical two-thirds much swollen, their basal third rather slen- der and compressed; posterior pair 3-jointed, the basal joint robust and much dilated ; all the tarsi beneath with a dense pale yellowish pube- 1865.] 85 scenee. Abdomen : the first segment transversely aciculate, remaining segments smooth and shining; ovipositor longer than the body, brown- ish, valves blue-black. Length of body 7 — 11 lines, of ovipositor 9 — 13$ lines; expanse of wings 91 — 141 lines. Male — Resembles the female, but is more elongate and slender, the posterior tibiae are not so much swollen, and the tarsi are 5-jointed and not at all dilated; the posterior femora beneath have the two large teeth of about equal size, and between them and behind the last one there are several minute serratures. Length 9 lines; expanse of wings 9$ lines. Collection. — Ent. Soc. Philad. Two 9 j two £ specimens. Both % and £ of this species were taken by Dr. Gundlach in consi- derable number, coming out of the same hole in the trunk of a diseased tree called Julia in Spanish. Genus STENOPHASMUS. Smith. Stenophasmus Gundlachii, n. sp. Rufo-ferruginous; antennae pioeous ; wings fusco- hyaline. Female — Uniform rufo-ferruginous, subopaque; face rugose, mandi- bles dusky; antennae longer than the body, very slender and setaceous, piceous, the two basal joints dull rufous. Thorax elongate; dorsal lobes of the mesothorax prominent, especially the central one, which is transversely striated, very finely so on the disk and coarsely on the side, behind it there is a large excavation which is also transversely striated ; sides of the pectus with a deep longitudinal excavation, which is trans- versely striated ; pleura polished with a longitudinal, deeply impressed line on each side beneath; scutellum polished; metathorax rugose, po- lished on each side at base. Wings fusco-hy aline, (imperfect). Legs darker in color than the body, polished, slightly pubescent; posterior tibiaa and tarsi somewhat flattened. Abdomen elongate, incurved and much thickened at tip; first segment nearly as long as the remaining segments together, slightly broader at tip, covered with very fine trans- verse striae, more obvious on the sides; on each side, between the base and the middle of the segment, a stout tubercle, and on each side at the extreme base a cariniform process truncate behind and forming a subacute angle; second segment opaque, with a longitudinal impressed line on each side of the middle, not reaching beyond the middle ; re- maining segments somewhat shining, much thickened, incurved, and gradually narrowed to the tip ; ovipositor as long as the body, blackish. Length 61 lines. Collection. — Dr. J. Gundlach. One specimen. 86" [January Stenophasmus cubensis. n. sp. Dark fuscous, varied with rufo-ferruginous ; antennee blackish; wings fusco- hyaline. Female. — Dark fuscous, sometimes rufo-ferruginous; sculptured like the preceding species; antenna; longer than the body, entirely black; wings uniform fusco-hyaline, faintly subhyaline beneath the stigma ; nervures and stigma black. Legs blackish-fuscous ; the coxae, tibiae and tarsi sometimes tinged with rufo-ferruginous. Abdomen dark fuscous, more or less varied with rufo-ferruginous, the apex always fuscous; ovipositor as long as the body, black. Length 5} lines ; expanse of wings 8 lines. Collection. — -Dr. J. Grundlach. Two specimens. Smaller than S. Gundlachii. the form and sculpture being the same, but the color is darker, and the legs, even in the palest specimen, are almost black. This and the preceding species seem to accord sufficiently well with Mr. Smith's description of Stenophasmus, a genus founded on 9 speci- mens from the East Indies. The males seem to be unknown to him. and I give below descriptions of two species which are, doubtless, the males of that s;enus. Stenophasmus megischoides. n. sp. Black; antennae very long and slender; abdomen long and sublinear; wings' fusco-hyaline. Male. — Black, with a slight brownish tinge; head globose, face coarsely rugose, the cheeks and occiput smooth and polished ; clypeus obscure rufous ; antennae about half as long again as the body, very slender, more so at tips, first joint rather robust, suddenly constricted at base. Thorax elongate, rugose, the collar elevated above in a pro- minent ridge; mesothorax transversely striated, the lobes distinct; pectus and pleura irregularly striated; scutellum smooth and shining, slightly prominent at tip; metathorax rugose, rather large and quadrate; tegulae obscure rufous. Wings narrow, fusco-hyaline, faintly subhya- line beneath the stigma, posterior pair subhyaline, clearer than the an- terior pair ; nervures and stigma blackish. Legs rather slender, slightly pubescent, black, the coxae mostly obscure rufous. Abdomen twice as long as the thorax, sublinear, depressed ; first segment as long as the second, third and fourth together, slightly broader at tip, covered with fine transverse striae, shining, the extreme base with an expanding cariniform process as in the previous species, while the lateral tubercle on each side between the base and middle is scarcely visible ; the su- ture between the second and third segments is very indistinctly defined, 1865.] 87 both segments are equal in length, slightly longer than broad, and opaque; remaining segments shining, gradually narrowed to the tip. the sutures distinct. Length of body 8 lines; of antennas 11 i lines; of abdomen 5f lines; expanse of wings 10 lines. Collection. — Dr. J. Gundlach. One specimen. This species bears a remarkable resemblance in its form to that of the males of 3fegischus, but it is not so linear, and the antennas are almost twice as long ; the neuration of the wings is different, and the hind legs are simple. Although the color of this species is much darker than that of the preceding (S. cubensis), and the form more elongate, still it may yet prove to be the male of that species, as the color and neuration of the wings are the same and the sculpturing of the body similar. Stenophasmus pusillus. n. sp. Ferruginous; legs and tip of abdomen tinged with dusky; antennae blackish, as long as the body; wings subhyaline. Mate. — Uniform ferruginous; indistinctly sculptured; head rather large, globose, the cheeks and occiput polished; antennas as long as the body, very slender, piceous, tinged with ferruginous at base; lobes of the mesothorax distinctly defined, the collar rather prominent; me- tathorax minutely rugose above, smooth on the sides. Wings uniformly pale f'uscodiyaline, slightly iridescent; nervures and stigma pale fus- cous. Legs fusco-ferruginous, the anterior pair ferruginous. Abdomen about twice as long as the thorax, sublinear, depressed; basal segment long and slightly broader at tip, with two tubercles on each side be- tween the middle and the base, the one near the base prominent, the other one not so distinct; the suture between the second and third seg- ments indistinct as in the preceding species ; remaining segments shining, the apex slightly recurved and tinged with fuscous. Length 3i lines; expanse of wings 5 lines. Collection. — Dr. J. Gundlach. One specimen. Division. — Exodontes. Genus ALYSIA, Latr. Alysia nigriceps, n. sp. Rufous, polished; head, antennae and legs, black ; wings dark fuscous; ab- domen convex. Male. — Rufous, highly polished; head transverse, black; lower part of the face, clypeus, mandibles and palpi, piceous; antennas nearly one- half longer than the body, black. Thorax smooth and polished; lobes of the mesothorax distinct; metathorax slightly carinated down the middle and on each side; tegulas rufous. Wings uniformly blackish- Stf [January fuscous ; nervures and stigma black. Legs black, the anterior coxae and the base of the two posterior pairs, rufous. Abdomen subovate. convex, smooth and polished; first segment excavated at base, swelled on the disk towards the tip, and depressed and carinated on each side ; the incision between the first and second segments rather deep; apex truncate. Length 3] lines ; expanse of wings 7 lines. Collection. — Dr. J. Grundlach. One specimen. Alysia ruficoxalis, n. sp. Pale rufous", polished; face, antennae and legs, except coxae, piceous; wings fuscous : abdomen convex. Male. — Pale rufous, polished ; head transverse; the face, tips of man- dibles and the palpi, piceous; antennas one-half longer than the body, black. Thorax smooth and polished; lobes of the mesothorax distinct; scutellum flat, with a pale fuscous streak down its middle; metathorax carinated down the middle; tegulae rufous. Wings uniformly dark fuscous; nervures and stigma black. Legs black; the coxae rufous; tips of the trochanters as well as the anterior tarsi, tinged with rufous. Abdomen subovate, convex, smooth and polished ; first segment exca- vated at base, swelled on the disk towards the tip,, and carinated on each side, the incision between it and the second segment rather deep; apex truncate, the last ventral segment with an elongate process on each side posteriorly. Length 4 lines; expanse of wings S lines. Collection. — Dr. J. Grundlach. One specimen. Differs from A. nigriceps principally by the head being red, instead of black. Alysia analis, n. sp. Honey-yellow; head, antennae, legs and apical half of abdomen, black or piceous: wings fusco-hyaline : abdomen flattened. Male. — Head transverse, black, polished; face piceous, its lower margin, as well as the clypeus and mandibles, rufous; antennae longer than the body, black, the basal joint piceous. Thorax honey-yellow, polished; dorsal lines of the mesothorax deeply impressed; metathorax with a sharp carina down the middle and another on each side; tegulae pale honey -yellow. Wings uniformly pale fuscous; nervures and stig- ma fuscous. Legs fuscous, the tarsi paler; coxae honey -yellow. Ab- domen elongate, flat, sides parallel, tip truncate; the first, second and basal margin of the third segment, pale honey-yellow ; remaining seg- ments fuscous, their apical margins sometimes pale. Length 2 \ lines; expanse of wings 4J lines. Collection. — Dr. J. Grundlach. Two specimens. 1865.] 89 Division. — Flexiliventres. Genus TRIOXYS, Haliday. Trioxys fuscatus, n. sp. Fuscous ; face, tegulse, thorax beneath, and the legs, pale testaceous ; wing? hyaline. Fuscous, smooth and polished; face, clypeus, mouth and cheeks, pale testaceous; head large, broader than the thorax, vertex convex, eyes round and rather prominent; antenna; 13-jointed, nearly as long as the body, pale testaceous. Thorax smooth and convex above; a deep trans- verse excavation in front of the scutellum, which is convex ; metatho- rax smooth, rather convex and pale testaceous posteriorly ; the pleura is sometimes testaceous, as well as the tegulas. Wings hyaline, iride- scent, slightly pubescent; nervures pale, stigma large, triangular; the radial and cubital cells imperfect, a complete long, sublanceolate basal costal cell. Legs long and slender, especially the posterior pair, and including their coxae, pale testaceous, the posterior pair sometimes tinged with dusky. Abdomen elongate, slender at base and gradually broader and subcompressed towards the tip, which is more or less tinged with dusky, while the base is pale testaceous. Length f line; expanse of wings 1 \ line. Collection. — Ent. Soc. Philad. Four specimens. Genus APHIDIUS, Nees. Aphidius fuscoventris, n. sp. Black, polished; tegulse and legs pale; abdomen, except first segment, pale fuscous; wings hyaline, iridescent; basal segment of abdomen striated. Black, polished ; head transverse ; clypeus and mandibles honey-yel- low; palpi whitish; antennas longer than the body, slender, black, pu- bescent, the two basal joints honey-yellow; mesothorax without dorsal impressed lines, but on each side of the anterior margin there is a rather deep excavation, the lateral margins are slightly grooved, and on the disk posteriorly, just in front of the scutellum, there is a deep fovea; pleura slightly pubescent; scutellum smooth and polished, with a deep transverse excavation in front; metathorax rugose; tegulae whitish. Wings ample, hyaline, iridescent ; nervures and stigma fuscous ; pos- terior wings with a fringe of pale hairs behind towards the base. Legs, including the coxse, pale honey-yellow ; the tarsi and most of the pos- terior tibiae fuscous. Abdomen short, ovate, polished; basal segment black ; longitudinally striated ; remaining segments pale fuscous, mar- gined behind with dark fuscous. Length 1 line ; expanse of wings 3 lines. Collection. — Dr. J. Gundlach. One specimen. 90 [January Aphidius longicornis, n. sp. Piceous ; base of antennae, tegulae, metathorax, legs, and base of abdomen, pale yellowish; antennae longer than the body; wings long, hyaline, iridescent. Head large, broader than the thorax, piceous-black, shining; anten- nae longer than the body, slender, fuscous, the two basal joints pale yellowish. Thorax piceous-black, convex above; scutellurn with a deep, transverse excavation in front; metathorax yellowish, with a cen- tral carina furcate behind ; tegulae pale yellowish. Wings long, hya- line, iridescent, slightly pubescent; nervures and stigma pale testaceous, the latter very slender ; a large, complete, subovate, radial cell ; two complete submarginal cells, the first large and directed obliquely in- wards, the second longitudinal, elongate and narrowed towards the tip. Legs long and slender, and including the coxae, pale yellowish-white; the tibiae slightly swollen, and pubescent at extreme tips, the tarsi longer than the tibiae, very slender, the extreme tips dusky. Abdomen elongate, subsessile, depressed, shining, piceous, the basal segment yel- lowish. Length 1 line; expanse of wings li line. Collection. — Dr. J. Glundlach. One specimen. Aphidius 1 pallipes, n. sp. Black; head rufo-piceous; antennae and legs pale yellowish ; wings hyaline: base of abdomen striated. Head subglobose, rufo-piceous, polished, face opaque, palpi whitish; antenna) nearly as long as the body, yellowish. Thorax piceous-black ; mesothorax with two deeply impressed lines confluent on the disk in a sculptured depression; scutellurn with a large, deep, transverse, sculp- tured excavation in front ; pleura uneven ; metathorax blackish, ru- gose, or reticulated with numerous elevated lines ; tegulae pale yellow- ish. Wings hyaline, slightly iridescent; nervures testaceous, stigma large and fuscous; a complete, very large, subovate radial cell; a large, irregular submarginal cell, with the short dividing nervures, beneath the base of the radial cell, subobsolete; discoidal cell large, subtriangular and complete. Legs, including the coxae, entirely pale yellowish-white. Abdomen subovate, depressed, piceous-black, the two basal segments above covered with fine longitudinal striae. Length 1 line; expanse of wings 2 lines. Collection. — Dr. J. Gundlach. One specimen. Aphidius 1 fulvus, n. sp. Uniform pale fulvous, polished, robust ; head tinged with fuscous ; antennae, except base, blackish; wings hyaline. Robust, uniform pale fulvous, polished; head transverse, rather broader than the thorax, tinged with fuscous; antennae longer than the 1865.] 91 body, piceous-black, several basal joints honey-yellow; mesothorax convex, smooth and polished, slightly indented on each side in front; scutellum smooth and polished, transversely excavated in front ; meta- thorax rugose; tegulae pale fulvous. Wings hyaline, iridescent; ner- vures and stigma fuscous. Legs paler fulvous than the body, tips of the tarsi dusky. Abdomen rather broadly ovate, smooth and polished, except the basal segment which is carinated and gradually narrowed to the base. Length 1 line; expanse of wings 2J lines. Collection. — Dr. J. Grundlach. One specimen. Fam. CHALCIDID^E. Gen. LEUCOSPIS, Fabr. Leucospis Poeyi, Guer. Leucospis Poeyi, Guer., Icon. Reg. An. iii, p. 414 ; LaSagra's Hist. Cuba, pi. 18, f. 4. Collection. — Ent. Soc. Philad. Two ( S 9 ) specimens. This species is parasitic upon Megachile Poeyi Gluer. Genus SMIERA, Spin. Smiera Lanieri, Guer. Chalcis Lasnierii, Guer., Icon. Reg. Anim. iii, p. 412, pi. 67, f. 4. Chalcis Lanieri, Guer., LaSagra's Hist. Cuba. Ins. p. 753. Collection. — Ent. Soc. Philad. Two specimens. Smiera coccinea, n. sp. Bright scarlet; vertex, occiput, most of antennae, tegulse, and four anterior legs, black; wings dark fuscous; scutellum transversely rugose. Bright scarlet, shining, pubescent; head black, the face, lower part of the cheeks, clypeus and mandibles, scarlet; antennae brown-black, inserted on the middle of the face, paler towards the tips which are testaceous, flagellum thickened at base. Thorax : prothorax and pleura roughly punctured ; mesothorax rather feebly and indistinctly punc- tured ; scutellum transversely rugose ; metathorax coarsely rugose ; tegulae black, shining. Wings ample, dark fuscous, costa black. Legs scarlet, pubescent; the four anterior tibiae, all the tarsi, and the poste- rior trochanters beneath, black; the hind coxae very elongate, their femora much swollen and armed beneath with a row of small subacute teeth, tipped with black, their tibiae cui-ved and acute at tips. Abdo- men small, subcorneal, smooth and polished, obtusely pointed at tip, scarcely compressed ; petiole about one-third the length of the remain- der of the abdomen. Length 3 lines; expanse of wings 7 lines. Collection. — Dr. J. Grundlach. One specimen. Allied to S. Lanieri, but is at once distinguished by the thorax, and the posterior coxae, femora and tibiae being entirely red, and the four anterior legs black. 92 [January Smiera intermedia, n. sp. Yellowish-ferruginous; abdomen scarlet: vertex, occiput, cheeks, antenn-e, tegulae, four anterior legs, posterior coxae above, and their tibiae and tarsi, black; wings fusco-hyaline. Yellowish-ferruginous, closely and deeply punctured, pubescent; head black, the face, inner orbits, clypeus and mandibles, pale ferruginous; antennas inserted on the middle of the face, stout, dull fuscous, scape shining black. Thorax closely and coarsely punctured ; the dorsal lines of the mesothorax deeply impressed; scutellum roughly punctured, with their posterior margin carinated ; metathorax coarsely rugose, with an acute spine on each side; tegular piccous, shining. Wings uniformly pale fusco-hyaline, slightly iridescent; nervures blackish. Legs bright yellowish-ferruginous, tinged with scarlet, pubescent; the four anterior femora and tibial piceous, pale at tips ; posterior coxae very elongate, with a broad exterior black stripe, their femora much swollen, stained on the outside with bright scarlet, and armed beneath with a row of small teeth tipped with black ; their tibiae and tarsi entirely black, the former curved and acute at tip. Abdomen small, ovate, convex, smooth and polished, scarcely compressed, bright scarlet; petiole nearly one- half the length of the remainder of the abdomen. Length 3 lines; ex- panse of wings 7 lines. Collection. — Dr. J. Gundlach. One specimen. Smiera ignea, n. sp. Reddish-orange; flagellura, central stripe on mesothorax, a small spot on each side of it, as well as the anterior and posterior margins, a central spot on metathorax, a round spot on posterior coxae above, and the extreme tip of ab- domen, black; wings hyaline; abdomen elongate, acuminate and pointed. Uniformly bright reddish-orange; antennas inserted on the middle of the face, scape long and slender, flagellum dull black, long and of uniform thickness. Thorax closely and rather deeply punctured ; the anterior and posterior margin of the mesothorax, as well as a central longitudinal stripe and a short line on each lateral lobe, black, the line on the anterior margin is somewhat thickened on each side of the mid- dle ; scutellum with a central longitudinal black line ; metathorax coarsely rugose, with a large black spot on the disk. Wings hyaline, or with a very faint dusky tinge, slightly iridescent. Legs color of the body, smooth and shining; the posterior coxa) elongate, robust at base, with a rather large round black spot above ; their femora much swollen and armed beneath with a row of about fifteen obtuse blackish teeth, the basal one rather large, the others minute; their tibiae curved, very acute at tips and margined within with black ; the tarsi orange-yellow. Abdomen elongate, fusiform, acute at tip, smooth and polished, black 1865.] 93 at the extreme tip; petiole short and stout. Length 23 lines; expanse of wings 4 lines. Collection. — Ent. Soc. Philad. One specimen. Smiera Gundlachii, n. sp. Luteous-yellow; antennae, spot on vertex, apical half of posterior coxae, and their tibiae except base, black; wings subhyaline, costa fuscous; scutelhun armed behind with two acute teeth. Luteous-yellow, slightly pubescent; a black spot on the vertex, cov- ering the ocelli, behind which it spreads across to the summit of the eyes; antennae inserted on the middle of the front, stout, of uniform thickness, dull black, the scape yellow. Thorax discolored with brown- ish ; prothorax obliquely striated ; mesothorax covered with fine trans- verse striae, somewhat oblique posteriorly; pleura coarsely punctured, slightly varied with yellow ; scutellum large and prominent, coarsely rugose, with an obtuse tubercle on the disk and two subacute flattened teeth on the posterior margin which is somewhat carinate ; metathorax coarsely rugose, with a large obtuse projection on each extreme side immediately beneath the hind-wings; tegulae dull luteous. Wings large, ample, subhyaline, varied with hyaline, the costa deeply stained with fuscous. Legs luteous-yellow, smooth and polished ; posterior coxae very elongate, the apical half beneath and the apical two-thirds above, as well as the trochanters, black, with a short, stout tooth above near the tip; posterior femora much swollen, and armed beneath with a row of small obtuse teeth, the basal one the largest; their tibiae curved, acute at tip, black except the base Abdomen short and sub- globose, smooth and shining, apical margins of the segments stained with pale ferruginous, with a large blackish stain above near the tip of the third segment; remaining segments retracted; petiole nearly as long as the rest of the abdomen. Length 4 lines ; expanse of wings 10 lines. Collection. — Dr. J. Gundlach. One specimen. A fine large species; the brown color of the thorax is probably oc- casioned by an accidental discoloration, as one of the middle legs is brownish, while the other is entirely bright yellow. Smiera Eubule, Poey, MSS. Luteous; vertex, antennae, spot on each side of thorax, most of mesothorax, large triangular spot on scutellum, posterior half of posterior coxeb, and spots on their femora, dull ferruginous: scutellum and metathorax each with two acute spines ; posterior femora armed beneath with four large teeth, the basal one very stout; wings subhyaline. Luteous-yellow, slightly pubescent; the space behind the antennae, vertex and occiput, brownish ; face sparsely punctured ; antennae in- serted on the middle of the front, ferruginous-brown, stout, the flagel- 04 [January lum subfusiform, tlie scape yellowish beneath. Thorax roughly and densely punctured, somewhat rugose; prothorax rugose, yellowish, with a transverse brownish spot on each side above ; mesothorax brown- ish, with a longitudinal line on each side of the disk, converging on the scutellum, and a broad line over the tegulae, yellowish ; pleura rather coarsely punctured, yellowish, with the suture between it and the pec- tus and a broad, deeply impressed, oblique, somewhat crenulated line beneath the wings, brownish; scutellum large and produced, yellowish, with a large triangular brownish mark on the disk, the posterior mar- gin truncate with a stout acute tooth on each side; metathorax roughly rugose, brown at base, very much produced on each extreme side and armed behind by two diverging, rather long, acute teeth; tegulae yel- lowish. Wings subhyaline. slightly tinged with fuscous, especially towards the tips. Legs luteous-yellow, smooth and shining, slightly pubescent ; posterior coxae very elongate, their apical half and the tro- chanters rufous ; posterior femora much swollen, armed beneath with four large teeth, the basal one much the largest and stoutest, the two middle ones more slender and acute, and directed backwards, the apical one broad at base and acute at tip ; a large rufous stain on the upper surface, another over the large basal tooth and running along the lower margin and covering all the teeth, which are tipped with black- ish ; posterior tibiae curved, acute at tip, the base stained with brown- ish-ferruginous and the inner margin blackish; extreme tips of the tarsi, dusky. Abdomen short, subcompressed at tip, smooth and pol- ished, pale luteous-yellow, more or less tinged with pale ferruginous, the second segment flattened in its anterior face with a narrow trans- verse, sometimes subobsolete, dorsal blackish band towards the tip, and the remaining segments sometimes indistinctly banded with fuscous; petiole almost half the length of the rest of the abdomen. Length 4 lines; expanse of wings 7 lines. Collection. — Ent. Soc. Philad. Lour specimens. This species destroys the larva of Oallulryas Eubule; it sometimes varies by having the prothorax above, the mesothorax and scutellum almost entirely brownish, and the posterior coxae rufous except the ex- treme base. Smiera pulchra, n. sp. Yellow ; antennae ferruginous-brown ; spot on vertex, occiput, disk of pro- thorax, large mark on mesothorax enclosing three or four yellow spots, most of pleura and metathorax, tips of posterior coxae, three spots on their femora, base of their tibise and bands on tip of abdomen, black; wings subhyaline; scutel- 1865.] 95 lum, metathorax, tip of posterior coxse above and their femora beneath, acutely toothed, the latter with four teeth. Bright yellow, pubescent ; spot on vertex, covering the ocelli and nearly the whole of the occiput, black ; antennae inserted on the middle of the front, stout, ferruginous-brown, the flagellum of uniform thick- ness, scape yellowish beneath. Thorax closely and rather roughly punctured ; spot on the disk of prothorax, a very large mark covering nearly the whole of the mesothorax and enclosing three yellow spots, and nearly the whole of the pleura, black ; scutellum produced, entirely yellow, armed behind with two stout subacute teeth ; metathorax black- ish, roughly sculptured, the lateral projections yellow, the posterior teeth rather long, acute and strongly divergent ; tegulae yellow. Wings subhyaline, slightly iridescent. Legs bright yellow, shining; posterior coxaa elongate, black at tips with an acute tooth above ; their femora much swollen, armed beneath with four large acute black teeth, the two middle ones the longest and directed backwards, a large spot on the lower margin over the two basal teeth, a smaller round spot on the upper margin, opposite the preceding and another spot at the tip, all black; posterior tibiae curved, acute at tip, black at extreme base; tarsi dusky at tips. Abdomen short, subglobose, slightly compressed, smooth and shining, the third and following segments more or less stained or banded with blackish, mostly interrupted on the disk; petiole more than half the length of the rest of the abdomen. Length 22—3 lines ; expanse of wings 4 — 5 lines. Collection. — Ent. Soc. Philad. Four specimens. Smiera nigropicta, n. sp. Yellow ; antennae, anterior and posterior margin of, and three longitudinal marks on the mesothorax, anterior suture of pleura, spot on scutellum, base of metathorax, large spot on posterior coxse, tip of their femora and base of their tibise, and dorsal bands on the abdomen, black; wings hyaline, iridescent; posterior femora armed beneath with a row of numerous small black teeth. Bright yellow, sometimes with an orange tinge, slightly pubescent ; extreme posterior margin of the head black ; antennae inserted on the middle of the face, stout, the flagellum of uniform thickness, blackish above, fulvous or yellowish beneath, as well as the scape which is long and cylindrical. Thorax closely and deeply punctured ; a small black spot on the anterior face of the prothorax, more distinct when the head is bent downwards; the anterior and posterior margins of the mesotho- rax black, as well as a longitudinal black stripe on each lobe, the cen- tral one narrowed at each extremity and dilated in the middle, the black on the anterior margin is also dilated on each side of the middle, and 9fi [January that on the posterior margin dilated on each side ; anterior suture of the pleura black; scutellum large, produced, deeply punctured, with an elongate black mark on the disk, pointed before, the posterior margin slightly carinated; metathorax reticulated with acute carinae. with a transverse basal black spot, the lateral teeth not distinct ; tegulse yel- lowish. Wings hyaline, iridescent; nervures fuscous. Legs yellowish, smooth and shining ; posterior coxas elongate, with a large black spot near the base above and a small acute tooth near the tip ; their femora much swollen, armed beneath with a row of about thirteen black teeth, very small and obtuse at tip and becoming gradually larger and more acute towards the base, the basal one quite large, stout and acute, near the tip and beneath it on each side a small black spot ; their tibiae curved, black at base and acute at tip; extreme tips of the tarsi black- ish. Abdomen short and subglobose in the % , and long and acuminate in the 9 ; smooth and shining, generally more or less black at the tip and banded with blackish on the disk of the second and following seg- ments, sometimes very indistinctly so; petiole about one-fourth as long as the rest of the abdomen in the % , much shorter in the 9 , the apical segments of which are acuminate and pointed. Length 9 , 3 — 3} lines ; S . 2' lines; expanse of wings 4 — 6 lines. Collection. — Ent. Soc. Philad. Three 9 , three £ specimens. Smiera palens, n. sp. Pale yellow: flagellum of antennae, a central stripe and a spot on each side of mesothorax, as well as its anterior and posterior margins, spot on scutellum. tip of metathorax, and stain on tip of abdomen, dusky or black; legs immacu- late, the posterior femora with a row of numerous small dusky teeth : wings hyaline, iridescent. Pale clay-yellow, slightly pubescent ; the extreme posterior margin of the head, and the ocelli, blackish ; antennae inserted on the middle of the fice, the scape slender, long, pale yellow, the flagellum fulvous or dusky, stout, but of uniform thickness. Thorax closely and rather finely punctured ; mesothorax with its anterior and posterior margin narrowly blackish, with a central longitudinal stripe dilated in the middle and a spot on each lateral lobe, also blackish; scutellum carinate behind, with a wedge-shaped blackish spot on the disk, pointed before, and on each extreme side a blackish oblique mark ; extreme lateral margin of the postscutellum slightly dusky ; metathorax rugose, its apex blackish ; tegulae pale yellowish. Wings hyaline, iridescent. Legs entirely pale clay-yellow, immaculate ; posterior coxas elongate, stout, with a small blackish tubercle above near the tip ; their femora much swollen, and armed beneath with a row of about thirteen or four- 1865.] 97 teen very small obtuse blackish teeth, the basal one not larger than the others ; their tibiae curved and acute at tip. Abdomen short, ovate, smooth and shining, more or less marked or stained with dusky towards the tip ; petiole nearly one-half as long as the rest of the abdomen. Length 1} — If line; expanse of wings 2} — 3} lines. Collection. — Ent. Soc. Philad. Four specimens. The smallest specimen varies by having the blackish marks of the mesothorax and scutellum nearly obsolete. Smiera immaculata, n. sp. Entirely pale yellowish ; antenna; slightly dusky at tips: wings hyaline, iri- descent; posterior femora armed beneath with numerous small dusky teeth, the tarsi blackish at tips: abdomen tinged with fulvous, petiole as long as the rest of the abdomen. Uniformly pale yellowish, slightly pubescent ; antennae inserted on the middle of the face, the scape long and slender, the flagellum more or less dusky above and towards the tip, Thorax immaculate, indis- tinctly punctured, the lobes of the mesothorax well defined. Wings hyaline, iridescent. Legs pale yellowish, tips of the tarsi blackish; posterior coxae very elongate; their femora swollen and armed beneath with a row of about thirteen or fourteen small teeth tipped with black, the basal one the largest; their tibiae curved, acute at tip. Abdomen small, subovate, tinged with fulvous, smooth and shining; petiole elon- gate, slender, as long as the rest of the abdomen. Length 1} line; expanse of wings 2j lines. Collection. — Ent. Soc. Philad. Two specimens. Distinguished from the preceding species by the absence of dusky spots and by the longer petiole of the abdomen, which is nearly twice as long in this species. Smiera petiolata, n. sp. Dull ferruginous, varied with black and yellowish; four anterior legs yellow: wings hyaline, iridescent: petiole of abdomen very long and slender, twice as long as the remainder of abdomen. Head yellowish, paler on the face, the sides of which are discolored with leaden; a black spot on each side of the front behind the antennae and before the ocelli ; occiput black, margined in front with ferrugi- nous; antennae inserted on the middle of the front, dusky-ferruginous, the scape short and tinged with yellowish beneath. Thorax finely and closely punctured, ferruginous, spotted with yellowish; mesothorax black, lateral margins of the central lobe ferruginous varied with yel- lowish, the outer half of the lateral lobes also ferruginous; prothorax ferruginous, with a yellowish line on the middle ; pleura dull ferrugi- 98 [January nous, with a deeply excavated oblique blackish line and a blackish spot on the anterior suture; scutellum yellowish-ferruginous, with a large dorsal blackish mark; metathorax yellowish-ferruginous, blackish on each side at base; tegulse pale yellowish. Legs: the two anterior pairs, including their coxae, pale yellowish ; posterior pair dull ferruginous, their coxae very elongate, swollen at base and gradually attenuated to the tips which are slender and toothed above, and stained within and towards the tip with blackish ; their femora much swollen and armed beneath with a row of about twelve small blackish teeth, the basal one the largest ; the upper and inner side are blackish, the former with a pale yellowish streak, and the outer side with a spot towards the tip and another over the basal tooth, of the same color; their tibiae curved, acute, stained on the middle and at tip with pale yellowish ; their tarsi pale yellowish, dusky at tips. Abdomen small and globose, smooth and shining, more or less marked above with blackish ; petiole very long and slender, twice as long as the rest of the abdomen, covered with fine transverse strhe, black, pale yellowish at both extremities. Length 1 : ; line; expanse of wings 2] lines. Collection. — Dr. J. Grundlach. One specimen. Easily recognized by the very long and slender petiole of the abdo- men. Smiera scutellaris, n. sp. Dull ferruginous: antennae, most of pleura, large spot on posterior coxte, part of the femora and tihipe, ami must of the abdomen, black : sides of the face, whole of scutellum, tips of posterior coxre, spots on their femora and tibise, and a spot on each side of abdomen above, pale yellowish ; wings subhyaline. Head ferruginous, closely punctured ; the orbits, face, except a cen- tral black spot, clypeus and mandibles, yellowish-white ; antenna) in- serted on the middle of the face, entirely black, scape long and slender, flagellum rather stout, of uniform thickness. Thorax very densely and roughly punctured, dull ferruginous ; prothorax margined with pale yellowish, with a black spot on the lateral truncation ; pleura blackish, with a pale spot beneath the wings ; scutellum large, somewhat de- pressed, entirely clay-yellow, its posterior margin subcarinate, and the spaces on each side ferruginous, margined behind with black and stri- ated; postscutelluni pale clay -yellow on the middle, blackish and striated on the sides; metathorax coarsely rugose, black, stained with rufous, the prominent sides dull ferruginous, blackish about the insertion of the posterior coxa3 ; tegulae luteous. Wings almost hyaline, very faintly tinged with fuscous, slightly iridescent, the costal nervure fuscous. Legs dull ferruginous; the four anterior coxae whitish; the femora. 1865.] 09 tibia) and tarsi, pale yellowish, the two former lined without and within with blackish ; posterior coxa) elongate, stout, with a large black spot above, the tips pale, with an acute tooth above; their femora much swollen, rufo-ferruginous, stained above and on the inside with blackish, a spot above at the tip, another on each side of the lower margin below the tip. and another one over the basal tooth, all whitish, the one on the inside below the tip is surrounded by blackish, lower margin armed with a row of fourteen or sixteen minute black teeth, the basal one the largest ; their tibia) curved and acute at tip, black, interrupted near the base and tips with whitish; tarsi pale yellowish, dusky at extreme tips. Abdomen ovate, slightly compressed, pointed at tip, smooth and shining, black, piceous above, rufous beneath; on each side of the third segment a whitish transverse spot; petiole stout, about one-third as long as the rest of the abdomen, pale yellowish-white. Length 2:, ! lines; expanse of wings -4} lines. Collection. — Dr. J. Gundlach. One specimen. Smiera flavopicta, n. sp. Black, varied with pale yellowish spots and marks ; wings subhyaline ; ab- domen elongate, acuminate and pointed at tij) ; hind femora armed beneath with a row of numerous small teeth. Black, slightly pubescent; the orbits, a large spot between the an- tenna), another above the base of each mandible, and the mandibles except tips, yellowish-white ; antenna) inserted on the middle of the face, long and black, whitish at the extreme base, flagellum stout, of uniform thickness, piceous, slightly paler at tips. Thorax opaque black, minutely and densely shagreened ; prothorax margined on the sides and behind with ferruginous, with six yellow spots on the anterior margiu, two approximate ones on the disk and two more distant ones on each side; mesothorax with an interrupted longitudinal line on each side of the disk and two spots over the tegula), yellow or yellowish-fer- ruginous; pleura entirely black, irregularly striated; scutellum broadly margined on each side with pale yellowish, which color is deeply in- dented with black on each side behind; postscutelluin stained with yel- lowish-ferruginous on the disk ; metathorax entirely black, coarsely rugose, more finely and somewhat reticulated on the prominent sides ; tegula) pale yellowish. Wings very faintly tinged with fuscous, slightly iridescent; costa blackish. Legs black; tips of the four anterior femora, their tibia), except the middle, and their tarsi, pale yellowish; posterior coxa) elongate, robust, black, yellowish at extreme tips, which have an acute tooth above; their femora much swollen, with three irregular, pale yellowish marks above near the tip, surrounded by ferruginous, 100 [January another elongate, irregular mark of the same color on the lower mar- gin beneath the tip, a spot beneath over the basal tooth, and on the middle a small spot near the tip, yellowish, lower margin armed with a row of sixteen or seventeen minute obtuse teeth, the basal one much the largest; their tibiae curved, acute at tip, piceous, with a spot near the base and another near the tip, both yellowish-white ; all the tarsi yellowish, dusky at tips. Abdomen elongate, acuminate and pointed at tip, shining black; petiole short and stout; the third and three fol- lowing segments with a transverse basal yellowish fascia on each side of the middle, with a yellowish spot on each extreme side, obsolete on the third segment; seventh segment with a round yellowish-white spot on each side ; apical segments pubescent ; beneath black, immaculate. Length If — 3 lines; expanse of wings 2h — 4 lines. Collection. — Ent. Soc. Philad., and Dr. .1. (lundlach. Two specimens. The small specimen varies by having two pale ferruginous spots on the vertex behind the ocelli, and a line of the same color on each side of the anterior ocellus; the lateral margins of the scuteliuin are ferru- ginous, with a large whitish spot on each side near the tip; the abdo- men is pale piceous. the yellowish-white markings similar and more distinct, with the addition of two spots of the same color on the disk of the second segment ; otherwise the color and markings are the same as in the large specimen. Genus EPITRANUS. Walker. Epitranus castaneus. n. sp. Entirely pale chestnut-brown, the thorax and abdomen above darker; abdo- men smooth and polished, petiole long and striated: antennae inserted close to the mouth; wings hyaline, apparently veinless. Pale chestnut-brown ; head flattened behind the ocelli, making the vertex somewhat prominent ; eyes small, rounded ; face rather broad and flattened ; antennae inserted very close to the mouth, pale ferrugi- nous, the scape long and slender, flagellum stouter and uniform in thickness. Thorax covered with uniform, close and rather deep punc- tures, very slightly pubescent ; scuteliuin rather prominent; metatho- rax flattened, with coarse longitudinal rugae, disk blackish and finely rugose, the tip narrowed to the insertion of the abdomen, extreme sides prominent and rugose. Wings pure hyaline, slightly iridescent, the nervures indistinct. Legs : the two anterior pairs pale ferruginous ; posterior pair darker, their coxae robust and subelongate, finely rugose ; their femora swollen and armed beneath with eight small black obtuse teeth and a large basal one tipped with black; their tibiae curved, acute at tips, somewhat carinate and forming a prominent ridge near 1865.] 101 the base. Abdomen subglobose or subovate, faintly compressed, smooth and polished, stained with piceous above ; petiole elongate, stout, lon- gitudinally striated, sometimes nearly as long as the rest of the abdo- men and inserted to the latter on a line with its dorsal surface. Length li — 2 lines; expanse of wings 2£ — 3-} lines. Collection. — Ent. Soc. Philad. Four specimens. Sometimes varies from dark-brown to very pale chestnut-brown. Genus CHALCIS, Fabr. Chalcis robusta. n. sp. Black, very robust; face golden-sericeous; tegulse and legs, except tbe coxae and the posterior femora within and a large black spot on the outside, bright yellow; wings nearly hyaline; abdomen subsessile, ovate and shining. Black, clothed with a short golden-yellow pubescence; head broader than the prothorax, the face, cheeks and occiput densely clothed with gulden pubescence ; antenna? inserted on the middle of the face, black, scape polished, flagellum robust, of uniform thickness and opaque. Thorax closely and rather deeply punctured, opaque ; scutellum some- what produced behind, carinate at tip which is densely clothed with golden pubescence, as well as the extreme sides near the base ; meta- thorax roughly rugose; tegulae bright yellow. Wings faintly -tinged with pale fuscous. Legs, excepting the coxte, bright yellow ; posterior coxa? robust, polished; their femora much swollen, black within except near the tip above and on the outside a large oblique black spot not reaching the upper margin, but confluent beneath with the black of the inside; in one specimen this spot is entire and not confluent beneath with the black of the inside, and the apical third within is yellow ; lower margin armed with a row of nine or ten small obtuse black teeth, and a large obtuse one near the base ; their tibiae curved, acute at tips ; tarsi black at tips. Abdomen subsessile. robust, convex, ovate, some- times faintly compressed and pointed at tip, smooth and polished, and the posterior margins of the apical segments more or less fringed with yellowish pubescence. Length 2f — 3-V lines; expanse of wings 5 — 6 lines. Collection. — Ent. Soc. Philad. Four specimens. Chalcis incerta, n. sp. Very closely allied to the preceding species, but differs as follows: — The pubescence is more silvery instead of golden ; the tegulae are yel- lowish-white ; the tibiae and tarsi are yellowish-white, the four anterior femora are black with their tips and sometimes their apical one-half or one-third yellowish-white, and the posterior femora are entirely black 102 [January except a large yellowish-white spot on the outside at tip ; the posterior tibiae are black at base, with a black band on the middle, broader within, and sometimes indistinct on the outside ; and the apical third of the posterior tarsi is black. Length 2 — 3 lines; expanse of wings o} — 5 lines. Collection. — Ent. Soc. Philad. Four specimens. One specimen in the collection of Dr. (lundlach, varies from the other four specimens by the tegulae, the four anterior legs, except their coxae and trochanters, the apical spot on the posterior femora, their tibiae except base, and their tarsi, all bright yellow, as in robusta. Genus PKASGONOPHORA. Westw. Phasgonophora insularis. n. sp. Black : prothorax, seutellum and legs, rufous ; wings hyaline, apical two- t'.iirds stained with pale fuscous. Female. — Head black, coarsely punctured, clothed with short, pale, glittering pubescence, and when viewed in front, the pubescence is more densely arranged in five longitudinal lines, viz : one between the insertion of the antennae, one on outside of the insertion of each anten- na, and one on each inner orbit of the eyes; mouth dull piceous; an- tennaa about as long as the thorax, dull black or piceous-black. Thorax deaply and coarsely punctured or rugose; prothorax gibbous, very coarsely punctured, rugose above, rufous, the anterior face depressed, transversely striated, blackish and clothed with pale glittering pube- scence, as well as the posterior margin ; mesothorax coarsely rugose, black, the posterior margin and the sutures between the middle and lateral lobes, margined with dense, short, pale, glittering pubescence ; pleura black, sometimes obscurely tinged with piceous, clothed with pale, glittering pubescence, and on each side a broad, deep, oblique, polished groove, with a few transverse striae about the middle ; seutel- lum rather strongly produced behind, rufous, coarsely rugose, its tip obtusely emargin ite ; metathorax black, depressed above, with a few well defined longitudinal polished carinae on the disk, interlaced by several transverse ones; at the base, immediately beneath the seutellum. a transverse carina enclosing a narrow space which is beautifully cre- nulated or covered with short, well-defined carinae; on each side, just behind the posterior wings, a lateral, acute spine, beneath this spine the sides of the metathorax are densely and coarsely punctured, and covered with short, pale, glittering pubescence, as well as the sides of the upper surf ice ; tegulae piceous, polished, margined without with obscure tes- taceous. Wings hyaline, the apical two-thirds stained with pale fus- 1865.] 103 cous ; the costal nerve and the stigma blackish-fnscons ; in some speci- mens there is a faint iridescent reflection. Legs, including the coxae, rufous, slightly pubescent ; posterior legs shaped as in Smiera, their femora with a large blackish stain on the outside near the base, their tilnre more or less varied with blackish, sometimes entirely piceous-black. Abdomen fusiform, black or piceous-black, smooth, shining, apex pro- duced and attenuated; the sixth segment has a few large, deep punc- tures; the sheath of the ovipositor is nearly as long as the abdomen. slightly compressed, broad at base, and gradually tapering to a point at tip; the base on each side has a few scattering punctures, becoming very dense beneath, and on each side of the groove beneath, which re- ceives the ovipositor, there is a row of deep punctures, continued to almost the tip; dorsal segments have a beautiful violet reflection in certain lights, more obvious in some specimens than in others, and in certain lights the disk is tinged with obscure rufous; sides of the seg- ments clothed with short glittering pubescence, more sparse on the first and second segments; beneath, the segments are more or less tinged with rufous. Length, including sheath of ovipositor, 4 J — 5 lines; ex- panse of wings 6 — 6 J lines. Male. — Resembles the female, except that the prothorax is obscurely rufous, the scutellum not so strongly produced and piceous, and the abdomen is almost entirely rufo-piceous, the apical margins of the apical segments are punctured, and their sides with a band of pale glittering pubescence at tip; the apical segment is obtuse and deeply punctured. Length ?>\ lines; expanse of wings 5 lines. Collection. — Ent. Soc. Philad. Three 9 , one % .specimens. Fam. chrysldim:. Genus ELAMPUS. Spin. Elampus viridis, n. sp. Bright metallic green, the head and abdomen with a blue reflection; grossly punctured, the abdomen, except apex, smooth ; scutellum armed behind with a broad, flattened, obtuse process; tarsi fulvous: wings subhyaline. Male? — Head bright metallic green, with a deep bluish reflection, especially on the face, which is broadly excavated ; the punctures deep and rather close, except in the excavation of the face which is finely rugulose ; mandibles pubescent, fulvous, deep blue at base ; antenna? piceous. the basal joint blue-green. Thorax deeply and closely punc- tured, bright metallic green, the collar tinged with deep blue, the nieso- thorax tinged with golden ; pleura, scutellum and metathorax much more closely punctured than the rest of the thorax ; scutellum large, 104 [January armed behind with a long, broad, flattened and obtuse process; poste- rior angles of the metathorax strong and acute; tegulae piceous, slightly tinged with green. Wings subhyaline, tinged with pale fuscous; ner- vures fuscous. Legs blue-green, the tarsi and the extreme tips of the tibiae, fulvous. Abdomen short and broadly ovate, convex, bright me- tallic green with a beautiful deep blue reflection in certain lights, the two basal segments smooth and polished, minutely and sparsely punc- tured under a strong lens, the apical segments strongly but not closely punctured; basal segment slightly excavated on the middle; extreme apex of the abdomen truncate, the upper margins reflexed, the end somewhat circular and concave, rufo-piceous ; beneath blue-green. Length 2 lines; expanse of wings 3| lines. Collection. — Ent. Soc. Philad. Genus HOLOPYGA, Dahlb. Holopyga Dohrni, Dahlb. Holopyga Dohrni. Dahlb. Hymen. Europ. ii. p. 48, pi. 3, fig. 56a. Collection. — Ent. Soc. Philad. Two % specimens. Genus HEDYCHRUM, Latr. Hedychrum vernale. n. sp. Bright metallic green ; disk of the mesothorax and of the abdomen blue ; an- tennae blackish ; apical third of wings fuliginous. Male. — Head bright metallic "Teen, with a faint bluish tinge about the front, the excavation to receive the antennae very minutely striated transversely, rest of the head deeply and very closely punctured ; man- dibles black, pubescent ; antennae black, the two basal joints green. Thorax metallic green, deeply and very closely punctured ; disk of the mesothorax more coarsely punctured, tinged with blue, extreme sides deeply concave and finely striated, the posterior angles long, acute and divergent; tegulae blue-green. Wings subhyaline, the apical third fuliginous, base of posterior wings hyaline; nervures black. Legs green, blackish in certain lights, slightly pubescent. Abdomen short and broad, subconvex, deeply and closely punctured, more sparse and less deep on the disk ; green, with a deep blue reflection, the dorsal surface deep blue; apical margin of third segment faintly sinuate, pu- bescent ; venter concave, brio-lit metallic green, the basal margins of the segments more or less black. Length 34 lines; expanse of wings 6 lines. Collection. — Ent. Soc. Philad. One specimen. Hedychrum cyaniventre, n. sp. Head and thorax green; mesothorax and abdomen dark blue; antennae black; wings fusco-hyaline. Male. — Head metallic green, with a bluish reflection on the front. 1865.] 105 deeply and very closely punctured, more finely below the front ; man- dibles fuscous, green at base, pubescent; antennae blackish, the basal joint blue-green. Thorax deeply and closely punctured, green, pube- scent, the mesothorax with a strong deep blue reflection ; metathorax rugose, deeply concave on each side beneath the posterior angles, which are rather short, acute and divergent ; tegulae green. Wings uniformly pale fuscous, the posterior wings hyaline at base; nervures fuscous. Legs green with a strong deep blue reflection, pubescent, the tarsi and the posterior femora blackish in certain lights. Abdomen short and broad, convex, slightly pubescent, deep brilliant blue, with a beautiful purple reflection especially on the disk of the second segment; punc- tures deep and close, less deep on the disk of the second segment ; third segment slightly tinged with green, the apical margin slightly undu- late; venter concave, polished, brilliant blue-green. Length 3} lines; expanse of wings 6 lines. Collection. — Ent. Soc. Philad. One specimen. Genus CHRYSIS. Linn, jj. Apical margin of third abdominal segment entire. Chrysis divergens, n. sp. Metallic green: the mesothorax and abdomen, especially the second segment, blue; antennas, except base, black: third segment of abdomen with a deep transverse excavated line before the apical margin, interrupted on the middle: wings subhyaline. Female. — Head green, tinged with blue on the front, deeply and very closely punctured, slightly pubescent ; on the front a transverse, sinuate carina, from which proceeds two equidistant, abbreviated carinae towards the ocelli; antennal cavity pubescent and minutely rugose; antenna? black, the two basal joints blue-green. Thorax deeply, coarsely and closely punctured, slightly pubescent, green, with a more or less deep blue reflection, especially on the mesothorax, which has two well impressed longitudinal lines on the disk ; sides of the pectus deeply excavated, golden-green, as well as the pleura, which is more grossly punctured than the rest of the thorax ; metathorax with the posterior angles stout, long, subacute and strongly divergent, the excavation on each side very deep and golden-green; tegulae blue-green. Wings almost hyaline, with a very faint fuscous tinge; nervures blackish. Legs blue-green, slightly pubescent; tarsi blackish. Abdomen oblong, scarcely broader than the thorax, deeply and rather closely punctured, green, deep purplish-blue on the disk of the second segment and on the apex of the third segment, which has a deep, transverse, foveate exca- vation just before the apical margin, and interrupted on the middle by 106 [January an elevated ridge ; apical margin entire ; venter deeply concave, blue- green, polished. Length 3 lines; expanse of wings 5 lines. Collection. — Dr. J. Guudlach. One specimen. \\. Apical margin of third abdominal segment armed with four teeth. Chrysis oblonga, n. sp. Elongate, green, abdomen deep blue; wings subhyaline: tbird abdominal segment witb a transverse fold before the apex, and behind the fold a row of deep punctures, apical margin witb four acute teeth. Fem,ale. — Head grossly punctured, bright metallic green, slightly bluish on the vertex, across which there is a sharply defined carina which continues down the orbits, on each side of the face, to the base of the mandibles; the excavation behind the antennae transversely striated; clypeus golden-green, depressed, the apical margin emarginate and coppery; cheeks carinate ; mandibles long, acute, bronze-black, carinate and green at base ; antennae black, with a slight purplish-blue reflection, the two basal joints blue-green. Thorax elongate, narrowed in front, grossly punctured, slightly pubescent, bright metallic green ; disk of mesothorax with two well impressed longitudinal lines, between which the surface is more or less blue; pleura golden-green; metatho- rax deep blue on the dorsal surface, the posterior angles large, diver- gent and acute; tegulas blue-green. Wings subhyaline, tinged with pale fuscous, especially towards the base, the nervures stout, very dis- tinct and blackish. Legs blue-green, pubescent. Abdomen oblong, convex, deeply, uniformly and closely punctured, of a brilliant deep azure-blue, tinged with purple at base and greenish on the sides; third segment more sparsely punctured at base, with a large transverse fold on the apical third, behind which, on each side, there is a row of deep punctures; the apical margin armed with four teeth, one on each ex- treme side, and two, more approximate and acute, on the middle; ven- ter deeply concave, brilliant blue-green, polished. Length 4 — 1-3 lines ; expanse of wings C — 7 lines. Collection. — Ent. Soc. Philad. Two specimens. Readily recognized by the narrow elongate form, and the brilliant deep azure-blue abdomen. Chrysis superba, n. sp. Large, robust, bright metallic green; disk of mesothorax and the abdomen azure-blue, the latter very large and deeply tinged with purple at the base of the segments ; wings subhyaline, with fulvous spots and lines in the cells. Male. — Robust; head bright metallic green, faintly tinged with blue on the vertex across which there is a sharp carina, slightly pubescent, closely punctured; the excavation behind the antennse finely punctured. 1865.] 107 tinged with blue; mandibles blackish, golden-green at base; cheeks carinate; antennae blackish, the two basal segments green. Thorax narrowed in front, broad behind, deeply and closely punctured, slightly pubescent, bright metallic green, the mesothorax more or less tinged with deep blue, especially on the disk between the two longitudinal impressed lines, where the color is of a deep purplish hue ; scutellum more grossly punctured, with a bluish tinge ; pleura and pectus golden- green, the latter deeply excavated on each side; metathorax with a deep bluish reflection, on each side of the middle a small, ovate, oblique ex- cavation and with two deep, approximate punctures at their tip, poste- rior angles large, broad, flattened, subacute and sparsely punctured ; tegulae blue-green. Wings almost hyaline, faintly tinged with fuscous, with fulvous spots or lines in the marginal, submarginal and discoidal cells; nervures and stigma stout and blackish. Legs bright metallic green, slightly tinged with blue, pubescent. Abdomen very large, broader than thorax, convex, deeply, closely and uniformly punctured, brilliant deep azure-blue, conspicuously purple on the dorsal base of the segments, especially of the second segment, and the sides slightly tinged with green; third segment with a slight transverse fold on the apical third, behind which there is a row of deep punctures; apical margin with four equidistant, rather long, acute teeth ; venter concave, brilliant blue-green, highly polisbed. Length 5^ lines; expanse of wings S lines. Collection. — Dr. J. Grundlach. One specimen. A large, broad and superb species, with the colors of the abdomen remarkably brilliant. Chrysis purpuriventris, n. sp. Blue-green; mesothorax and abdomen brilliant purple-blue ; antennae, except base, and the tarsi, blackish; wings fusco-hyaline. Male. — Head green, strongly tinged with blue, roughly and deeply punctured ; vertex with a sharply defined, transverse carina, which continues down the orbits on each side of the face, the excavation be- hind the antennae finely and closely punctured or somewhat rugulose ; mandibles, except base, blackish ; antennae blackish, the two basal joints green. Thorax not narrowed in front, deeply, coarsely and closely punctured, dark green more or less deeply tinged with blue, except the pectus and pleura which are bright green; mesothorax deep azure-blue, tinged with purple, with two tolerably distinct, longitudinal, impressed lines on the disk; scutellum and metathorax dark green, more or less tinged with blue, especially the latter, the posterior angles of which are 108 [January large, stout, divergent and subacute; tegulae green. Wings subhya- line, tinged with fuscous, especially towards the base, clearer at tips ; nervures distinct and fuscous. Legs blue-green, the tarsi blackish. Abdomen rather longer than the head and thorax and slightly broader, deeply, closely and uniformly punctured, of a brilliant deep azure-blue, strongly tinged with purple ; before the apex of the third segment a transverse row of deep punctures, the apical margin armed with four short, acute, equidistant teeth ; venter concave, green at base, and pur- plish-blue towards the apex. Length 3| lines; expanse of wings 4] lines. Collection. — Dr. J. Glundlach. One specimen. Readily recognized by the brilliant purplish-blue abdomen. §£§. Apical margin of third abdominal segment armed toith six teeth. Chrysis insularis, Guer. Chrysis insularis, Guer. Revue. Zool. 1S42, p. 148: LaSagra's Hist. Cuba. Ins. p. 7oj, pi. IS, fig. 5, 5a. Collection. — Dr. J. Grundlach. One % specimen. It is impossible to say whether the specimen which I have placed under this name, or the one described below (C. dubia), is the true insularis. as both seem to answer to the descriptions given by Gruerin. The specimen which I here consider as insularis, differs from tbe fol- lowing species by the mesothorax being more bluish, and the punc- tures of the abdomen not so dense, while in dubia they become very fine and dense towards the apical margins of the segments, and the spaces between the punctures are distinctly punctured, thereby giv- ing the abdomen a much rougher appearance than in insularis, although the interstices between the punctures of the latter are also punctured, but not so distinctly. The third segment of dubia is almost entirely green, while in insularis the apical margin only is green, and the six teeth on the apical margin in the latter species, are rather longer and more acute ; otherwise there is scarcely any difference be- tween the two species. Chrysis dubia. n. sp. Robust, green, dorsal surface of the second and third abdominal segments deep azure-blue; the face, pectus and pleura, golden-green; wings subh valine. Female. — Head broad, pubescent, green, faintly tinged with blue on the vertex across which, below the ocelli, there is a twice angular ca- rina throwing upon each side towards the ocelli a short carina; the excavation behind the antennae finely rugulose and brilliant golden- green, the punctures of the vertex and occiput are dense and coarse ; mandibles piceous, green at base ; cheeks carinate ; antennae blackish. 1865.] 109 the long basal joint green, the second and third joints green above. Thorax very slightly narrowed in front ; closely, uniformly and coarsely punctured, dark green above slightly tinged with bluish, the sides brighter green, the prothorax with a slight longitudinal impression on the disk ; mesothorax slightly tinged with dark obscure blue, the disk with two well impressed longitudinal lines ; metathorax azure-blue at the extreme tip, the posterior angles large, flattened, divergent, and acute at tip; tegulae bright green. Wings subhyaline, slightly tinged with fuscous especially towards the base, with a slight purple iride- scence ; nervures blackish. Legs green, pubescent, tarsi blackish. Abdomen broad and robust, densely and deeply punctured, the punc- tures becoming finer towards the sides and apex of the segments, and the interstices between the punctures finely but distinctly punctured ; dorsal surface of the first and second segments brilliant azure-blue, shading into metallic green on the sides, and in certain lights the apical margins are slightly greenish ; third segment less coarsely punctured, almost entirely bright metallic-green, tinged with blue at the base, more conspicuous in certain lights ; before the apex of this segment there is a transverse row of deep punctures, the apical margin pube- scent, with six short, acute, equidistant teeth, the lateral ones not so acute as the others; venter bright metallic green, polished. Length 5 lines; expanse of wings 62 lines. Collection. — Dr. J. Gundlach. One specimen. Closely allied to C. insularis, but besides the differences enumerated above, the form is more robust, the excavation behind the antennae is bright golden-green, and the face about the insertion of the antennae is not densely pilose as in insularis ; the second and third joints of the antennae are tinged with green, while in insularis they are entirely blackish. It may be easily distinguished by the much denser puncta- tion of the abdomen, which in insularis has a smoother appearance. Chrysis subviridis. n. sp. Obscure green, brighter beneath; mesothorax obscure; abdomen deep blue, strongly tinged with purple, the apical margins and sides of the segments tinged with green : apical margin of third segment with six long acute teeth ; wings fusco-hyaline. Male. — Head obscure green, grossly punctured, slightly pubescent; a twice angular transverse carina on the front below the ocelli ; the excavation behind the antennae finely rugose and bright metallic-green; sides of the face pilose ; mandibles, except base, blackish, the long basal joint green. Thorax obscure green above, brighter on the sides and beneath, densely and coarsely punctured; mesothorax obscure dusky, 110 [January especially in front, the two impressed dorsal lines distinct; metathorax tinged with blue behind, the posterior angles large, acute, slightly di- vergent ; tegulae green. Wings fusco-hyaline, paler at tips, with a faint purplish iridescence ; nervures fuscous. Legs bright green, slightly pubescent, tarsi piceous. Abdomen as wide as the metathorax and rather longer than the head and thorax, convex, sides parallel ; deeply and uniformly punctured, more dense on the sides and towards the apex ; deep azure-blue, strongly tinged with purple towards the base of the segments, the base of the third segment entirely purple, the apex of the segments and on the sides more or less greenish ; the purple base of the third segment finely and sparsely punctured, the remainder roughly punctured ; before the apex a transverse row of deep punctures, the apical margin armed with six long, acute, equidistant teeth; venter deeply concave, polished blue-green. Length 4 lines ; expanse of wings 6 lines. Collection. — Dr. J. G-undlach. One specimen. Chrysis consimilis, n. sp. The description of C. oblong a, given above, will answer for this spe- cies, except that the mesothorax is purplish-blue, the wings have a beautiful purple iridescence, and the apex of the abdomen is armed with six teeth instead of four. Collection. — Ent. Soc. Philad. One 9 specimen. Fam. MUTILLIDiE. Gen. MUTILLA, Linn. Mutilla senex, Guer. Mutilla senex, Guer. Icon. Reg. Anim. iii, p. 429, pi. 69, fig. 4; LaSagra's Hist. Cuba, Ins. p. 758. Collection. — Ent. Soc. Philad. Three specimens. Mutilla nigriceps, n. sp. Rufous: head, antennae, base and apex of abdomen, black, the latter with a broad pale yellowish band before the tip. Female. — Head black, clothed with dense black pubescence, that about the mouth, as well as the mandibles and palpi, piceous; antennae piceous, basal joint long and slightly curved, second small and subglo- bose, third three times as long as the second and widened at tip, the nine following joints subequal, each shorter than the third, slightly invo- lute, compressed and widened in the middle and narrowed towards the tip, which is pointed. Thorax broader in front, rufous, covered with large, deep, rough, confluent punctures, and clothed with long, erect, ochra- ceous pubescence, that on the anterior margin black and rather dense; 1865.] Ill cm each side behind the middle two rather large, obtuse tubercles, the posterior ones placed on the lateral base of the metathorax, which is narrowed towards the tip, convex and gradually sloped behind, the sides abrupt and densely pubescent. Legs piceous-black, densely clothed with ochraceous pubescence, very long on the femora ; the tibiae with a row of long acute black spines. Abdomen ovate, convex ; first seg- ment small, companulate, black, densely clothed with long and short ochraceous pubescence; second segment large, rufous, roughly and con- fluently punctured, the basal half above with a large black mark, densely clothed with black pubescence, with the posterior margin lobed on the middle, rest of the segment clothed with short ochraceous pubescence, and on the apical margin a band of dense ochraceous pubescence, some- times with a transverse patch of black pubescence on each side of the middle ; third segment densely clothed with ochraceous pubescence, with a slight mixture of black on the basal middle ; remaining segments densely clothed with black pubescence. Length 6 — 7 lines. Collection. — Ent. Soc. Philad. Three specimens. Mutilla rubriceps. n. sp. Dull rufous; thorax and three large spots on apex of second abdominal seg- ment, black ; apex of metathorax, legs, the first, sides of the second and all of the remaining segments of abdomen, densely clothed with ochraceous pube- scence. Female. — Head dull rufous, densely punctured, and clothed with pale ochraceous pubescence; mandibles, palpi and antenna? piceous or rufo-piceous, the latter proportioned as in the preceding species. Tho- rax deeply and coarsely punctured, especially on the sides, convex above, deep black, clothed with short, dense, black pubescence; on each side before the middle a small, flattened tubercle, and behind the middle a large obtuse, rufous tubercle tipped with black ; the pleura beneath and the metathorax behind densely clothed with a short, fine, appressed. pale ochraceous, sericeous pubescence. Legs piceous, densely clothed with pale ochraceous pubescence ; tibiae with a row of stout, acute spines. Abdomen ovate, convex above; basal segment small, quadrate, punctured, clothed with dense, pale ochraceous, silky pubescence ; se- cond segment large, dull rufous, tinged with brown, densely, deeply and confluently punctured, clothed with ochraceous pubescence, espe- cially on the extreme sides and on the sides of the apical margin where it is very dense and appressed ; on the apical middle of this segment a large black spot, clothed with black pubescence, and on each extreme side another blackish spot, bordered behind with the ochraceous mar- gin ; remaining segments piceous or rufo-piceous, densely clothed, 112 [January especially at tip, with a short, appressed, pale ochraceous pubescence. Length 6 lines. Collection. — Dr. J. Gundlach. One specimen. Mutilla palliceps, n. sp. Rufo-ferruginous ; antennae, legs and thorax above, brownish ; head, apical margins of the first and second, and sides of the remaining segments of abdo- men, ochraceous : abdomen with several black spots on the middle. Female. — Head densely clothed with pale ochraceous pubescence ; mouth and antennae rufo-piceous. the latter blackish towards the tips. Thorax densely and roughly punctured, blackish-brown above, clothed with reddish pubescence, beneath and behind rufo-piceous. sides without distinct tubercles ; pleura concave ; metathorax subquadrate, scarcely narrowed behind, the posterior face rather abrupt, the lateral margins dentate. Legs rufo-piceous, clothed with ochraceous pubescence; the tibiae with a row of long acute spines. Abdomen subovate, much nar- rowed towards the tip, convex above, closely punctured; basal segment small, somewhat companulate, black, with the posterior margin densely clothed with ochraceous pubescence, the base with a stout obtuse tu- bercle on each side; second segment large, rufo-ferruginous, thinly clothed with ochraceous pubescence, on the basal middle a subquadrate black patch, slightly margined on each side with ochraceous, the apical margin densely clothed with ochraceous pubescence, margined before with black, which is deeply cvenulated behind, especially on the middle ; remaining segments densely clothed with ochraceous pubescence, with a large patch of black pubescence on the disk of the third, fourth and fifth segments, largest on the third segment; beneath ferruginous, the apical margins of the segments fringed with ochraceous pubescence. Length 4} lines. , Collection. — Ent. Soc. Philad. One specimen. Mutilla Wilsoni, n. sp. Black; head, prothorax, pleura, base of metathorax, base of second and the third and fourth segments of abdomen, clothed with silvery white pubescence; wings hyaline, the anterior pair with the apex and a median band, fuscous. Male. — Deep shining black ; head small, subglobose, rather densely clothed with silvery-cinereous pubescence; eyes small, rounded, promi- nent and olive-green ; antennae black. Thorax closely punctured, the prothorax broad and rather densely clothed with silvery-white pube- scence, as well as the pleura ; mesothorax deeply punctured, clothed with short black pubescence ; scutellum clothed with long cinereous pubescence, with its anterior margin flattened, smooth and shining, and armed on each extreme side with a stout tooth, obtusely bifid or constricted 1865.] 113 at tip ; postseutellum silvery on the middle and sides ; metathorax co- vered with numerous interlacing, well-defined carina;, forming many small, irregular cells, the base is broadly clothed with appressed, sil- very-white pubescence; tegulae black, polished. Wings hyaline; the anterior pair with a median transverse band, and the apical fourth dark fuscous ; nervures blackish ; marginal cell short, truncate at tip ; two complete submarginal cells, the second largest and receiving the first recurrent nervure near the base; posterior wings hyaline, slightly dusky at tips. Legs slender, black, clothed with whitish pubescence; apical spurs of the four posterior tibiae long and whitish. Abdomen black, the first segment small, narrow at base and swollen at tip, roughly punc- tured, with a small tubercle on each side of the base and middle, apical margin densely clothed with silvery-white pubescence; second segment large, convex, shining black, finely punctured, clothed with black pu- bescence, the basal third with silvery-white pubescence; third and fourth segments densely clothed with silvery-white pubescence, the re- maining segments with dense black pubescence. Length 4f lines; ex- pause of wings 8'i lines. Collection. — Ent. Soc. Philad. One specimen. It gives me pleasure to dedicate this elegant species to Dr. Thomas B. Wilson, to whom this Society is indebted for placing in its posses- sion one of the finest collections of Cuban Hymenoptera extant. Genus METHOCA, Latr. Methoca Poeyi. Guer. Mcthoca Poeyi, Guer., Icon. Reg. Anim. Ins. p. 430 'J, 9; LaSagra's Hist. Cuba, Ins. p. 758, pi. 18, fig. 8, % 9 . I have not seen any specimens of this insect, but Prof. Poey informs me that he collected, about twenty years since, both £ and 9 , and sent them to Mr. Guerin, who has described and figured them. Prof. Poey says: "I have seen the 9 come out of a hole pierced in an earthy wall; the % has taken the 9 upon the margin of the hole ; I have seen the coitus from the commencement to the end." Fam. SCOLIAD^E. Gen. MYZINE, Latr. Myzine nitida, Smith. Myzine nitida, Smith, Brit. Mus. Cat. Hym. iii, p. 77, % . Collection. — Ent. Soc. Philad. Two % specimens. The three specimens before me answer exactly to Mr. Smith's de- scription of M. nitida (from Jamaica), except that the abdomen is beautifully iridescent, and the length is 7 5- — 8 lines, instead of 5 — 5'] 114 [January lines. One specimen (Coll. Dr. Grundlach), is more robust than the other two, and the yellow markings are more strongly developed ; otherwise there seems to be no difference. Myzine albopicta. u. sp. % . Black; inner orbits, clypeus, mandibles, spot on each side of prothorax, its posterior margin, two spots on pleura, spot on postscutellum, spot on ante- rior and posterior coxje, line on outside of four anterior tibise, spot on posterior femora beneath, and spots or lines on the apical margins of abdominal seg- ments, all whitish; wings hyaline, dusky at tips. Male. — Black, clothed with a thin pale pubescence; head finely punc- tured ; face prominent between the antennte, with a short, deep, longi- tudinal groove on the middle, not reaching the ocelli ; the clypeus, mandibles, except tips, and the narrow inner orbits, extending from the lower half of the sinus to the clypeus, whitish; palpi pale; antennae longer than the head and thorax, thickened, dull black. Thorax shining black, minutely punctured; narrow posterior margin of the prothorax, and an elongate spot on each side anteriorly, white ; mesothorax with two abbreviated, longitudinal, well impressed lines on the disk ; pleura densely and finely punctured, an elongate, subcuneiform spot on each side anteriorly, and a rounded spot on each side posteriorly, white ; scutellum entirely black, minutely punctured; postscutellum with a transverse, subquadrate white spot on its disk ; metathorax rounded above and behiud, densely and finely punctured; tegulae shining black. Wings long and ample, hyaline, beautifully iridescent, slightly dusky at tips; nervures black. Legs black, more or less tinged with piceous; the anterior coxae with a rounded white spot beneath, the middle coxal plates margined wi€h whitish, and the posterior coxae with a white spot above and a line beneath of the same color; the four anterior tibire ex- teriorly, the whole of the anterior tarsi, and a spot or line on the poste- rior femora at tip beneath, white ; tibial spurs also white ; tips of all the tarsi tinged with ferruginous. Abdomen black, polished, with a faint bluish reflection and a few scattered punctures ; a transverse spot on each side of the first segment at tip above, a very narrow, sinuous, more or less interrupted line on the apical margins of the second, third and fourth segments above, and a spot on each extreme side beneath, white; apical segment depressed above, deeply notched at tip, receiving the long, recurved, acute, apical tooth. Length 5 lines; expanse of wings 8 lines. Collection. — Dr. J. Grundlach. One specimen. Closely allied to M. nitida, but is smaller, differently marked, and the legs black instead of rufous. 1865.] 115 Myzine lateralis, n. sp. 9 . Black ; two spots above base of antennae, spot beneath wings, postscutel- lum, and a spot on each side of the four basal segments of abdomen, deeply emarginate within, yellow; wings tinged with fuscous. Female. — Black, shining, sparsely clothed with whitish hairs ; head deeply and closely punctured between the ocelli and antennas, feebly and very sparsely so on the cheeks and behind the ocelli; just above the insertion of each antenna, a yellowish spot; antennas black, the basal joint clothed beneath with long pale hairs. Thorax shining; prothorax sparsely punctured, deeper on the sides, finer and closer on the disk, and on each side on the anterior margin an obscure dull fer- ruginous spot, sometimes obsolete ; mesothorax very sparsely and feebly punctured, with two deep approximate striae on each side opposite the tegulas, and not reaching the anterior margin ; on each side behind the outer stria a small yellowish or ferruginous spot, and on the disk be- tween the two inner striae a large ferruginous mark, deeply notched in front, and sometimes obsolete ; extreme sides of the prothorax finely striated ; pleura deeply punctured, with a large yellow spot on the an- terior margin beneath the wings ; scutellum with a few scattered punc- tures ; postscutellum with a transverse yellow or ferruginous line ; metathorax pruinose, on the verge of the truncation several transverse acute slightly undulating carinas, and the sides finely, densely and somewhat obliquely striated; tegulas piceous, edged with testaceous. Wings subhyaline, tinged with fuscous, especially the apical half; ner- vures testaceous. Legs shining, black, rather densely clothed with pale glittering hairs; tarsi rufo-piceous. Abdomen black, polished, very sparsely and feebly punctured; on each side of the apex of the four basal segments a large yellow spot deeply emarginate within, so that the yellow continues inwardly for a short distance along the apical margin in a narrow line slightly thickened at tip, the spot on each side of the basal segment is sublunular and not so deeply emarginate as those on the second and third segments, that on the second is largest, and that on the fourth segment smallest and sometimes reduced to a mere line; apical segment depressed, densely and finely rugose, pitted with deep punctures and clothed with brownish subdepressed hairs, the apical and lateral margins are broad and reflexed; beneath piceous, polished, the apical half of the segments deeply and closely punctured and clothed with pale pubescence. Length 8 lines ; expanse of wings 12 lines. Collection. — Ent. Soc. Philad. Two specimens. 116 [Januvrt Myzine striata, n. sp. 9 ■ Black : two spots above base of antennae, two spots on prothorax, two spots on each side of pleura, spots on postscutellum, a large bifid mark on each side of metathorax, yellowish ; abdomen marked much as in lateralis ; meta- thorax deeply striated; wings subhyaline. Female. — •Black; clothed with pale glittering pubescence, longer and more dense on the under surface ; head closely, deeply and uni- formly punctured, the cheeks beneath clothed with long pubescence ; immediately above the insertion of the antennae are two confluent, yel- lowish-ferruginous spots; clypeus depressed, finely punctured; man- dibles piceous, shining, fringed beneath with long yellowish pubescence; antennas tinged with dull ferruginous, the basal joint black, shining and pubescent. Thorax dull black, finely and closely punctured ; pro- thorax opaque, very finely punctured, interspersed with larger punc- tures, densely clothed with very short pale sericeous pubescence, on each side anteriorly a transverse, obscure yellowish mark or line, the extreme sides covered with fine longitudinal striae ; mesothorax de- pressed, shining, with deep scattered punctures, stained on the disk with obscure rufous, on each side of the disk two impressed lines, the inner one the deepest, and not reaching the anterior margin which is smooth and impunctured; scutellum opaque, closely punctured, the postscutellum with a transverse yellowish spot; pleura prominent late- rally, closely and deeply, punctured densely clothed with short, pale, glittering pubescence, two large obscure yellowish spots on each side, one anteriorly and the other posteriorly ; metathorax dull black, cov- ered at extreme base, with deep transverse strias or acute carinae, the posterior face is abrupt, flattened and covered with finer striae, diverg- ing from the tip in a semicircular direction towards the sides; on each side a large obscure yellowish mark, deeply indented with black on the angulation. Legs piceous or piceous-black, shining, clothed with pale pubescence ; tibial spurs white ; the four posterior tibiae densely cov- ered on the outside with short spines. Abdomen shaped and marked as in M. lateralis, except that the mark on each side of the second seg- ment above is larger, scarcely emarginate, and has just above it a small yellowish spot; beneath black, polished, and clothed with long pale pubescence. Length 7 lines; expanse of wings 10 lines. Collection. — Dr. J. Gundlach. One specimen. Very similar to M. lateralis, but is at once distinguished by the dif- ferent sculpture of the metathorax. 1865.] 117 Myzine apicalis, n. sp. %. Black; clypeus, mandibles, scape of antennae beneath, collar, anterior margin of mesothorax and spot on its disk, two spots on pleura, lines on scutel- lums. lunate spot on each side of metathorax, legs and apical margins of abdo- minal segments, yellow or ferruginous: apex of abdomen and venter ferrugi- nous; wings hyaline, slightly dusky at tips. Male. — Black, shining, slightly iridescent, thinly clothed with pale pubescence; clypeus prominent, densely and finely punctured, ferrugi- nous ; labrum yellow; mandibles ferruginous at base, yellow in the middle and black or piceous at tips; narrow lower, inner and outer or- bits obscure ferruginous; palpi pale; antenna? rufo-piceous, extreme apex fulvous, the basal joint beneath yellow. Thorax finely and closely punctured ; line over the collar dilated on the sides, anterior margin of mesothorax, a spot on its disk, a large spot on the pleura anteriorly and another posteriorly, and a transverse curved line on the scutellum, fer- ruginous or yellowish-ferruginous; a transverse spot on postscutellum and a deeply emarginate spot on each side of the metathorax, yellow; tegulae ferruginous margined within with yellow. Wings hyaline, glossy, slightly fuscous at tips ; nervures testaceous. Legs ferruginous, the anterior tibiae and all the tarsi, yellowish ; posterior coxae piceous. margined with yellowish-ferruginous. Abdomen black or piceous-black. shining ; the five basal segments each with an apical yellow fascia more or less sinuate anteriorly, those on the third, fourth and fifth segments indented on each side anteriorly, the last one very narrow; two termi- nal segments ferruginous, the apical segment deeply notched at tip, receiving the long recurved apical tooth which is blackish towards the tip ; beneath ferruginous, the basal segment black with two yellow spots on the middle, the four following segments with a lateral yellow spot, minute on the fifth segment. Length 51 lines; expanse of wings 8-| lines. Collection. — Ent. Soc. Philad. One specimen. Genus TIPHIA, Fabr. Tiphia argentipes, n. sp. Black, polished; sides of abdomen and the legs clothed with silvery pube- scence ; wings subhyaline. Female. — Black, polished, thinly clothed with pale glittering pube- scence ; head covered with rather deep and close punctures ; the face and cheeks with silvery-sericeous pubescence; mandibles black, po- lished, pubescent beneath; antennae piceous, the scape black and pube- scent. Thorax : prothorax deeply and rather densely punctured, its posterior margin smooth and polished, the lower half of the sides finely 118 [January striated ; rnesotliorax with scattered deep punctures, and a short, deep, longitudinal stria on each side opposite the tegulae; scutelluni margined behind by a row of deep punctures ; metathorax with a few scattered feeble punctures, bounded on the sides and behind by an acute carina, the disk with three approximate carinae, the central one sometimes not reaching the posterior carina, lateral truncation polished, obliquely striated, posterior truncation finely rugose on the sides; tegulse black, smooth and polished. Wings subhyaline, slightly stained with fuscous ; nervures fuscous. Legs black, shining, the tibiae and tarsi densely clothed with a glittering silvery pubescence. Abdomen black, polished ; first and second segments with a few scattered punctures, more dense on the apical margin of the latter; third, fourth and fifth segments more closely and deeply punctured, the apical margins, especially on the sides, fringed with long, pale glittering pubescence; apical segment depressed, rugose and pubescent, the apical margins reflexed ; beneath rather densely punctured, the apical margins fringed with pale glitter- ing pubescence. Length 5 — 5o lines; expanse of wings 7£ — 8 lines. Male. — Resembles the female, but more sleuder and hairy; the punc- tures of the mesothorax and abdomen deeper and closer, especially to- wards the apex of the latter, and the wings are hyaline, with a slight fuscous tinge about the tip, especially in the marginal cell, which is. as • usual, closed, and the stigma large and black. Length 4 lines; expanse of wings 6 lines. Collection. — Ent. Soc. Philad. Two 9 , two S specimens. Genus SCOLIA, Fabr. Scolia (Elis) atrata, Fabr. Scolia atrata, Fabr., Ent. Syst. ii, p. 228; Syst. Piez. p. 239. Burin. Abh. Nat. Ges. Halle, i, p. 23. Colpa atrata, St. Farg. Hym. iii, p. 535. Scolia micans, Guer., Voy. Cog. Zool. ii, pt. 2, p. 251. Beauv. Ins. Afriq. et Ame'r. p. 258. pi. 10, fig. 3 9 . Collection. — Ent. Soc. Philad. Numerous % and $ specimens. Scolia (Elis) trifasciata, Fabr. Tiphia trifasciata, Fabr., Ent. Syst. ii, p. 246 % ; Syst. Piez. p. 235. Scolia trifasciata, Klug, Weber & Mohr, Beitr. i, p. 32. Sauss. Ann. Soc. Ent. Fr. 3e ser. vi, p. 245. Collection. — Ent. Soc. Philad. Seven 9 , eight % specimens. The females of this species vary much in size and markings. The normal variety is entirely black, except the large yellow or yellowish- ferruginous marks or bands on the three first dorsal segments of the abdomen, and the lateral transverse spot on each side of the second and 1865.] 119 third ventral segments; of this variety I have before me five specimens, three of which are 10? lines long, while the other two are 9 and (U lines long. Another specimen (7 lines long) varies in having a trans- verse yellow line on the postscutellum, and another on the apical mar- gin of the fourth dorsal segment of the abdomen ; the second and third ventral segments have each a broad apical yellow band, more or less interrupted on the middle; the prothorax has also an obscure yellowish spot on each side anteriorly. Another specimen (also 7 lines long), varies considerably from the others, and may possibly be a distinct spe- cies ; it is not quite so robust ; both the scutellum and postscutellum have a broad transverse yellow line, as in the males, while the bands on the three first dorsal segments of the abdomen are much narrower than in the other specimens, and instead of being broadly and deeply euiar- ginate in the middle anteriorly, they are merely obtusely emarginate on each side ; the apical margin of the fourth dorsal segment is narrowly yellowish, as is also those of the second and third ventral segments, but more widely interrupted in the middle than in the preceding species otherwise there seems to be no difference. The males vary in length from 4? to 8i lines ; all have four yellow- ish (mostly lemon-yellow) bands on the dorsal surface of the abdomen (segments 1 — i), very much as in the males of S. plumipes, while the clypeus, anterior margin of the thorax, scutellum and postscutellum, and a line on all the femora and tibiae, are yellow in all the specimens before me. Scolia (Elis) fulvohirta, n. sp. Black, densely clothed with rufo-fulvous pubescence ; tibiae and tarsi rufo-fer- ruginous : wings subhyaline, orange-yellow along the costa, with a dark cloud near the tip; 9 with a large spot on each side of prothorax, and one on each side of the four basal segments of abdomen, dull yellow; % with clypeus, two spots oh scutellum, line on postscutellum, and apical margins of the three or four basal segments of abdomen yellowish, the apical segment above silvery. Female. — Black; head shining, clothed with rather long rufo-fulvous pubescence, dense on the face and occiput; vertex smooth and polished, rest of the head with a few scattered punctures ; mandibles piceous ; antennae black. Thorax above densely clothed with rather long rufo- fulvous pubescence ; collar with a pale yellowish spot on each side ; prothorax grossly punctured, with a large yellow spot on each side ; mesothorax grossly and closely punctured, a smooth shining space on the disk, divided in the middle by a broad punctured line ; scutellum and postscutellum smooth and shining, with a few deep scattered punc- tures ; pleura and metathorax densely clothed with long, pale, golden- 120 [January yellow pubescence, the lateral and posterior truncations of the latter shining, with a short, appressed. pale silky pubescence ; tegulae ruf'o- t'erruginous. Wings pale yellowish hyaline, with a beautiful violet iridescence, the costa broadly orange-yellow, with a dark fuscous cloud near the tips ; nervures fuscous. Legs black ; the coxae, trochanters and femora clothed beneath with long pale yellowish pubescence; apical margin of the femora, and the tibiae and tarsi entirely rufo-ferruginous. densely clothed with long rufo-fulvous pubescence, very long and bristly on the tarsi. Abdomen velvety-blajjk, silvery-sericeous when viewed in certain lights, clothed with a thin, long, paie pubescence; on each side of the basal segment a large, transverse, apical, deep yellowish spot, almost meeting on the disk; second segment with a large, subtri- angular, apical, deep yellow spot on each side, and the third segment with a transverse mark along the apical margin, slightly dilated at the tip; remaining segments shining black, deeply punctured towards the apex and densely fringed with rather long rufo-fulvous pubescence ; apical segment depressed, rugose and densely clothed with short, ap- pressed, rufo-fulvous pubescence ; beneath shining, black, the secoud, third and fourth segments each with an apical yellowish band inter- rupted on the disk and densely fringed with long yellowish pubescence, the apical segments with rufo-fulvous pubescence. Length 10 lines; expanse of wings 10 lines. Male. — Black, with a bluish iridescent reflection, clothed with a short golden-yellow pubescence, finely and closely punctured; the pu- bescence of the head long, dense on the face; clypeus and base of man- dibles yellow, the former with a blackish spot or stain on the disk; antennae entirely dull black, longer than the head and thorax. Tho- rax : on each side of the prothorax a large yellow spot, connected by a transverse yellow line in front of the mesothorax ; in one specimen the whole of the prothorax is yellowish ; the mesothorax immaculate, ex- cept a small spot on each extreme side just behind the teguke ; scutel- lum smooth and polished, with two yellow spots near the base, some- times confluent and forming a broad band, the postscutellum with a broad transverse yellow line ; pleura and metathorax clothed with a dense fine silvery or golden-sericeous pile; tegulae ferruginous, with a yellow spot in front. Wings subhyaliue, with a brilliant golden gloss, and slightly iridescent in certain lights, the costa is broadly tinged with yellowish-fuscous, becoming dusky near the tips; nervures fuscous. Legs slightly pubescent; coxae and trochanters black, silvery-sericeous beneath ; femora also black, with a yellow line beneath ; tibice and 1865.] 121 tarsi rufo-fulvous, with pubescence of the same color. Abdomen shin- ing black, with a beautiful iridescent reflection, clothed with a deep yellowish pubescence, which becomes deep-fulvous at the apex, the punctures distinct and closer towards the tip ; basal segment with a broad, apical, deep yellow band, sometimes occupying the apical half of the segment, and emarginate in front ; second and third segments each with a narrow, apical, sinuate, deep yellow band, continued beneath and emarginate on the middle both above and beneath ; in one specimen the bands are broader and somewhat similar to the markings on the female ; apical margin of the fourth segment, and the remaining seg- ments obscure rufo-fulvous ; apical segment above silvery-sericeous ; in one specimen the second ventral segment is almost entirely yellow- ish, and the apical margins of the remaining segments are obscure yel- lowish. Length 8 J lines; expanse of wings 14 \ lines. Collection. — Ent. Soc. Philad. Two ? , two % specimens. Fam. POMPILLD^L Genus POMPILUS, Fabr. Sec. 1. — Wings mostly ferruginous or yellowish. * Body black or blue. Pompilus ignipennis, n. sp. Black; abdomen tinged witb blue; antennae orange-yellow; wings bright ferruginous, the apex more or less ferruginous; legs spinose. Female. — Dull black, slightly tinged with bluish, clothed with scat- tering black pubescence; face and clypeus somewhat purplish in certain lights, the latter prominent; antennae oi'ange-yellow, involute, the basal segment slightly dusky. Thorax dull black, with a slight blue or violet reflection ; metathorax abruptly rounded behind, with coarse, deep, transverse striae, especially on the sides and behind, obsolete at the base, these striae are less distinct in the smaller specimens, the middle with a shallow longitudinal furrow. Wings bright ferruginous, more or less fuliginous at the base and apex. Legs black, tinged with bluish, all the tarsi spinose ; the intermediate tibiae with a double row of short spines, the posterior pair serrate, also with a double row of short spines ; the inner apical spine of the posterior tibiae densely ciliated near the base. Abdomen smooth, with a changeable obscure bluish, greenish and purplish reflection, the apex clothed with rather long fuscous pube- scence. Length 6* — 9 lines; expanse of wings 10 — 15 lines. Male. — Resembles the female, but is much smaller and slenderer, the antennae longer and not involute, the wings more deeply and broadly fuliginous at tips, the legs slenderer and less spinose, and the metatho- 122 [January rax not transversely striated. In two of the smaller specimens the an- tennae and most of the wings are pale yellowish, and the legs piceous. Length 3^ — 6 lines; expanse of wings 6} — 10 lines. Collection. — Ent. Soc. Philad. Three $ , four % specimens. This seems to belong to the subgenus Pn'ocnemis, Schiodte. and may possibly be identical with P. Jtammipennis, Smith. ** Body fuscous or ferruginous. Pompilus Gundlachii. n. sp. Fusco-ferruginous ; apical half of antennae black, the basal half and the legs fulvous and spinose ; wings deep yellowish, the apical margins fuliginous. Female. — Fusco-ferruginous, strongly sericeous, thinly clothed with pale pubescence ; the orbits and clypeus paler than the vertex ; the cly- peus large, broad, and truncate at tip; mandibles large, black at tips; antennae not involute, the five basal joints fulvous, the remainder black, first joint short and robust, third joint very long. Thorax rounded in front; prothorax margined behind with yellow, broadly so on the mid- dle ; lateral margins of the mesothorax obscure yellowish ; pleura with an obscure yellowish stain above the middle coxae ; scutellum slightly prominent; postscutellum yellow; metathorax strongly sericeous, yellow at extreme tip, short, its upper surface gently sloped to the tip; tegulse deep yellowish. Wings large, deep yellowish-hyaline, the apical mar- gins fuliginous. Legs fulvo-ferruginous, sericeous ; anterior tarsi cili- ated with long, slender spines, the intermediate and posterior tibiee and tarsi covered with rather long, scattered spines. Abdomen oblong-ovate, subdepressed, smooth, dull fusco-ferruginous, sericeous; a spot on each basal side of the second segment, and the basal half of the third seg- ment narrower in the middle, obscure yellowish; apical segments thinly clothed with long, black pubescence. Length 9| lines; expanse of wings 16 lines. Collection. — Dr. J. Grundlach. One specimen. Pompilus concinnus, n. sp. Fusco-ferruginous, variegated with bright yellow; wings yellowish-hyaline, the costal two-thirds of the anterior pair fuscous; legs yellow and black, spi- nose. Female. — Head bright yellow, minutely and beautifully sculptured. slightly pubescent, face flat; a spot on the vertex covering the ocelli, and extending each side in a narrow line to the summit of the eyes, two approximate, parallel lines on the middle of the front, from the ocelli to the base of the antennae, and dilated in the middle, and most of the occiput, fuscous or blackish ; clypeus broad, large, its anterior margin slightly sinuate, its basal middle with an elongate subquadrate 1865.] 123 space margined with fuscous, this is sometimes obsolete ; mandibles black at tips; antennae bright yellow, involute, the second and third joints more or less fuscous. Thorax fuscous, sericeous; collar with a yellow spot on the disk and one on each side ; prothorax broadly mar- gined behind with bright yellow, and irregularly so on the lateral mar- gins ; mesothorax with two central longitudinal lines confluent behind, and forming a large quadrate spot; pleura fuscous and black, with two large yellow spots, the lower one the largest; scutellum fuscous, with a large bright yellow spot on each side, and its apical margin obscure fer- ruginous; postscutellum entirely bright yellow; metathorax short, gra- dually and gently sloped behind, fuscous, with a subtriangular, bright yellow spot on each extreme basal corner, and a large obscure, yellowish transverse mark occupies the apical half, the prominent apical margin bright yellow; tegulae dull yellowish. Wings yellowish-hyaline, the costal two-thirds of the superior pair fuscous, sometimes yellowish-fus- cous, darker at the tip, and slightly violaceous. Legs bright yellow . base of the middle coxae, the hind coxae except tips, the trochanters base of the anterior femora, the four posterior feuiora except tips, and the apex of the posterior tibia), black ; all the tibiae and tarsi rather thickly spinose ; incisures of the tarsal joints, and the claws, dusky; Abdomen fusco-ferruginous, sericeous, subdepressed ; basal margins of the second, third and fourth segments, broader on the sides, yellowish, sometimes obscure; apex slightly pubescent. Length 7 lines; expanse of wings 13 lines. Male — liesembles the female, but much smaller, the antennae porrect, thickened, compressed, subcrenulate beneath, fulvous, with the six apical joints black; the markings sometimes lemon-yellow; the two blackish frontal lines of the head are broader; the metathorax almost entirely yellowish; the wings subhyaline, not yellowish, the broad fus- cous costal streak on the fore-wings very distinct, and extends down on the apical margins of both wings; the legs not so thickly spinose, the apical half of the posterior tibiae pale fuscous; and the bands on the abdomen more or less distinct. Length 4 — 5 lines; expanse of wings 8^—10 lines. Collection. — Ent. Soc. Philad.,and Dr. J. Gundlach. Two $ , three % specimens. Pompilus nubeculatus, n. sp. Fusco-ferruginous ; antennae, except tips, legs, and tip of abdomen, fulvous ; wings yellowish-hyaline, with the apex and a cloud between the middle and apex, fuscous ; legs scarcely spinose, the posterior tibise serrate. Female. — Head ferruginous, the vertex and occiput fusco-ferrugi- 124 [January nous, clothed with long pale pubescence, as well as the cheeks ; clypeus large, broad, truncate in front, clothed with appressed golden-yellow pubescence; mandibles blackish at tips; antennae fulvous, involute, the five apical joints black. Thorax dull fusco-ferruginous, faintly tinged with obscure purple, with a thin, long, pale pubescence, more dense on the pleura and metathorax ; prothorax dull ferruginous, and, as well as the mesothorax, clothed with dense, short yellowish pubescence; meta- thorax short, gently rounded behind, and covered, especially on each side behind, with dense hoary pile; tegulae fulvous. Wings large, pale yellowish-hyaline, a slight cloud on the middle, the extreme apex, and a moderate sized cloud between the middle and apex, fuscous; nervures fuscous ; posterior wings paler, with the apex faintly dusky. Legs fulvo-ferruginous, the coxae darker, with a slight hoary pile; the inter- mediate tibiae with a double row of very short spines ; the posterior pair serrate ; tips of the tarsi dusky. Abdomen rather short, ovate, convex, smooth and shining, fusco-ferruginous, with an obscure purple reflection, the tip and beneath clothed with long pale pubescence, the apical segment above with dense appressed bright fulvous pubescence. Length 7 2 lines; expanse of wings 14] lines. Collection. — Dr. J. Grundlach. One specimen. Belongs to the subgenus Priocncmis. Sec. 2. — Wings hyaline or subhi/aline. * Body blue. Pompilus bellus, n. sp. Blue, shining; antennae black; wings hyaline; wings neither spinose or serrated. Female. — Entirely bright blue or violet-blue, slightly tinged with greenish on the thorax ; clothed with a slight pale pubescence ; face, clypeus and cheeks, clothed with pale sericeous pile ; antennae entirely black, involute. Thorax densely and minutely punctured, more distinct on the mesothorax ; pleura and metathorax with a beautiful violet re- flection in certain lights, the latter short, rather abruptly rounded be- hind, minutely sculptured at base, and rugose towards the tip, especially on each side ; tegulaa black. Wings ample, hyaline, faintly tinged with fuliginous towards the apex; nervures black. Legs deep blue, more or less tinged with violet; tibiae and tarsi without spines or teeth. Abdomen rather short, ovate, convex, subpetiolated, polished, entirely bright blue. Length 4 — 4J lines; expanse of wings 7 2 — 8} lines. Male. — 'Resembles the female, but more slender and pubescent, and not so bright in color ; the antennas porrect, the legs more or less tinged with piceous, the wings clearer and iridescent, the abdomen slenderer 1865.] 125 at base, obscure bluish, and the apical segment above with a large whitish spot. Length 3 — 3V lines; expanse of wings 6 — 62 lines. Collection. — Ent. Soc. Philad. Two 9 , three % specimens. Prof. Poey informs me that this species makes its nest of earth, of a subtrefoil shape, under stones, and fills them flies. Belongs to the sub- genus Agenia Schiodte. ** Body fusco-ferruginous. Porapilus uniformis. n. sp. Fusco-ferruginous, antennae darker at tips ; metatkorax abrupt and depressed behind; wings subhyaline; legs spinose. Female. — Uniform pale fusco-ferruginous, covered with a very fine short, hoary-sericeous pile ; face long and rather narrow ; clypeus rather large, with its anterior margin obtusely emarginate in the middle; la- brum large and distinct ; mandibles large, acutely bifid and blackish at tips; antennas long, subporrect, dull ferruginous, blackish towards the tips. Thorax : prothorax with a small excavation on each posterior corner, and the posterior lateral margins strongly sinuate ; incisures of the pleura and metathorax black ; scutellum prominent on the middle, depressed on each side ; metathorax abrupt and depressed or somewhat excavated behind, with a slight central groove on the disk above, the basal incisure black; tegulae ferruginous. Wings subhyaline, with a slight metallic gloss, the extreme tips dusky ; nervures fuscous. Legs long, dull ferruginous; the tarsi spinose, the anterior pair ciliated be- neath with a few long spines; the intermediate and posterior tibiae with a few short, scattered spines. Abdomen subsessile, convex, shin- ing, the extreme base black, some of the remaining segments with an indistinct dark stain; apex slightly pubescent. Length 7 lines; ex- panse of wings 13 lines. Male. — Rather paler in color than the female, with the antennas shorter and thicker. Length 4g — 6 lines; expanse of wings 8J — 10 lines. Collection. — Ent. Soc. Philad. One $ , three % specimens. Easily recognized by the uniform dull ferruginous color and the subhyaline wings. *** Body ferruginous and black. Pompilus macer, n. sp. Black; basal half of abdomen ferruginous; wings subhyaline; legs without spines or teeth. Male. — Slender, black, opaque, slightly pruinose; antennae fuscous; thorax very minutely and closely punctured; metathorax gradually rounded behind, clothed with a fine hoary pile; tegulae dull testaceous. 126 [January Wings subhyaliue, tinged with pale fuscous, especially towards the tips, beautifully iridescent; nervures fuscous; second and third submar- ginal cells of equal size, subquadrate. Legs long and slender, piceous- black, clothed at base with a fine hoary pile ; tibiae and tarsi without spines or teeth. Abdomen elongate, slender, shining, the basal half, except extreme base, ferruginous; remainder black. Length 2f lines; expanse of wings 4 5 lines. Collection. — Dr. J. Guudlach. One specimen. Belongs to the subgenus Agenia. Sec. 3. — Wings hyaline, banded with fuscous. Pompilus pulchellus, n. sp. Ferruginous; head, antennae and disk of metathorax black; wings hyaline, with two broad fusco-violaceous bands ; legs slightly spinose, the posterior tibiae serrate. Female. — Head black ; the face, cheeks and clypeus covered with a dense whitish pile; face broad and flat; clypeus, mandibles and palpi, ferruginous; antennae nearly as long as the body, subporrect, slender, fuscous, ferruginous at base. Thorax ferruginous, covered with a very fine whitish-sericeous pile, dense and glittering on the metathorax ; postscutellum and disk of metathorax blackish, the latter gradually rounded behind and somewhat silvery on the sides. Wings hyaline, witht wo broad fuscous bands on the anterior pair which have a beautiful purple reflection, the one nearest the tip the broadest; posterior wings hyaline, the tips faintly dusky; nervures fuscous. Legs moderate, entirely ferruginous ; the intermediate tibiae with a few small spines, the posterior pair serrate. Abdomen ovate, convex, entirely ferrugi- nous, smooth and shining; sides of the segments covered with a very fine silvery-white sericeous pubescence ; the apical segments, as well as the venter, clothed with long pale pubescence. Length 3 2 lines; ex- pause of wings 6i lines. Collection. — Ent. Soc. Philad. One specimen. A beautiful little species, easily recognized by its handsomely ornated wings. It belongs to the subgenus Priocnemis. D a O Pompilus elegans, n. sp. Ferruginous ; head, antennae, legs and broad band near base of abdomen, blackish ; metathorax, legs and base of apex of abdomen, densely covered with cinereous pile ; wings whitish-hyaline, with a very large fuliginous spot near the tip, as well as a small spot at base and middle. Female. — Head flat, wider than the thorax, black, with an obscure purplish-brown shade; face broad and short; antennae short, piceous- black. slightly involute. Thorax long and rather narrow, ferruginous; 1865.] 127 prothorax large, rounded in front, with a black stain on the anterior margin ; mesothorax smaller than the prothorax ; pleura and metatho- rax covered with a dense fine cinereous pile, the latter abrupt on the sides and behind ; tegulae pale ferruginous. Wings whitish-hyaline, the anterior pair with a large, broad fuliginous spot or band beyond the middle, also a small baud on the transverso-medial nervure, and the extreme base, of the same color ; posterior wings hyaline, slightly dusky at tips ; nervures blackish, the stigma distinct. Legs piceous- black, covered with a very dense cinereous pile ; the four posterior tibiae with a few short scattered spines, tbe tarsi slightly spinose ; the inner spur of the posterior tibiae ciliated near the base. Abdomen elongate, sessile, convex, pointed at tip ; basal segment, except the dor- sal middle, a small spot on each side at the base of the second segment, extreme sides of the third, the apical margin of the fourth, and the whole of the remaining segments, as well as the venter, covered with a dense, short, appressed. cinereous pile, somewhat sericeous; disk of the first, the second, and the middle of the fourth segments, dark fuscous; the third and the basal margin of the fourth segments, ferruginous. Length 5 lines; expanse of wings 8 lines. Collection. — Dr. J. Gundlach. One specimen. Sec. -i. — Wings more or lets fuscous. * Body ferruginous and black. Pompilus compressiventris, n. sp. Long and narrow, ferruginous; antennae, sides of mesothorax, the whole of the thorax beneath, and the legs, black: wings fuscous; abdomen elongate, compressed beneath and at tip. Female. — -Head a little broader than the thorax, ferruginous, with most of the occiput and cheeks, a stain on the front, and the mandibles except tips, black; clypeus and labrum large, shining, the anterior margin of the former slightly and obtusely emarginate; palpi pale ferru- ginous; antennae longer than the head and thorax, slightly involute, blackish-fuscous. Thorax long and narrow, ferruginous above, black- ish-fuscous on the sides and beneath ; sides of the mesothorax broadly dark fuscous; metathorax long and compressed, ferruginous above, with a slight longitudinal channel down the middle, the extreme apex ab- rupt; tegulae dull ferruginous. Wings uniformly fuscous, with a strong brassy reflection ; nervures fuscous ; third submarginal cell nearly one- half longer than the second, truncate at tip and suddenly narrowed to- wards the marginal. Legs entirely blackish-fuscous, long and stout, the coxae large and robust; tibiae and tarsi very slightly spinose, the 128 [January tibial spurs long and acute, especially the innermost one. Abdomen sessile, smooth and somewhat shining, convex above, compressed be- neath, especially so at tip, which is somewhat edged; entirely ferrugi- nous, with a slight pale sericeous reflection. Length 7 lines ; expanse of wings 11 lines. Collection. — Dr. J. Gundlach. One specimen. Easily recognized by the elongate, narrow form, and the compressed venter and apex of abdomen. Pompilus coruscus, Smith. Pompilus coruscus, Smith, Brit. Mus. Cat. Hym. iii, p. 156. Collection. — Ent. Soc. Philad. Three specimens. One specimen (6£ lines long) agrees with Mr. Smith's description, and has the third submarginal cell petiolated. The other two speci- mens (5 — 5j lines) varies by the prothorax being mostly bright ferru- ginous, the third submarginal cell triangular or nearly so, and the two apical segments of the abdomen entirely fuscous. Should this variety prove to be a distinct species, it may be named insignis. Pompilus juxtus, n. sp. Black ; three basal segments of abdomen ferruginous ; wings fusco-hyaline ; legs spinose. Female. — Black, with an obscure fusco-sericeous reflection; lower part of face and the clypeus with a slight cinereous pile; antennae black, involute. Thorax slightly narrowed about the middle, dull black ; me- tathorax rounded behind. Wings fusco-hyaline, darker at tips, with a faint opaline reflection; third submarginal cell triangular. Legs black; the four posterior tibite and tarsi spinose. Abdomen convex, pointed at tip, the three basal segments ferruginous, except the extreme base of the first and the apical margin of the third, which, as well as the apical segments, are black. Length 4J lines; expanse of wings 7§ lines. Collection. — Ent. Soc. Philad. One specimen. Closely resembles P. coruscus Smith, and may be a variety of it. Pompilus terminatus, n. sp. Black; three basal segments of abdomen ferruginous; wings fuscous; legs not spinose, the posterior tibise serrate. Female. — Deep black, opaque; mandibles and antennae piceous, the latter long and slightly involute. Thorax narrow; metathorax rounded behind. Wings fuscous, slightly iridescent, the third submarginal cell large, subquadrate. Legs piceous, the posterior tibiae serrate. Abdo- 1865.] 129 men ovate, convex, bright ferruginous, the three apical segments black- ish-fuscous. Length 31 lines; expanse of wings 5 lines. Collection. — Ent. Soc. Philad. One specimen. Belongs to the subgenus Priocnemis. Pompilus subargenteus, n. sp. Black ; covered with a silvery-sericeous pile ; posterior margin of prothorax whitish; wings fuscous, third submarginal cell petiolated ; abdomen with a broad ferruginous band near the base; legs spinose. Male. — Deep black, opaque, covered with a fine silvery-sericeous pile, more distinct iu certain lights, especially on the face and posterior margin of the metathorax; antennae porrect, thickened; posterior mar- gin of the prothorax narrowly obscure whitish; metathorax rounded behind ; tegulse piceous. Wings fuscous, darker at tips ; nervures blackish ; third submarginal cell subpetiolated or triangular. Legs black, with a fusco-sericeous reflection; the coxae silvery-sericeous; the four posterior tibiae and tarsi spinose, the inner tibial spurs very long. Abdomen elongate, narrow, sessile, subconvex ; apical margin of the first, the second entirely and the basal half of the third segment bright ferruginous; apical segment silvery. Length 4J lines; expanse of wings 7 lines. Collection. — Dr. J. Gundlach. One specimen. Pompilus violaceipes. n. sp. Black; thorax and abdomen above ferruginous, the latter strongly tinged with beautiful violet: legs deep violet, very slightly spinose; wings fuscous, the an- terior pair with a strong brassy gloss, the tip violet; posterior pair subhyaline. Female. — Head rather large, opaque black, the clypeus broad and large, faintly tinged with purple; antennae black, involute. Thorax black ; disk of prothorax ferruginous, the sides black tinged with violet ; mesothorax with its middle obscure ferruginous, black on each side ; scutellums dull ferruginous; pleura entirely opaque black; metathorax subelongate, gradually rounded behind, covered with a beautiful silvery- sericeous pile, the dorsal middle broadly ferruginous, the sides opaque black, with a few ill-defined transverse striae; tegulae black. Wings long, uniformly fuscous, with a very strong brassy gloss, the tips vio- laceous ; neiwures black ; third submarginal cell half again as large as the second; posterior pair subhyaline, iridescent, clear at base. Legs long, black, with a beautiful deep violet reflection, very slightly spinose; inner spur of the posterior tibiae ciliated above near the base. Abdo- men subpetiolated, convex, subovate, ferruginous above, with a strong and beautiful violet or purple reflection, less obvious at base, deeper 130 [January aud stronger towards the tip; venter black-violaceous. Length 5g lines ; expanse of wings 11 lines. Collection. — Eut. Soc. Philad. One specimen. This elegant species belongs to the subgenus Agenia. Sec. 5. — Wings blackish-violaceous. Pompilus purpuripennis, n. sp. Deep blue; wings deep violaceous-purple; metathorax abrupt behind, deeply grooved down the middle, roughly and transversely striated ; legs slightly spi- nose. Female. — Black, with a strong, beautiful deep blue reflection, and in certain lights shaded with deep purple; antennae short and black, slightly involute ; prothorax larger than the mesothorax, rounded in front; metathorax rough, abruptly truncate and excavated behind, with a deep central longitudinal channel, wider behind, and on each side of it the surface is deeply, roughly and transversely striated, on the verge of the lateral truncation there is a longitudinal fold over which the transverse striae run. Wings ample, dark fuscous, with a very strong violaceous-purple reflection; nervures thick and black, the third submarginal cell rather smaller than the second, both cells receiving the recurrent nervures about the middle. Legs bluish-purple ; the four posterior tibiae with a few short scattered spines, the tibiae more thickly spinose. Abdomen subsessile, narrower than the thorax, pointed at tip, convex above, black, with a strong blue-purple reflection, the venter slightly greenish. Length 8 lines; expanse of wings 15 lines. Collection — Ent. Soc. Philad. One specimen. This species or even P. fulgidus, described below, may be the P. amethyst inns Fab., but it is impossible to say that they are identical, unless by comparison with typical specimens. Pompilus anceps, n. sp. Obscure greenish-blue; face silvery; wings violaceous; metathorax smooth and rounded behind; legs spinose, Male. — Black, with a greenish-blue sericeous shade; the face silvery- sericeous in certain lights; antennae black, pale sericeous; metathorax smooth, rounded and tinged behind with obscure purplish. Wings ample, dark fuscous, with a strong violaceous reflection; nervures black; third submarginal cell sub triangular, very much narrowed to- wards the marginal. Legs black, strongly shaded with bluish-purple, the four posterior tibiae and tarsi with a few scattered spines. Abdo- men nearly sessile, subconvex, black, with a strong greenish-blue seri- ceous reflection; apex pubescent. Length 6 — 65 lines; expanse of wings 11 — 12 lines. 1865.] 131 Collection. — Ent. Soc. Philad. Two specimens. May possibly be the male of P. purpuripennts, but the color is en- tirely different, being more of a greenish hue, the third submarginal cell of the anterior wings is larger and much more narrowed towards the marginal cell, and the legs are rather more strongly spinose. The metathorax is smooth and rounded behind. Pompilus fulgidus. n. sp. Deep blue, the abdomen brilliant blue and purple ; antennse black ; wings fuscous, the anterior pair with a purple reflection : legs slightly spinose. Female. — Deep violet-blue ; antennae black, involute; the pro- and mesothorax and pleura with a faint tinge of green ; metathorax smooth and rounded behind. Wings fuscous, the anterior pair with a rather strongly purple reflection; posterior pair paler; third submarginal cell subtriangular. Legs black, tinged with violet-blue ; the four posterior tibiae and tarsi slightly spinose. Abdomen subsessile, convex, polished, with a brilliant blue and violet reflection ; apex pubescent. Length 5$ lines ; expanse of wings 9 lines. Collection. — Ent. Soc. Philad. One specimen. Easily recognized by the brilliant blue and violet polished abdomen. Pompilus orbitalis, n. sp. Velvety-black; orbits and a central line down the front, golden ; prothorax with a transverse ferruginous line : wings deep violet-blue; abdomen with the four dorsal segments mostly dull ferruginous: legs spinose. Female. — Deep velvety-black ; orbits, sides of clypeus, and a line down the middle of the front, bright golden ; antennae black, involute. Thorax : prothorax with a transverse, bright ferruginous line near the posterior margin, slightly interrupted on the middle, and gradually narrowed on each side ; metathorax uneven, rather abrupt behind, with an obtuse prominence or tubercle on each side. Wings dark fuscous, with a very strong deep violet-blue reflection ; nervures black ; third submarginal cell somewhat semicircular, smaller than the second. Legs velvety-black, robust, beautifully sei-iceous; all the tibiae and tarsi strongly spinose. Abdomen sessile, elongate, convex, shining black ; the first four dorsal segments purplish-ferruginous, stained more or less on the middle and apex with fuscous, so that the ferruginous color forms a large ill-defined spot on each side of the segments ; apical seg- ments pubescent. Length 8 lines ; expanse of wings 12 lines. Collection. — Dr. J. Gundlach. One specimen. 132 [January Genus PLANICEPS, Latr. Planiceps collaris, n. sp. Black : anterior and posterior margin of prothorax, and the abdomen, ferru- ginous ; wings fusco-h valine, the anterior pair with a strong golden reflection_ Female. — Brownish-black, opaque, sericeous; face broad and flat, the lower part slightly silvery -sericeous ; antennae short, black, slightly involute. Thorax somewhat flattened above ; prothorax very large, with a transverse, subquadrate mark in front and the posterior margin entirely, bright ferruginous; metathorax rather large, abrupt behind, covered with a dense cinereo-sericeous pile. Wings fusco-hyaline, with a strong golden reflection, the posterior pair subhyaline, darker at tips; two submarginal cells, the second about one-half the length of the first, receiving the first recurrent nervure between the middle and base, the second recurrent nervure is received beyond the tip of the second submarginal cell. Legs brownish-sericeous, stout, the anterior femora very robust; tibiae and tarsi spinose ; tibial spurs very long. Abdomen subsessile, elongate, subcompressed, accuminate at the tip. entirely ferruginous. Length 5 J lines ; expanse of wings 7 lines. Collection. — Ent. Soc. Philad. One specimen. Genus CEROPALES, Latr. Ceropales cubensis, n. sp. Black; face, orbits, posterior margin and a spot on each side of prothorax, spot on scutellum, postscutellum, and spots and bands on abdomen, yellowish; wings hyaline; legs ferruginous. Female. — Black ; the face, clypeus, cheeks, pleura, metathorax and legs, covered with a very fine silvery-sericeous pile ; orbits, very broad in front, not reaching the vertex, face beneath the antennas, a spot be- hind them, the clypeus and labrum, pale yellowish, more or less silvery; antennas longer than the head and thorax, porrect, black, covered with a yellowish-sericeous pile; the two basal joints pale yellowish beneath, sometimes obscurely so. Thorax : prothorax with a spot on each side and its entire posterior margin, pale yellowish ; mesothorax depressed behind, with a patch of close deep punctures on each side of the disk ; pleura silvery ; scutellum with a central pale yellowish spot, and the postscutellum with a transverse spot of the same color; metathorax short, abrupt behind, silvery on the sides and behind ; tegulae testaceous. Wings hyaline, slightly dusky at tips; nervures fuscous. Legs long, especially the posterior pair; ferruginous; the four anterior coxas black, more or less yellowish beneath, silvery; posterior tarsi very long, fus- cous. Abdomen stout, black ; basal segment with a sublimate pale yellowish apical spot on each side; remaining segments each with an OQ 1865.] 13 apical pale yellowish fascia, very broad on each extreme side, deeply emarginate anteriorly on each side of the middle, aud more or less dilated on the disk, that on the second segment interrupted on the disk. the lateral emarginations sometimes so deep as to interrupt the fascia into three spots. Length 33 — 1 lines; expanse of wings (3J — 8 lines. Collection. — Dr. J. (lundlach. Two specimens. Ceropales clypeatus, n. sp. Black: most of clypeus, palpi, posterior margin of prothorax, and the tegulse. yellowish-white: legs ferruginous; wings whitish-hyaline, with a pale fuscous cloud near the apex. Female. — Black, opaque; face silvery in certain lights: clypeus yel- lowish-white, with a square black spot on the basal middle ; palpi whitish ; antennae blackish, the basal joint beneath dull ferruginous. Thorax : posterior margin of the prothorax entirely yellowish-white ; metathorax black, rather shining, rounded behind ; tegulae yellowish- white. Wings whitish-hyaline, slightly iridescent, with a small pale fuscous cloud covering the marginal and the second and third submar- giual cells ; nervures black. Legs long, especially the posterior pair, and including their coxae, ferruginous, the posterior tarsi fuscous, tibial spurs white Abdomen oblong-ovate, piceous-black, immaculate, the basal segment tinged with obscure ferruginous. Length 3 lines ; ex- panse of wings 5 lines. Collection. — Dr. J. Gundlach. One specimen. Genus PEPSIS. Latr. Sec. 1. — Wings mostly ferruginous. Pepsis marginata, Beauv. Pepsis marginata, Beauv. Ins. Afriq. et Amer. p. 94, pi. 2. fig. 2 J , 3 'J, . St. Farg. et Serv. Ency. Meth. x, p. 64. St. Farg. Hym. iii, p. 470. Guer. LaSagra's Hist. Cuba, Ins. p. 761. Collection. — Ent. Soc. Philad. Five $ , three £ specimens. The cocoon of this fine species is elongate-ovate, 2| inches long by 1 8 inch wide about the middle, gradually tapering at one end, constructed of a rather thin, hard, woody substance, of a yellowish -brown color, more or less mottled or stained with blackish. The imago makes its exit at the smallest end by means of a circular incision made about one- fourth from the tip, which forms a cap or lid, somewhat similar to that of the cocoons of certain minute Ichneumonidae. Sec. 2. — Wings blackish, margined at tip with hyaline. Pepsis ornata, St. Farg. Pepsis ornata, St. Farg. Hym. iii, p. 486. Guer. LaSagra's Hist. Cuba, Ins. p. 761. Collection. — Ent. Soc. Philad. Four $, three % specimens. 134 [January Sec. 3. — Wings entirely blackish-violaceous. Pepsis ruficomis, Fabr. Sphex ruficomis, Fabr. Ent. Syst. ii, p. 219. Pepsis ruficomis, Fabr. Syst. Piez. p. 215. Beauv. Ins. Afriq. et Ame'r. p. 94. pi. 2, fig. 1. St. Farg. et Serv. Ency. Meth. x, p. 64. Dahlb. Hym. Europ. i, p. 119. St. Farg. Hym. iii, p. 480. Collection. — Ent. Soc. Philad. Six 9 , seven % specimens. Sec. 4. — Wings blackish, with a large ferruginous mark. Pepsis ignicornis, n. sp. Black; abdomen with a purple-blue reflection; antennae except extreme base, fulvo-ferruginous ; wings blackish-violaceous, with a large, irregular ferrugi- nous mark about the costal middle. Male. — Deep black, slightly pubescent ; clypeus, labrum and mandi- bles, shining- black; antennae two-thirds the length of the body, thick- ened, bright ferruginous, the two basal joints black. Thorax velvety- black, with a very faint bluish reflection in certain lights; metathorax narrow, elongate, transversely striated, especially towards the tip. the dorsal middle with a shallow longitudinal furrow. Wings large, uni- formly dark fuscous, with a very strong violet reflection ; near the costal middle a large, irregular, bright ferruginous stain ; nervures black. Legs black, with a beautiful hluish reflection. Abdomen black, with a strong, beautiful purplish-blue reflection. Length 9 J lines; expanse id' wings 20 lines. Collection. — Ent. Soc. Philad. ( )ne specimen. Closely allied to P. ruficomis. but is readily distinguished from that species by the bright ferruginous stain on the anterior wings. It may. however, be ouly a variety. Fam. SPHEGID.E. Genus AMMOPHILA, Kirby. Ammophila apicalis, Guer. Ammophila apicalis, Guer. Icon. Reg. Anim. iii, p. 435, pi. 70, fig. 3; LaSagra's Hist. Cuba, Ins. p. 763. Collection. — Ent. Soc. Philad. Six specimens. Genus PELOP(EUS, Latr. Pelopoeus cementarius, Drury. Sphex cementaria, Drury, Ins. i, p. 105, pi. 44, fig. 6 — 8. Sphex flavipunctata, Christ. Hymn. p. 301, pi. 30, fig. 1. Sphex fiavomaeulata, DeGeer, Mem. Ins. iii, p. 588, pi. 30, fig. 4. Sphex lunata, Fabr. Ent. Syst. ii, p. 203. Pelopceus lunatus, Fabr. Syst. Piez. p. 203. Beauv. Ins. Afriq. et Amer. p. 50, pi. 7, fig. 4. Gue'r. Icon. Reg. Anim. p. 436, pi. 70, fig. 5 ; LaSagra's Hist. Cuba, Ins. p. 763. Dahlb. Hym. Europ. i, p. 23. St. Farg. et Serv. Encyl. Meth. x, p. 35. St. Farg. Hym. iii, p. 312. 1865.] 135 Pelopoeus cementarius, Smith, Brit. Mus. Cat. Hym. iv, p. 234. Collection. — Ent. Soc. Philad. Twelve specimens. Prof. Poey informs me that this species " makes its nest of moist earth, about twenty cells approximated and covered by a general layer. The 9 deposits an egg in each cell, which she fills afterwards with spiders, after having pricked them with her sting. The effect of the wound is to paralyze the legs of the spider, which preserves, for about thirty days, its flexibility and its colors. The nest is made under roofs." Pelopoeus annulatus. Klug. MSS. Black: face golden; base of antennre, prothorax, tegulse, spot beneath ante- rior wings, scutellums, spot behind posterior wings, large lunate mark at tip of metathorax, legs in part, the petiole beneath and the first segment of abdomen, yellow ; rest of abdomen brownish, the apical margins of the segments testace- ous ; wings fusco-hyaline. Female — Head black, clothed with pale yellowish pubescence, more dense on the cheeks; the face and clypeus golden ; antenna? black, the basal joint yellow, the two following joints more or less tinged with fer- ruginous. Thorax black, opaque, slightly pubescent ; the prothorax, tegulae, a large spot just beneath the anterior wings, the scutellum and postscutellum, a large, sublunular mark on the tip of the metathorax, and an elongate spot on each side at extreme base behind the posterior wings, yellowish; metathorax covered with dense, minute, transverse striae, the dorsal middle prominent. Wings uniformly tinged with yel- lowish-fuscous, the nervures pale ferruginous. Legs black ; the four anterior femora, except extreme base, their tibiae and tarsi entirely, the posterior trochanters, their femora at base, the basal half of their tibiae and tarsi, yellowish ; apical half of their tarsi fuscous. Abdomen fus- cous, the petiole black above, yellowish on the sides and beneath, the first segment entirely yellowish, except a pale fuscous stain at the base, apical margins of the remaining segments narrowly pale testaceous. Length 9> lines; expanse of wings 13 lines. Male. — Colored like the female, except that the abdomen beyond the first segment, is fusco-ferruginous, with the apical margins of the seg- ments faintly paler. Length 9 lines ; expanse of wings 12 lines. Collection. — Ent. Soc. Philad. One 9 > tw° £ specimens. Very closely allied to P. cementarius, but is readily distinguished by the different coloration of the wings, legs and abdomen. The name adopted above for this species was communicated to me by Prof. Poey. 136 [January Pelopoeus argentifrons. n. sp. Black ; face silvery ; two spots on prothorax above, a spot beneath anterior wings, another behind posterior wings, scutellura, a small line on postscutellum, two spots at tip of metathorax, and posterior margin of first segment of abdo- men, yellow ; wings hyaline, dusky at tips. Female. — Deep opaque black, the head and thorax clothed with a rather long whitish pubescence, more dense beneath; face and clypeus bright silvery, the latter eniargiuate at tip, the anterior margin de- pressed and shining; antennae entirely black, subsericeous. Thorax closely and finely punctured, and when examined under a powerful lens. the surface is covered with fine irregular longitudinal striae, inter- spersed with deep punctures, and the interstices densely and minutely punctured ; two small transverse lines on the prothorax above, an elon- gate snot on each side of the pleura anteriorly connected with a small spot between it and the tegulaa, a large transverse spot on the scutel- lum, a narrow, nearly obsolete, transverse line on the postscutellum, a round spot on each side at the. base of the metathorax. and two others at the extreme tip, all yellow ; scutellum smooth and shining on the disk; metathorax covered with dense, minute, transverse striae, and with a fine, dense, whitish, sericeous pile, glittering in certain lights, the dorsal middle is prominent, with a broad, longitudinal, central channel; tegulae black, highly polished. Wings hyaline, the tip, as well as the costal half of the marginal cell, fuliginous; nervures black. Legs entirely black, covered with a very fine glittering pile. Abdomen shining black, the first segment with the apical margins obscure yel- lowish, dilated on the extreme sides, narrow and slightly interrupted on the dorsal middle. Length 10 lines; expanse of wings 15 lines. Collection. — Ent. Soc. Philad. One specimen. This may be the P. axxlmllis of Dahlbom, but his description is too meagre to decide. Genus PODIUM, Fabr. Podium fulvipes, n. sp. Black, opaque; mandibles, tegulse and legs, fulvous; abdomen polished: wings hyaline, their apical fourth fuliginous. Female. — Black, opaque or subopaque, thinly clothed with rather long, fine, pale pubescence; face slightly silvery; mandibles long, slen- der, acute, fulvous or rufo-fulvous, shining, the extreme tips blackish; palpi pale fulvous; antennae rather slender, black or piceous-black. Thorax black, with a faint tinge of blue, and finely punctured; scutel- lum flat, shining; metathorax elongate, very densely punctured, with a deep, central, longitudinal furrow, which is covered, as well as the narrow basal and apical margins, with bright glittering pile ; tegulaj 1865.] 137 shining, fulvous. Wings hyaline, the apical fourth fuliginous, the nervures yellowish. Legs entirely fulvous, except their coxae and tro- chanters, which are black ; the tarsal tips are slightly dusky. Abdo- men black, smooth and polished ; the petiole about one-half as long as the rest of the abdomen, and clothed with long pale pubescence; first segment with a shallow excavation in front. Length 82 lines; expanse of wings 12 lines. Collection. — Ent. Soc. Philad. Two specimens. Genus SPHEX, Fabr. Sphex Lanieri, Guer. Sphex Lanieri, Guer. Icon. Reg. Anim. iii, p. 433; LaSagra's Hist. Cuba, Ins. p. 760. Sphex aurulenta, Guer. Icon. Reg. Anim. pi. 70, fig. 2. Collection. — Ent. Soc. Philad. Six specimens. Sphex aurifluus, Perty. Sphex aurifluus, Perty, Del. An. Art. p. 142, pi. 27, fig. 19. Sphex ornata, St. Farg. Hym. iii, p. 344. Collection. — Ent. Soc. Philad. Fifteen specimens. Genus PRIONONYX, Dahlb. Priononyx Thomae, Fabr. Sphex Thomce, Fabr. Ent. Syst. ii, p. 199. Pepsis Thomce, Fabr. Syst. Piez. p. 209. Priononyx Thomce, Dahlb. Hym. Europ. i, p. 28. Collection. — Ent. Soc. Philad. Eight specimens. Fam. LARRID^. Genus LARRADA, Smith. Larrada fulviventris, Guer. Lyrops fulviventris, Guer. Icon. Reg. Anim. p. 440; LaSagra's Hist. Cuba, Ins. p. 766, pi. 18, fig. 9. Larrada fulviventris, Smith, Brit. Mus. Cat. Hym. iv, p. 286. Collection. — Ent. Soc. Philad. Six specimens. Larrada ignipennis, Smith. Larrada ignipennis, Smith, Brit. Mus. Cat. Hym. iv, p. 288. Collection. — Ent. Soc. Philad. Two specimens. The two specimens before me seem to answer to Mr. Smith's descrip- tion of this species, except that instead of the basal three-fourths of the wings being " bright ferruginous," they are orange-yellow. ? Larrada fuliginosa, Dahlb. Larra fuliginosa, Dahlb. Hym. Europ. i, pp. 138 and 472. Larrada fuliginosa, Smith, Brit. Mus. Cat. Hym. iv, p. 288. Opaque black ; head clothed with a short, cinereous pubescence, very dense and somewhat silvery-sericeous on the face and cheeks; clypeus 138 [January shining, the apical margin slightly emarginate in the middle; palpi brownish; antennae black, basal joint loug. Thorax opaque black, very thinly clothed with short, cinereous pubescence, more dense on the metathorax, punctures not distinct; disk of mesothorax depressed; scutellum shining ; metathorax opaque black, with a deep longitudinal central channel, a deep transverse strue, much finer on the sides, the truncation depressed, irregularly striated ; tegulse polished. Wings fusco-hyaline, sometimes dark fuscous; in certain lights there is a beau- tiful opaline reflection, a more or less deep purple or violaceous gloss. Legs black, with a fine, sparse, cinereous pile ; the tibiae and tarsi spi- nose. Abdomen black, somewhat silky, the apical margins of the three basal segments silvery-sericeous, obsolete when viewed from the front, and more or less brilliant when viewed from behind ; apical segment brownish, depressed, and covered above with minute, subdepressed spines. Length 6i — 8 lines; expanse of wings 11 <} — 14 lines. Collection. — Ent. Soc. Philad. Three specimens. Not being altogether certain of the identity of the specimen before me with Dahlbom's fulit/inosa, I add a description ; should they prove to be distinct, the species above may be called Larrada Dahlbomi. Larrada trifasciata. Smith. Larrada trifasciata, Smith, Brit. Mus. Cat. Hym. iv, p. 290. Collection. — Ent. Soc. Philad. Three specimens. Larrada vinulenta, n. sp. Black ; face, cheeks, collar, lateral margins of mesothorax, and apical mar- gins of abdominal segments, silvery-sericeous; wings subhyaline, apex darker. ( )paque black ; face, clypeus, base of mandibles and the cheeks, bright silvery; antennae black, the scape silvery in front. Thorax not dis- tinctly punctured, somewhat silky; mesothorax depressed on the mid- dle, more or less silvery in certain lights; the collar, lateral margins of mesothorax, and the pleura, silvery; scutellum shining; metathorax opaque black, indistinctly striated, slightly silvery on the verge of the lateral truncation, and densely and brilliantly so on the posterior trunca- tion ; tegulas and legs black, the latter more or less clothed with bright silvery pile. Wings subhyaline, the apical margins tinged with fuscous ; nervures fuscous. Abdomen short, ovate, black, silky, the apical mar- gins of the four or five basal segments, and the apical segment entirely, bright silvery-sericeous when viewed from behind, subobsolete when viewed from the front. Length 31 — ±1 lines; expanse of wings 6J — 7-> lines. Collection. — Ent. Soc. Philad. Four specimens. 1865.] 139 Closely resembles L. trifasciata, but is smaller and has more silvery bands on the abdomen. Genus TACHYTES. Panz. Tachytes cubensis, n. sp. Blackish; face, cheeks, collar, margins of mesothorax, pleura, postscutellum, sides of metathorax and apical margins of first three abdominal segments, bright golden; tegulse and legs fulvous; wings yellowish-hyaline. Female. — Head black; vertex clothed with cinereous pubescence, the face, clypeus and cheeks with dense golden pubescence ; palpi and mandibles fulvous, the latter with their apical half black, and their base golden ; eyes large, approximate on the vertex ; antennae black, the basal joint clothed with yellowish pubescence. Thorax opaque brown-black ; a line over the collar, broad lateral and posterior margins of the mesothorax, broader before the tegulae. and sides of the pleura of dense golden pubescence, the front of the mesothorax is also more or less golden; scutellum blackish, the extreme sides golden, as well as the whole of the postscutellum ; metathorax brown-black, opaque, clothed with a rather long whitish pubescence, and on each side a large longitudinal mark of dense, bright golden pubescence, just above the truncation a small central excavation, upper part of the truncation with a deep central impressed line ; tegulae fulvous. Wings ample, yel- lowish-hyaline, slightly dusky at extreme tips; nervures honey-yellow. Legs stout, fulvous, with a dense bright golden pile, more conspicuous on the tibire and tarsi, which are spinose ; coxae and trochanters brown- black, as well as the tarsal claws. Abdomen brown-black, with a fine changeable golden-sericeous pile ; the three basal segments with a broad golden apical band, those on the second and third segments strongly emarginate before on the disk ; basal segment clothed with whitish pubescence ; apical segment narrow, flattened, carinated on each side, obtuse at tip, golden at base and ferruginous at tip. Length 8} lines ; expanse of wings 13J lines. Male. — Resembles the female, but is much smaller, more densely pubescent, darker in color, the wings clearer, the abdomen is blacker, making the three bands very distinct and brilliant, and the apical seg- ment is bright silvery, truncate at tip and armed with a small obtuse tooth on each side of the tip. Length 5z lines; expanse of wings 10 lines. Collection. — Dr. J. Gundlach. Two specimens. This may prove to be the Tachytes 3-cincta of Lahlbom, from St. Thomas, but the meagre description given of that species makes it un- certain, and I therefore describe it under another name. It cannot be 140 [January the Liris 3-cincta of Fabricius, as he describes the pubescence as being entirely " cinereous," and does not mention the bright golden pubes- cence which is very dense on certain parts, and also the brilliant golden reflections of the abdomen. Tachytes insularis, n. sp. Black ; face, line over tegulse, pleura, sides of metathorax, legs, and apical margins of abdominal segments, silvery; wings hyaline; apex of abdomen 9 fuscous, % silvery. Female. — Dull black, the head and thorax rather densely clothed with cinereous pubescence; face, clypeus, base of mandibles and the cheeks, clothed with dense, bright silvery pubescence ; antennae black, the scape silvery in front. Thorax very minutely and closely punc- tured; a line over the collar, another over the tegulae, most of the pleura, and each side of the metathorax behind, clothed with bright silvery pubescence ; metathorax clothed with long cinereous pubescence, the truncation deeply channelled down the middle ; tegulae dull fulvous. Wings very faintly tinged with fuscous ; nervures blackish. Legs black, clothed with bright silvery pile, especially the femora behind. Abdomen oblong-ovate, black, shining, slightly iridescent; the four basal segments each with an apical fascia of silvery-sericeous pubes- cence, interrupted on the disk ; apical segment depressed, densely clothed with fuscous pubescence. Length 6 lines ; expanse of wings 9 lines. Male. — Resembles the female, with the last dorsal segment of the abdomen densely clothed with bright silvery pubescence, and the wings pure hyaline. Length 4 — 41 lines; expanse of wings 6 — 7 lines. Collection. — Ent. Soc. Philad. One 9 > three £ specimens. Genus ASTATA, Latr. Astata insularis, n. sp. Black, shining ; abdomen rufous, black at tip ; wings fuseo-hyaline, with a violaceous reflection; metathorax covered with dense oblique strise. Female. — Black, shining; clothed with cinereous pubescence, longer, dense and glittering on the face, cheeks and pleura; head shining, finely punctured; antennae and mandibles black; palpi piceous. Tho- rax feebly punctured, polished; pleura closely punctured and densely clothed with cinereous pubescence ; scutellum sparsely punctured ; metathorax densely covered with oblique striae, with a longitudinal central carina; tegulae piceous, shining. Wings fusco-hyaline, darker at tips, with a rather strong violaceous reflection ; nervures black. Legs black, shining, pubescent; tibiae and tarsi thickly spinose exteriorly. Abdomen rufous, impunctured, smooth and polished, the three apical 1865.] Ul segments more or less piceous or black. Length 5 2 lines; expanse of wings 8$ lines. Collection. — Dr. J. Grundlach. Two specimens. Fam. BEMBECLM1. Genus BEMBEX, Fabr. Bembex argentifrons, n. sp. Black ; face bright silvery ; clypeus, labrum, mandibles, collar, tegulse, tu- bercles, two spots on scutellum, postscutellum, curved line on disk and spot on each side of metathorax, most of legs, and broad indented bands on abdomen, yellowish ; wings hyaline. Female. — Black, clothed with a short, fine hoary pile, most dense on the head and thorax; face bright silvery in certain lights; clypeus, labrum, mandibles, and scape of antennae beneath, yellowish. Thorax pruinose, the collar and pleura silvery in certain lights ; collar, two short lines on mesothorax, line over the tegulaa, margins of pectus, tubercles, tegulae, a large mark on the pleura beneath the fore-wings, incised behind, a large quadrate spot on each side of the scutellum, postscutellum, a large transverse lunular mark on the posterior part of the metathorax, and a rather large spot on each side behind densely clothed with hoary pubescence, all yellow. Wings pure hyaline, ner- vures fuscous. Legs yellow, slightly hoary ; the coxae, except a spot beneath, sometimes obsolete, trochanters, basal half or two-thirds of the temora, a line on the tibiae within, a short sinuate line on the anterior tibiae at tip exteriorly, and extreme tips of the tarsi, black; anterior tarsi broadly dilated, with a long fringe of stout blackish setae. Abdomen shining, slightly hoary at base, each segment with a very broad bright lemon-yellow apical band, more or less deeply and squarely emarginate before on each side of the middle, that on the basal segment deeply and squarely emarginate in the middle and sinuate on each side ; be- neath yellowish, the base black, and at the apex of each segment two black central spots, becoming larger and sometimes confluent towards the tip, last segment black at tip. Length 5$ — 6 lines ; expanse of wings 85 — 9 i lines. Male. — Resembles the female, except that the markings are all bright lemon-yellow, the antennae entirely black, the two short lines on meso- thorax obsolete, the mark beneath the fore-wings interrupted, the an- terior tarsi not dilated, and the bands of the abdomen broader, covering nearly the whole surface, those on the three basal segments stained with dark green, and the second ventral segment has a strong, compressed, curved tooth on the middle. Length 5j lines ; expanse of wings 9 lines. Collection. — Ent. Soc. Philad. Two 9 , one % , specimens. 142 [January Bembex armata, n. sp. Black; face golden ; clypeus, labrum, line over collar, tubercles, two short lines on mesothorax, line over tegulse, large spot on pleura, sides of scutellum, postscutellum, a curved line or two spots on metathorax, most of legs, and a band on each abdominal segment, all yellowish; wings hyaline; second ven- tral segment of £ with a long, acute, curved tooth. Female. — Black, clothed with a short, fine hoary pile; the face, cly- peus and cheeks bright silvery, the former somewhat tinged with golden towards the vertex ; clypeus produced, dull ferruginous; labrum and mandibles yellowish, the former dull ferruginous at base and the latter black at tips ; antennae black, the scape except its base behind, yellow. Thorax dull black, densely and finely punctured, clothed above with a very short golden pubescence ; a line over the collar extending on each side and covering the tubercles, two short lines on the mesothorax, a line over the tegulae, a large mark on the pleura, tegulas, sides of the scutellum, postscutellum, a transverse arcuated line on the metathorax, as well as a spot on each side behind, yellow ; the pleura and metatho- rax clothed with a fine bright silvery-sericeous pubescence, very dense on the posterior sides of the latter. Wings hyaline, nervures fuscous. Legs yellow ; base of the coxae, trochanters, basal two-thirds of the femora, and the tibiae within, black; tarsi tinged with ferruginous, the anterior pair dilated and fringed with long dusky setae. Abdomen black, shining, the apical margins of all the segments broadly pale greenish-yellow, the anterior margins undulate and indented on the middle, that on the apical segment divided by a central black line; base of first segment silvery-sericeous; beneath, the apical margins of the segments are narrowly yellowish, with a large lateral pale yellowish spot. Length 5-} lines; expanse of wings 9 lines. Male. — Rather stouter than the female ; the face bright golden ; the clypeus and labrum bright yellow ; the mandibles piceous, with an ex- terior basal streak of yellowish ; the antennae entirely black, except the tips of the scape beneath, which are dull-yellowish; two small linear spots on each side of the pleura instead of a large mark ; the line on the postscutellum interrupted in the middle, forming two oblique marks which are accuminate and pointed towards the disk, the yellow spots on each side behind are obsolete ; the wings faintly tinged with fuscous; the bands of the abdomen are bright yellow, the apical segment black with a yellow spot on each side at tip ; beneath, the second segment has a large, long, subcompressed, curved, acute, claw-like tooth, very conspicuous. Length 6 lines ; expanse of wings 10 lines. Collection. — Ent. Soc. Philad. Two ( % $ ) specimens. 18G5.] U3 Genus MONEDULA, Latr. Monedula signata, Linn. Vespa signata, Linn. Syst. Nat. i, p. 952. Apis vespiformis, DeGeer, Ins. iii, p. 570; pi. 28. fig. 3. Bembex signata, Fabr. Syst. Ent. p. 361 ; Syst. Piez. p. 223 ; Oliv. Ency. Meth. iv, p. 290. Monedula signata, Latr. Gen. Cr. et Ins. iv, p. 100 ; St. Farg. & Serv. Ency. Meth x, p. 49S; St. Farg. Hym. iii, p. 283; Dahlb. Hym. Europ. i, p. 185 ; Guer. LaSagra's Hist. Cuba, Ins. p. 764. Collection. — Ent. Soc. Philad. Eight ( % $ ) specimens. Monedula insularis, Dahlb. Monedula insularis, Dahlb. Hym. Europ. i, p. 186. 9 • Female. — Black, clothed with cinereous pubescence, more dense on the head and metathorax; the face, orbits, mandibles, and scape of an- tennae beneath, yellow ; clypeus and labrurn pale greenish-yellow ; fla- gellum of the antennae with a yellowish line beneath ; the collar, two short lines on the mesothorax, a line over the tegulae, pectus, except a black spot in front of the tubercles, continued to the collar in a narrow undulating line, tegulae, tubercles, a large subtriangular spot on each side of the pleura beneath the fore-wings, a'n elongate spot beneath the hind wings, lateral margins of the scutellum, a semicircular line on the metathorax interrupted on the truncation by around black spot, a huge spot on each side behind, and a minute spot on each side near the base, all yellow. Wings hyaline. Legs yellow, sometimes tinged with fer- ruginous ; the trochanters, the intermediate coxae, except a triangular yellow spot beneath, the posterior coxae, except an exterior yellow line, a line on the anterior femora behind, base of the posterior femora, and the tarsal claws, black. Abdomen black, shining, somewhat iridescent; first segment with a transverse pale greenish-yellow mark on each side about the middle, broad on each side, continued beneath, much nar- rowed towards the middle above, and nearly meeting on the disk; four following segments each with a transverse pale greenish-yellow fascia, broad on each side and suddenly narruwed by a deep square emargina- tion in front and on each side of the middle, and very slightly inter- rupted on the disk, the emargination on the fourth and fifth segments not so deep; sixth segment entirely black; beneath, the apical margins of second to fifth segments are very narrowly pale yellowish, with a large pale yellowish spot on each side. Length 7 i lines; expanse of wings 12 lines. Var. 9 . — Short lines on mesothorax obsolete, the lines over the teg- ulae narrow and interrupted, only a spot on each side of the scutellum, semicircular line on the metathorax obsolete except a narrow line on 144 [January each side at base, and the fasciae on the second and three following see:- ments of the abdomen obtusely emarginate in front. Male. — Resembles the female, with the short lines on mesothorax obsolete, the line over the tegulaa interrupted, the black spot on each side of the pectus much enlarged, the spot beneath the fore-wings divided by a black line, the semicircular line on the metathorax obso- lete, the posterior lateral spot sometimes very small, and the fasciae on the second and three following segments of the abdomen very ob- tusely emarginate; beneath, the second segment has a compressed, curved, acute tooth on the middle, and the sixth segment is rounded at apex, with a central tooth like that on the second segment, but not curved at the apex. Collection. — Ent. Soc. Philad. Twenty-six ( £ 9 ) specimens. The yellowish markings of the head and thorax, as well as the legs, are sometimes tinged with ferruginous. This is doubtless the insular is of Dahlbom, although his short diag- nosis would as well apply to other species as to this, and therefore, to prevent further confusion, I add a more detailed description of the species. It has some resemblance to M. signata, but is smaller, the clypeus is immaculate, the lines on the mesothorax are very short, the fasciae on the abdomen are altogether of a different shape; the apical segment of the male of siynata is emarginate at tip and has an acute tooth on each side, and the second and last ventral segments are without a central tooth. 7 Monedula dissecta, Dahlb. Monedula dissecta, Dahlb. Hym. Europ. i, p. 186. 9- Female. — Black, with a slight iridescence; head and thorax clothed with a fine, short, cinereous pile ; sides of the face silvery in certain lights; clypeus semicircular, yellowish, covered with a very fine, sil- very-sericeous pile, with its anterior margin and two spots on the ante- rior middle, dusky ; labrum dull yellowish, silvery-sericeous as well as the base of the mandibles, which are piceous; antennae black, the scape beneath yellow. Thorax subopaque, very minutely and closely punc- tured; the collar, two spots on the mesothorax in front, broad line on each side extending over the tegulae to the scutellum, tubercles, a large spot on each side of the scutellum, a transverse line on postscutellum, a narrow, semicircular line on the metathorax, interrupted on the disk behind, and the large posterior angles, all deep yellow; metathorax very broadly excavated behind, making the posterior angles large, com- 1-865.] 145 pressed and sharp; tegulae dull ferruginous. Wings fusco-hyaline, the uervures fuscous. Legs deep yellow, more or less silvery-sericeous; coxfe, trochanters, most of the femora, and a line on the posterior tibia? behind, black or piceous. Abdomen shining black, iridescent, the four basal segments with a deep yellow, sinuate fascia, interrupted on the disk, the interruption gradually wider towards the apex; on each side of the fifth segment an ovate deep yellow spot; apical segment entirely black ; beneath, the second and three following segments with a la rue triangular lateral yellowish spot, gradually smaller towards the tip. Length 7 lines; expanse of wings 11 lines. Male. — Like the female, with a yellow spot on each side of the pleura beneath the fore-wings, the fifth segment of the abdomen banded like the fourth, and the sixth segment with an ovate spot on each side like the fifth segment of the female, the first ventral segment has a well de- veloped, acute, central carina at the extreme base, and the last segment has a small acute tooth on each side. Length 6 — 7 lines ; expanse of wings 9] — 11 lines. Collection. — Ent. Soc. Philad. One 9, two % specimens. I have referred the specimens from which the above description was tak . St. Farg. & Serv. Eneyel. Meth. x, p. 496. Smith, Brit, Mus. Cat. Hym. iv, pi. viii. fig. 4. Hogardia rufescens, St. Farg. Hym. iii, p. 289, pi. 28. fig. 5: Guer. LaSagra*s Hist. Cuba, Ins. p. 765. Collection. — Ent. Soc. Philad. Two 9 .two % specimens. Genus NYSSON, Latr. Nysson armatus. n. sp. Black, clothed with a very fine, appressed, sericeous pubescence, very dense and silvery on the face and golden on the metathorax, the latter armed on each side behind with a long acute spine: a transverse spot on each side of the three basal segments of the abdomen and the extreme apical margins of all the seg- ments above, pale testaceous: wings fusco-hyaline: legs dull rufous. Female — Black, opaque, distinctly and closely punctured, densely pubescent; the vertex and cheeks clothed with fine golden pubescence, the face and clypeus with dense bright silvery pubescence ; antenna? stout, piceous. Thorax densely and rather roughly punctured ; ante- 146 [January rior lateral angles of the collar prominent and subacute ; the central impressed line of the mesothorax. the suture in front, the lateral and posterior margins, the tubercles and pleura, clothed with golden pile ; scutellum black, rugose, channelled down the middle, depressed and golden at base; postscutellum golden on each side, with two short, ob- tuse, flattened, slightly recurved mucro on the disk; metathorax rugose, the posterior angles large, and produced on each side into a long, stout, acute, strongly divergent spine, densely golden and broadly tipped with yellowish-white, the large basal triangular enclosed space irregularly channelled down the middle, and slightly golden ; tegulae rufous, pube- scent. Wings subhyaline. darker in the marginal cell and on the apical margins; nervures blackish. Legs dull rufous, thinly clothed with golden pubescence ; coxae black, rufous at tips, densely clothed with silvery pubescence. Abdomen rather closely punctured, somewhat coarser at base, becoming finer and indistinct towards the apex, some- what shining, the extreme base silvery, the extreme apical margins of the segments bright golden ; on each side of the three basal segments posteriorly a rather large transverse pale testaceous spot, larger and ovate on the basal segment, and smallest on the third segment ; apical segment flattened on the disk, carinate on each side and obtuse at tip; venter rather deeply punctured, shining, somewhat silvery. Length 3j lines; expanse of wings 5k lines. Male. — Resembles the female, with the antennae entirely piceous, the fourth segment of the abdomen has a small obscure testaceous spot on each side behind, and the apical segment is armed at tip with two small, distant, obtuse, flattened teeth. Length 4 lines; expanse of wings 7 lines. Collect ion. — Ent. Soc. Philad. Two specimens. Genus HARPACTUS. Jur. Harpactus insularis, n. sp. Black; inner orbits, clypeus, base of antenna?, line on prothorax above, tu bercles, transverse line beneath wings, scutellum, most of legs, and apical bands on the first, second and fourth segments of abdomen, yellow; metathorax golden- sericeous ; wings subhyaline, with a large fuliginous spot on the costa near the tip. Female. — Black, shining, covered with a very fine subargenteous pile, more obvious on the under surface; inner orbits, not reaching the vertex, and the clypeus, yellowish, covered with a fine silvery pile, bright in certain lights; mandibles piceous; palpi paler; antennae blackish-piceous, shading into pale rufous towards the base, basal joint yellow. Thorax finely, but not closely punctured ; the prothorax above, 1865.] 147 tubercles, an elongate mark behind the tubercles and immediately be- neath the anterior wings, a spot on the tegulae, and the scutellum. bright yellow; pleura densely covered with subargenteous pile, the metathorax with dense golden-sericeous pile; the latter rounded above and behind, with a few longitudinal striae at base, just behind the postscutellum ; mesothorax broad, immaculate. Wings subhyaline, the anterior pair slightly tinged with fuscous, and with a large dark fuliginous patch covering the marginal, second submarginal, and nearly the whole of the third submarginal cells; nervures fusco-ferruginous, the costa and stigma fulvous. Legs fusco-ferruginous ; the four anterior femora be- neath, a line on their tibiae and tarsi, the posterior femora beneath at tips, and their tibiae exteriorly except tips, yellow; anterior tarsi ciliated with long pale setae, the middle and posterior tibiae covered exteriorly with numerous short spines. Abdomen shining, finely and densely punctured, somewhat sericeous, the apex acuminate and slightly in- curved ; the first, second and fourth dorsal segments each with a more or less broad, apical, yellow band, sinuate anteriorly, that on the first segment emarginate on the anterior middle; two apical segments faintly tinged with piceous; beneath rufo-piceous, the second segment with an apical band as on the dorsal segment. Length 5 lines; expanse of wings 9-} lines. Collection. — Dr. J. Glundlach. One specimen. Harpactus scitulus, n. sp. Black; inner orbits, clypeus, mandibles and tegulse, piceous; base of antennae, prothorax above, tubercles, spot behind tegulse, a spot beneath the wings, scu- tellum, spot on each side of metathorax, legs in part, and bands on the first, second and fourth segments of abdomen, yellow; wings hyaline, fuscous on the costo-apical half. Female. — Black, shining; inner orbits, not reaching the vertex, cly- peus, mandibles and palpi, dull rufo-piceous, more or less clothed with a very fine silvery pile ; antennae piceous, paler towards the base, the two basal joints yellow. Thorax smooth, shining, and apparently im- punctured ; the prothorax above, tubercles, a large transverse spot be- neath and a small spot behind the tegulae, scutellum, and a large ovate spot on each side of the metathorax, bright yellow; the latter smooth and shining, the triangular basal space striated at base ; tegulae dull piceous. Wings subhyaline, the costo-apical half, except extreme tips, fuscous, darker about the marginal and second and third submarginal cells; costa and stigma pale yellowish. Legs piceous, black, shining; a spot on the coxae beneath, the four anterior femora, except base, their tibiae, a spot on the posterior femora beneath at tips, and their tibiae 148 [January except tips, yellow ; most of the tarsi fusco-ferruginous, the two ante- rior pairs yellowish at base ; anterior tarsi not ciliated. Abdomen shining, very minutely punctured, except the two apical segments, which are rather deeply punctured ; the first, second and fourth seg- ments with apical yellow bands as in the preceding species, as well as the band on the second ventral segment ; venter black, shining. Length 3? lines; expanse of wings G\ lines. Collection. — Dr. J. Gundlach. One specimen. Very similar to the preceding species, but is readily distinguished by the much smaller size and by the large yellow spots on the uietathorax. Genus ALYSON. Jurine. Alyson aculeatus. n. sp. Black; face silvery; antennae, most of legs and abdomen, piceous, the two basal segments of the latter rufous, the apical segment armed with two very long and slender, sting-like spines; wings hyaline, iridescent, with a faint cloud across the apical third. Male. — Black, shining, thickly clothed with a fine whitish pile ; face silvery; mandibles pubescent, pale testaceous, piceous at tips ; antenna? piceous, the apical joints beneath subferruginous, basal joint beneath with a pale testaceous line. Thorax smooth above, very minutely and densely punctured beneath ; uietathorax elongate, subquadrate, rugose, the dorsal base with an elongate subtriangular space enclosed by a rather sharp carina, striated at base, and carinated down the middle, posterior angles small and subacute ; tegulae rufo-piceous. Wings hyaline, iri- descent, with a faint fuscous cloud across the apical third, and occupy- ing the whole of the marginal cell ; nervures fuscous, stigma paie ; second submargiual cell petiolated. Legs piceous-black, slightly pu- bescent; tips of the femora, the tibia? and tarsi rufo-piceous; posterior femora terminating beneath in a stout acute tooth. Abdomen smooth and polished, slightly pubescent, piceous-black, the two basal segments rufous, except the disk of the first and a large spot on the apex of the second segments, which are piceous ; terminal segment truncate at tip. with two very long, slender, acute, sting-like, pale ferruginous, spines, diverging posteriorly. Length 3 2 lines; expanse of wings 4| lines. Collection. — Dr. J. Gundlach. One specimen. Fain. CRABRONID.E. Genus TRYPOXYLON. Latr. Trypoxylon excavatum. Smith. Trypoxylon excavatum. Smith, Brit. Mus. Cat. Hym. iv, p. 380. Collection. — Ent. Soc. Philad. Four specimens. 1865.] 149 Trypoxylon succinctum, n. sp. Black; metathorax and the three basal segments of abdomen, except a large black spot above, honey-yellow: wings hyaline, beautifully iridescent; face :md pleura silvery. Female — Black; face densely clothed with brilliant silvery pube- scence, filling up the deep emarginations of the eyes ; cheeks silvery ; antennae piceous above, ferruginous beneath. Thorax minutely punc- tured, shining; a transverse line in front of the niesothorax, a line over the tegulae, and a patch on each side of the scutelluui. of silvery pu- bescence ; pleura rather densely clothed with silvery pubescence ; meta- thorax honey-yellow, blackish at the base above, which is finely and obliquely striated, the posterior face rather deeply channelled, aud clothed with a bright silver}^ pubescence, more dense towards the tip ; tegulae pale testaceous. Wings hyaline, beautifully iridescent; ner- vures blackish. Legs, including the coxae, honey-yellow ; tips of the intermediate tibiae and their tarsi, tips of the posterior femora and their tibiae and tarsi entirely, more or less dusky. Abdomen shining, clothed with a very fine, thin, glittering pubescence, more obvious towards the tip ; the three basal segments honey-yellow, each with a large transverse black spot on their dorsal surface, that on the first segment on its apical third ; apical segments black, except the basal margin of the fourth segment, which is honey-yellow. Length oj lines ; expanse of wings Ah lines. Collection. — Dr. J. Gundlach. One specimen. Genus OXYBELUS, Latr. Oxybelns analis, n. sp. Black: mandibles, tegulae and apex of abdomen, fulvous; face silvery: line on collar, tubercles, sides of scutellum, and a transverse line on each side of the four basal segments of abdomen, whitish : wings hyaline ; metathorax armed at base with a long bifid mucro. Female. — Black, finely punctured, slightly pubescent, the face cov- ered with a silvery down, very bright when viewed from above ; man- dibles yellowish at base, fulvous in the middle and piceous at tips ; eyes large, brown ; antennae black, the middle broadly ferruginous, tip of the scape yellowish. Thorax finely and closely punctured, slightly pubescent; niesothorax faintly tinged with bronze; an interrupted line ou the collar, tubercles, a small spot on each of the scutellum at base, and the squama on the posterior margin of the scutellum. whitish, the latter with an acute central longitudinal carina : metathorax truncate be- hind, shining, irregularly striated, with acute elevated lines and a deep excavation beneath the mucro. which is rather long, dilated towards the apex, hollowed above and deeply emarginate at tip; tegulae rufo- 150 [January fulvous. Wings hyaline, very faintly tinged with fuscous, slightly iri- descent ; nervures blackish. Legs black, thinly clothed with a pale glittering pubescence ; the anterior femora at tips beneath and their tibia? exteriorly, more'or less yellowish-white; tibiae tinged with pice- ous, spurs yellowish ; tarsi ferruginous at tips. Abdomen black, finely and closely punctured, the four basal segments with a narrow, trans- verse, yellowish-white line on each side of the apical third, rather broadly margined behind with silvery-white pubescence, more conspicu- ous when viewed in certain lights ; the two apical segments rufo-ful- vous, the terminal one carinated on each side, the earina converging towards the apex. Length 2} — 2f lines ; expanse of wings 4 — 4f lines. Male. — Resembles the female, but is smaller, the anterior tibiae and tarsi are mostly yellowish or testaceous, and their femora more broadly yellow at tip, the four posterior tibia? have a yellow line behind, and their femora at tip beneath are more or less yellow; the base of the fifth abdominal segment is more or less black, and the two apical ones entirely rufo-fulvous, the extreme tip is slightly emarginate. Length If — 2 j lines; expanse of wings 3 — ol lines. Collection. — Ent. Soc. Philad Two 9 , four % specimens. Genus CRABRO. Fabr. \. Abdomen petiolated. Crabro auriceps, n. sp. Black; face and cheeks golden; mandibles, scape of antennre. collar, tuber- cles and a transverse band behind them, scutellums. most of legs, and three bands on abdomen, the two last interrupted on the disk, yellow ; abdomen fer- ruginous at tip and beneath : wings fusco-hyaline, darker at tips. Male. — Black ; head very large, subquadrate, broader in front than behind; vertex opacjue ; the face, a transverse line above the mandi- bles, and the cheeks or broad outer orbits, clothed with dense, bright golden pubescence; mandibles, except extreme tips, yellow ; antenna? black, the two basal joints entirely yellowish. Thorax opaque-black ; an uninterrupted line before the mesothorax, the tubercles and a broad transverse band just behind them, basal half of the scutellum, connected with a spot on each side at base, a small spot on each side near the base of the wings, and a transverse narrow line suddenly constricted and pointed at each end, all yellow ; pleura and metathorax with a slight golden pubescence, the latter abrupt behind, entirely black, sub- opaque, and covered with fine irregular striae, the disk with a central, longitudinal impressed line ; tegulae honey-yellow. Wings pale fusco- hyaline, much darker along the costa at tip ; nervures fuscous. Legs yellow ; coxae piceous, posterior pair mostly yellowish ; all the femora 1865;] 151 more or less tinged with ferruginous behind, the posterior pair blackish before; tips of all the tarsi dusky. Abdomen petiolated, strongly sub- fusiform, shining, the four basal segments black above, the first with a yellow band near the tip, deeply indented on the disk in front ; second segment with a rather large sublunular yellow spot on each side about the middle, dilated on each side and nearly reaching the disk of the segment ; third segment black, stained with ferruginous on each extreme side ; fourth segment with a narrow, transverse yellow band interrupted on the disk, the extreme sides stained with ferruginous; remaining segments, as well as the entire venter, ferruginous ; extreme apex slightly pubescent. Length 5i lines; expanse of wings 8 lines. Collection. — Ent. Soc. Philad. One specimen. Crabro claviventris. n. sp. Black : face, cheeks and pleura silvery : scape of antennae, elypeus, tubercles and most of the four anterior legs, yellow; two bands on abdomen and the ven- ter entirely, fulvous; wings hyaline; abdomen strongly clavate ; hind tibia? much swollen. Malt'.. — Black, subopaque; head rather large, quadrate; face, elypeus and cheeks densely clothed with bright silvery pile; elypeus and man- dibles yellow, the latter black at tips ; antennae pale piceous, the two basal joints yellow, the second obscurely so. Thorax: pleura and meta- thorax rather densely clothed with bright silvery pile; the incisure in front of the mesothorax very deep; tubercles and tegulaa yellowish, the latter tinged with ferruginous; metathorax with a rather deep central excavation on its posterior face. Wings hyaline, beautifully iridescent ; apical margins slightly dusky. Legs yellow ; the four posterior coxte, except tips, and the posterior legs, except base and tips of their tro- chanters and base of their tibiae, blackish ; tips of intermediate femora and middle of their tibiae, dusky ; posterior tibiae very much swollen beyond the basal fourth, which is very slender. Abdomen elongate, very slender at base, and very much swollen at tips, shining; first seg- ment long, basal two-thirds cylindrical, swollen at tip, black, remaining segments fulvous, the dorsal surface of the second, a large, broad, sub- triangular mark on the dorsal surface of the third and fourth, c.wering their apical half and basal middle, and the entire dorsal surface of the remaining segments, black; venter entirely fulvous. Length 2i lines; expanse of wings 4 lines. Collection. — Dr. J. Grundlach. One specimen. This curious little species seems to belong to the subgenus Rhopahun. and may be at once recognized by its strongly and suddenly clavate abdomen, and the much swollen hind tibiae. 152 [January gg. Abdomen subsessile. Crabro cubensis. n. sp. Black; face, cheeks and clypeus, golden; basal half of antennae, prothorax. tubercles, spot before tegulee, scutellums, legs, and five transverse spots on each side of abdomen, yellow : wings fusco-hyaline. Female. — Black, opaque ; head large, quadrate, very densely and finely punctured ; sides of the face, clypeus, extending on each side beneath the eyes, and the cheeks, densely clothed with bright golden pubescence; antennae with the three basal joints, yellow, the fourth fulvous, the remainder blackish. Thorax deeply and rather closely punctured , prothorax narrow, yellow, sharply earinated in front, with the lateral anterior angles reflexed and very acute; tubercles, and a rather large, oblique, subcuneiform mark before the wings, yellow; scu- tellum shining, sparsely punctured, entirely yellow, extreme sides acute, with a small spot on each basal corner; postscutellum with a narrow, transverse, yellow line; metathorax irregularly rugose, the sides trans- versely rugose, the posterior face abrupt ; tegulae dull honey-yellow, shining. Wings pale fusco-hyaline. darker at tips; nervures ferrugi- nous. Legs yellow, their coxae and apical half of the posterior femora black, tips of the tarsi dusky; the four anterior femora sometimes tinged with ferruginous. Abdomen subsessile. short, ovate, convex, shining, very minutely punctured ; sides of all the segments, except the apical one, with a more or less transverse, yellow line or spot, those on the first and fifth segments smallest, those on the fourth longest and nearly meeting on the disk; venter entirely black, shining. Length 4 — 5 lines; expanse of wings 7 — 8 lines. Collect irm. — Ent. Soc. Philad. Three specimens. Crabro croesus, St. Farg. Solenius crcesus, St. Farg. Ann. Soc. Ent. Fr. iii, p. 727; Hym. iii, p. 132. Dahlb. Hym. Europ. i, p. 388. Guer. LaSagra's Hist. Cuba, Ins. p. 767. Crabro crcesus. Smith, Brit. Mus. Cat. iv, p. 424. Collection. — Ent. Soc. Philad. Two specimens. Genus PSEN, Latr. Psen argentifrons, n. sp. Black, shining ; face silvery ; tubercles, tibise and tarsi, yellow ; apical mar- gins of abdominal segments obscure testaceous; wings hyaline, iridescent, third submarginal cell with its outer nervure angular. Female. — Black, shining; head rather wider than the thorax; face, beneath the insertion of the antennae, the clypeus and the cheeks, densely clothed with bright silvery pubescence; mandibles ferruginous, black at tips ; antennas blackish above, rufo-piceous beneath. Thorax shining, finely punctured ; a line over the collar, most of the pleura. 1865.] 153 postscutelluni, and sides of metathorax, clothed, more or less, with pale. glittering, somewhat silvery pubescence ; tubercles yellowish ; meta- thorax rugose; tegulae dull honey-yellow. Wings hyaline, iridescent; nervures blackish; second submarginal cell receiving the first recurrent nervure near its base; third submarginal cell nearly twice the width of the second, its outer nervure bent inwards above the middle, the second recurrent nervure sinuate, received by the third submarginal cell at the extreme base. Legs blackish, the four anterior tibiae and tarsi, and the base of the posterior tibiae, whitish. Abdomen oblong-ovate, shining ; first segment with a rather long, slender petiole ; apical margins of all the segments, except the last, obscure testaceous; apical segment pube- scent. Length 3 lines; expanse of wings 4i lines. Male. — Resembles the female, but is more slender, the antennae longer, and except the tips, entirely blackish; the abdomen much more elongate beyond the petiole, and the extreme apex acute and slightly recurved. Collection. — Dr. J. Gundlach. Two specimens. Genus CERCERIS, Latr. Cerceris flavocostalis. n. sp. Ferruginous; broad orbits, tip of antennse, collar, tegulse, most of pleura, scu- tellum, spots on metathorax, most of legs, and the first and apical margins of remaining abdominal segments, yellow ; wings fusco-hyaline, costa broadly yellow; abdomen very minutely punctured. Female. — Dull ferruginous, opaque, slightly pubescent; head large, broader than the thorax, yellow, stained on the vertex, occiput and cheeks with ferruginous; the sides of the lace, when viewed from above, have a bright silvery reflection ; vertex flattened, with a transverse, slightly arcuated, blackish line, passing just behind the ocelli, and down the middle of the face are two blackish lines on which the antenna' are situated, divided by a yellowish line which is elevated and acutely carinate between the antennae; clypeus strongly produced, slightly convex, truncate at tip, dull ferruginous, with a yellow, subtriangular spot on its disk ; mandibles long, acute, honey-yellow, black at tips ; antennae dull fulvous, fuscous above near the middle, the four apical joints orange-yellow. Thorax opaque, dull ferruginous; collar, most of pleura, tegulae, scutellum, the triangular space on the dorsal base of the metathorax, as well as its sides, and two small approximate spots on the posterior face, all yellow; mesothorax with two very indistinct longitu- dinal lines on the disk; pleura prominent; the central well impressed line of the metathorax and its extreme tip, about the insertion of the abdomen, black, Wings tusco-hyaline, the posterior margin and the 154 [January posterior pair subhyaline, the costa broadly yellowish. Legs yellow- ish, the anterior trochanters and femora dull ferruginous, the four pos- terior coxa3, trochanters, femora and tips of posterior tibiae, piceous ; posterior femora gradually dilated towards the tips with the apex trun- cate and the margins reflexed, and when viewed endways it is circular, the tibia? inserted on the inner side of the circle; the tibiae spinose ; tarsal claws dusky. Abdomen dull ferruginous-brown, very minutely punctured, subopaque; the first segment and the apical margins of the four following segments, above and beneath, yellow ; apical segment with its disk flattened and enclosed on each side by a longitudinal carina, converging at base, and fringed with pale brownish pubescence, the enclosed space finely rugose; the ventral segments clothed with yellowish-sericeous pubescence, longer and more dense on the apical margins. Length 7J lines; expanse of wings 12 lines. Male. — Resembles the female, but is smaller and slenderer; the head is not so large, the clypeus not produced, but flattened, large and semi- circular, the pieces on each side fringed with golden pubescence ; the antennae are longer, the mesothorax is margined with blackish ; the metathorax wants the two small approximate yellowish spots beneath the triangular basal piece; the anterior femora at base and the four posterior femora, are black ; the abdomen is narrower and more pube- scent, the basal half of the first segment is dull ferruginous, and the apical margin of the sixth segment is also yellow. Length 5j lines; expanse of wings 9 lines. Collection. — Dr. J. Grundlach. Two specimens. Cerceris triangulata. n. sp. Ferruginous ; face, collar, spot beneath the wings, tegulse, scutellum, a large, sublunular spot on each side of metathorax, legs, and the first and narrow apical margins of the third," fourth and fifth segments of abdomen, yellow; basal tri- angular piece on metathorax black; wings fusco-hyaline, costa pale yellowish ; abdomen deeply and coarsely punctured. Female. — Head large, subquadrate, opaque, ferruginous, deeply and closely punctured, slightly pubescent; face, cheeks, clypeus and basal half of mandibles, yellow; when viewed from above, the lower part of the face is bright silvery; clypeus elevated, short and convex above, obliquely and broadly truncate, and flattened beneath; antennae fulvous. Thorax opaque, dull ferruginous, deeply and closely punctured, pube- scent; the collar, a spot beneath the wings, tegula?, scutellum, and a large sublunular spot on each side of metathorax, yellow; tip of meta- thorax dull ferruginous, the triangular enclosed basal piece black and obliquely striated. Wings pale fusco-hyaline, darker at the apex along 18G5.] 155 the costa ; costa, from the stigma to the base, pale yellowish. Legs. including their coxae, yellow; the anterior femora and tips of the tarsi tinged with ferruginous; posterior tibias dilated at tip, with the margins reflexed, as in the preceding species. Abdomen dull ferruginous, sub- opaque, deeply and grossly punctured ; most of the first segment and the apical margins of the third, fourth and fifth segments obscurely, yellowish, the latter much attenuated in the middle and wider on the sides; apical segment and venter more or less pubescent. Length t! lines; expanse of wings 9 lines. Collection — Dr. J. Gundlach. One specimen. Closely allied to C. flavocostnlit, but is at once distinguished by the deep and coarse punctation. Cerceris bilunata, n. sp. Black, coarsely punctured; apical half of abdomen ferruginous; face, collar, tegulse, spot beneath the wings, scutellum, two large lunular spots on metatho- rax, legs, a band on the first and second abdominal segments and narrow api- cal margins of the third and fourth segments, all yellow; wings fusco-hyaline. dark at tip. Male. — Black, deeply and coarsely punctured, slightly pubescent; face, a small spot behind the antenna), clypeus, mandibles, except tips, and line or spot on the cheeks, yellow ; clypeus large, flat, rounded at base and in front; the space on each side of clypeus fringed with sil- very pubescence; antennae obscure fulvous, fuscous beyond the middle nearly to the tips, sometimes entirely fulvous; basal joint beneath yellowish. Thorax black ; the collar, a spot on each side of pectus, tegula;, a spot beneath the wings, scutellum, and a large lunular spot on each side of metathorax, all yellow; postscutellum tinged with fer- ruginous, the enclosed triangular basal space black and obliquely stri- ated. Wings pale fusco-hyaline, much darker at tips ; nervures pale. Legs yellow, the tarsi more or less tinged with ferruginous. Abdomen deeply and coarsely punctured, the three basal segments black, the remaining segments ferruginous, sometimes the apical half of the third seoment is ferruginous ; the first and second segments each with a DO/ O rather broad apical yellow band, the third and fourth segments with narrow yellow apical margins, subobsolete on the fourth segment; be- neath, the second segment is almost entirely yellow, the remainder fer- ruginous, clothed with sericeous pubescence. Length 4h lines; expanse of wings 6f lines. Collection. — Ent. Soc. Philad. Two specimens. Easily recognized by the tricolored — black, ferruginous and yellow — abdomen. 156 [January Cerceris festiva, n. sp. Black, feebly punctured ; face, collar, tegulae, spot beneath the wings, scutel- lum, a longitudinal spot on each side of metathorax, four anterior legs, basal two-thirds of hind tibiae, and apex of the four basal segments of abdomen, yel- low: wings fusco-hyaline, darker at tips. Male. — Black, shining, feebly punctured, slightly pubescent ; face, broad frontal and narrow outer orbits, clypeus. carinse between antennae, and base of mandibles, yellow; clypeus large, flattened, rounded at base and in front, the pieces on each side densely clothed and fringed with silvery pubescence ; antennae ferruginous, yellow at base, and fuscous above towards the tips. Thorax shining, very feebly punctured; collar, tegulae, tubercles and a spot just beneath them, scutellum and a large longitudinal spot on each side of the metathorax, yellow ; the latter feebly punctured and polished. Wings subhyaline, the apical costal half fuscous, as well as the tips of the posterior wings. Legs yellow ; the posterior pair, except the basal two-thirds of their tibiae, black ; the four anterior tarsi more or less dusky towards the tips. Abdomen shining, feebly punctured; apical margins of the first four dorsal seg- ments yellow, broad at the sides and much narrowed in the middle ; fifth segment with a small yellow spot on each side ; beneath, the second and third segments each with a yellow band slightly narrowed in the middle. Length -i\ lines; expanse of wings 6 lines. Collection. — Dr. J. Gundlach. One specimen. Cerceris zonata, n. sp. Black, deeply and coarsely punctured ; face, collar, tegulse, spot beneath the wings, scutellums, most of legs, and apical margins of abdominal segments, vellow ; wings subhyaline. darker at tips. Female. — Black, subopaque, deeply and coarsely punctured, slightly pubescent; face, clypeus. mandibles except tips, and a spot behind the summit of the eyes, yellow; face silvery; clypeus large, flattened; an- tennae ferruginous, yellow at base. Thorax : collar, tegulae, spot be- neath the wings, scutellum and postscutellum, yellow ; metathorax entirely black, roughly punctured, the triangular enclosed basal space rugose, the incisures deeply impressed, continuing down the disk to the insertion of the abdomen. Wings subhyaline. dusky at tips, slightly iridescent; nervures and stigma blackish. Legs yellow; the coxae ex- cept tips, a spot at base of the four anterior femora, the posterior femora except tips, and tips of their tibiae, black, their tibiae sometimes dusky. Abdomen coarsely punctured ; a broad band on the first segment, and the posterior margins of the four followiug segments narrowly, yellow- ish, the latter wider on each side; venter piceous. the second and third 1865.] 157 segments with obscure yellowish lateral spots or interrupted bands. Length 3 lines ; expanse of wings 5 lines. Male. — Resembles the female, with the antennae longer, and the sixth abdominal segment margined posteriorly with yellow like the fifth. Collection. — Ent. Soc. Philad. Four specimens. Closely resembles C. festiva, but is smaller and at once distinguished by the immaculate metathorax and coarse punctation. Fam. EUMENID.E. Genus ZETHUS, Fabr. Zethus rufinodus, Latr. Eumenes rufinoda, Latr. Gen. Crust, ot Ins. iv, p. 137, pi. 14, fig. 5, $>. Sauss. Mon. Guepes. Sol. p. 42. Zethus rufinodus, Sauss. Mon. Guepes. Sol. Suppl. p. 118, pi. 6, fig. 3, 9 • Collection. — Dr. J. Gundlacb. One specimen. Zethus Poeyi, Sauss. Zethus Poeyi, Sauss. Eev. Zool. 1857, p. 270. Collection. — Ent. Soc. Philad. Three £ , four % specimens. Genus EUMENES, Latr. Eumenes abdominalis, Drury. Sphex abdominalis, Drury, Illustr. Ins. i, pi. 45, fig. 2. Vespa attenuata, Oliv. Encycl. Meth. vi, p. 674. Fabr. Syst. Ent. p. 372; Spec. Ins. i. p. 469; Mant. Ins. i. p. 293; Ent. Syst. ii. p. 282. Polistes attenuatus, Fabr. Syst. Piez. p. 279. Eumenes abdominalis, Sauss. Mon. Guepes. Sol. p. 70. Guer. in LaSagra's Hist. Cuba, Ins. p. 768. Eumenes colona, Guer. in LaSagra's Hist. Cuba, Ins. pi. 19, fig. 1. Collection. — Ent. Soc. Philad. Two £ , one % , specimens. This species is erroneously figured by Gruerin in LaSagra's Hist. Cuba, as E. colona Sauss., and states that that species, as well as E. ornata Sauss., is found on the Island of Cuba. I have not seen speci- mens of either species from that locality. Eumenes cubensis, n. sp. Fuscous; orbits, clypeus, anterior margin of prothorax, subtriangular spot beneath the wings, two spots on mesothorax, anterior margin of scutellum, post- scutellum, part of metathorax, tibiae and tarsi, apex of petiole of abdomen, and two bands on the second segment, yellow; wings fusco-hyaline, fuliginous at tips. Female. — Head fuscous, very densely punctured, slightly pubescent ; the orbits, filling up the deep sinus in front, a subtriangular mark be- tween the antennae, and the clypeus, bright yellow ; clypeus smooth, deeply emarginate at tip ; mandibles and palpi pale ferruginous ; an- tenna? bright ferruginous, paler at base, the seventh to tenth joints 158 [January more or less blackish. Thorax fuscous, very densely punctured, clothed with a short, pale yellowish pubescence, becoming quite white on the metathorax; anterior margin of the prothorax, a subcuneiform mark on each lateral margin of the mesothorax, a large subtriangular mark on each side of the pleura anteriorly, most of the tegulae, anterior margin of the scutellum dilated on each side, the postscutellum, and the dorsal surface enclosing a large subrhomboidal fuscous mark which occupies most of the disk, all more or less bright yellow; pleura and metathorax covered with a very short, fine silvery-sericeous pile, more obvious in certain lights. Wings subhyaline, the costal margin broadly stained with yelluwish-fuscous ; the apical margins dusky, especially the mar- ginal cell. Lees fusco-ferruffinous : the anterior femora beneath, their tibiae, the intermediate femora beneath at tip, their tibiae, as well as the posterior tibiae, yellow; all the tarsi yellowish-ferruginous. Abdomen fuscous, covered with a very short, dull yellowish pubescence; the petiole or basal segment nearly as long as the head and thorax, slen- der and blackish at base, gradually dilated to the tip which is truncate and broadly margined above and beneath with yellowish, the anterior middle of the yellow margin deeply indented above, and about the dorsal middle of this segment there is a large dull ferruginous stain ; remaining segments subglobose, the second segment very large, with a yellowish band across the middle and another on the apical margin ; apical segments fusco-ferruginous ; beneath pale fusco-ferruginous, the second segment with a broad yellowish band. Length 7 lines; expanse of wings lOj lines. Col I n. — Dr. J. (lundlach. One specimen. Eumenes ferruginea, n. sp. Pale ferruginous : orbits, clypeus, anterior margin of prothorax and scutellum, postscutellum, spot beneath the wings, legs in part, and apex of first and second segments of abdomen, obscurely yellowish; middle of antennae blackish; wings pale yellowish-hyaline. Male. — Uniformly pale ferruginous, slightly pubescent; orbits of the eyes, filling up the deep sinus in front, and the clypeus, obscure pale yellowish ; clypeus elongate, deeply notched at tip, and silvery in cer- tain lights ; vertex and occiput fuscous ; antenna) longer than the head and thorax, ferruginous, more or less blackish between the base and tip, the latter thickened and then suddenly tapering to an acute poiut, the terminal joint very slightly curved at tip. Thorax very closely punctured, somewhat hoary in certain lights ; anterior margin of the prothorax, a spot beneath the tegulae, a subobsolete spot on each side of the mesothorax, anterior margin of the scutellum dilated on each 1865.] 159 side, postscutellum, and a rather large spot on each side of the metatho- rax at tip, ohseure yellowish; mesothorax narrowly margined, before and behind, with blackish. Wings pale yellowish-hyaline, more deeply yellowish along the costa, the marginal cell slightly dusky; nervures pale testaceous. Legs pale yellowish-ferruginous, fuscous at base, the tibiae and tarsi paler. Abdomen shining ; basal segment fuscous, punc- tured, longer than the thorax, slender at base and gradually dilated towards the tip, which is truncate and margined above and beneath with yellow; on each side, about the middle, there is a short obtuse tubercle, the dorsal surface is convex, with several dull ferruginous stains; remaining segments pale ferruginous, the second large, convex, inure or less stained with pale fuscous, with the apical margin narrowly yellow ; beneath, the second segment has an obscure yellowish spot on the disk. Length 4J lines; expanse of wings 7 lines. Collection. — Dr. J. G-undlach. One specimen. Genus ODYNERUS, Latr Odynerus Proetus, n. sp. Dull ferruginous ; base of clypeus, inner orbits, prothorax in front, spot be- neath tegulee, scutellums, most of metathorax, legs in part, and apical margins of abdominal segments, yellowish; wings deep yellowish-hyaline. Female. — Head dull ferruginous, dusky above the insertion of each antenna, around the ocelli, and on the occiput; inner orbits of the eyes, filling up the deep sinus, a small subcordate mark between the an- tenna?, the clypeus, and most of the mandibles, yellowish ; clypeus large, closely punctured, flattened on the disk and slightly and obtusely emarginate at tip; mandibles black at tip; palpi pale ferruginous; an- tennae yellowish-ferruginous, the flagellum tinged with fuscous above, the scape yellowish beneath. Thorax fusco-ferruginous, closely and rather deeply punctured, covered with a very short, fine, dull yellowish, subsericeous pile; broad anterior margin of the prothorax above, continued in a narrow line to the tegulaa, and a large spot on each side of the pleura just beneath the tegulae. yellowish; mesothorax fusco- ferruginous, tinged with blackish on the anterior and posterior margins, the disk with two distant, very faint, longitudinal, ferruginous lines, confluent behind the middle ; scutellum and postscutellum yellowish, the apical margin of the former blackish, and the yellowish portion divided down the middle by a faint fuscous line; metathorax yellow, the suture between it and the postscutellum, as well as a large spot on the apical middle, fusco-ferruginous, posterior face rather suddenly de- pressed, with a small tubercle on each side at the angulation; pleura 160 [January fuscous beneath ; tegulae dull yellowish, with a ferruginous stain on the middle. Wings deep yellowish-hyaline, faintly dusky at tips; nervures honey-yellow. Legs deep yellowish, the femora above and at base be- neath pale ferruginous. Abdomen oblong-ovate, the basal segment dome-shaped, obtusely rounded at base, without transverse suture or carina, distinctly punctured, the remaining segments indistinctly so; apical margins of all the segments above narrowly yellowish, almost divided on the disk by a narrow line, those of the second and third segments broader and dilated on the extreme sides, especially on the first segment where there is a rather large triangular mark, the bands on the remaining segments more or less emarginate on each side ante- riorly; apical segment with a large, broad, angular, dull yellowish mark on the middle; beneath marked as above, except that the apical seg- ment is immaculate, and the second segment is almost entirely yellowish, with three ferruginous spots arranged transversely near the apical margin. Length 82 lines; expanse of wings 15 lines. Collection.— Dr. J. Gundlach. One specimen. Odynerus consors, n. sp. Black; orbits, spot between antennse, clypeus. mandibles, prothorax in front, tegulre, spot beneatb the wings, scutellums, most of metathorax and legs, and apical margins of abdominal segments, yellowish ; abdomen fuscous, the first and third segments blackish : wings yellowish-hyaline, apex dusky. Male. — Head black, deeply and closely punctured ; the orbits, filling up the sinus in front, a spot between the antenna?, dilated above, cly- peus, labrum, and mandibles, except tips, yellow, in oue specimen more or less ferruginous; antennse nearly as long as the thorax, terminated by a hook, black, tinged with ferruginous at base and tips, scape yel- lowish beneath. Thorax dull-blackish, densely punctured, slightly pubescent; broad anterior margin of prothorax continued in a narrow line to the tegulae, sometimes interrupted, a large spot beneath the tegulae, scutellum except its apical margin, and postscutellum, yellowish, sometimes tinged with ferruginous ; pleura slightly sericeous in certain lights, with an oblique dull yellowish stain on each side beneath ; meta- thorax mostly yellowish, the extreme sides spotted or stained with fus- cous, the posterior face deeply and broadly excavated, covered with fine transverse stria3, more or less distinct, and with a large blackish mark covering the disk and spreading out on each side at base ; lateral angles prominent and obtuse ; tegulae yellowish, with a ferruginous spot on the middle. Wings yellowish-hyaline, more deeply yellowish along the costa, the apex, especially about the marginal cell, dusky ; nervures honey-yellow. Legs yellow, the femora tinged with ferruginous above. 1865.] 161 Abdomen shaped and marked as in the preceding species, but the gene- ral color is fuscous, with the third, and sometimes the first, segments. except their apical margins, blackish, and the spot on the terminal seg- ment above is scarcely defined. Length 6£ — 71 lines ; expanse of wings 10] — VI lines. Collection. — Dr. J. (iundlach. Two specimens. This may possibly be the male of 0. Prcetus. Odynerus cubensis, Sauss. Odi/nerus cubensis, Sauss. Mon. Guepes. Sol. p. 181, pi. 18, fig. 8. Collection. — Knt. Soc. Philad. Six (S ?), specimens. Odynerus apicalis, n. sp. Black: clypeus, mandibles, transverse band above antennae, base of antennas, prothorax above, tegulae, spot beneath tegulse, scutellum, most of metathorax and legs, basal segment of abdomen except disk, and the apical margins of the second and third segments, yellowish, apical segments ferruginous ; wings fus- co-hyaline. Female — Opaque-black; head and thorax deeply and closely punc- tured, the former broader than the thorax, rather short; a broad trans- verse band on the front, filling up the sinus of the eyes and deeply and somewhat obliquely indented above the insertion of each antenna, broad posterior orbits and the clypeus, yellow, sometimes strongly tinged with ferruginous ; mandibles yellowish-ferruginous, sometimes yellowish at base ; clypeus depressed, rhomboidal. the extreme tip truncate ; an- tennae black, the two basal joints ferruginous. Thorax : prothorax yellow above, tipped with dull ferruginous just before the teguhe ; pleura somewhat sericeous, with a large, rounded, yellow spot beneath the tegulse ; mesothorax immaculate ; scutellum with two large, quad- rate, yellowish marks, nearly confluent ; postscutellum yellowish; me- tathorax finely and transversely striated, deeply excavated on the disk with a large yellowish mark on each side covering the lateral angles. which are rather prominent and obtuse ; tegulse yellowish, with a fer- ruginous dot on the middle. Wings subhyaline, faintly tinged with fuscous, honey-yellow along the costa, with the marginal cell almost entirely fuscous. Legs yellowish ; the femora except tips beneath, the tibiae beneath and most of the tarsi, pale ferruginous. Abdomen ovate, basal segment nearly equal in width to the second, remaining segments gradually tapering to the tip, and more deeply aud densely punctured than the basal segments ; first segment rounded at base without suture or carina, the apical margin confluent with a large angular mark on each lateral margin, yellowish; apical margin of the second and third segments, broader on the second segment, yellow, that on the third 162 [January sometimes tinged with ferruginous ; remaining segments, above and beneath, dull ferruginous; beneath, the apical margins of the second and third segments are narrowly yellowish, more or less sinuate on each side anteriorly. Length 6 lines; expanse of wings 10 lines. Male. — Similar to the female, but smaller; the markings of the face are tinged with ferruginous; the basal joint of the antennae is yellow within, with a black line above, the apical joint ferruginous and hooked ; the yellow of the prothorax does not continue all the way to the tegulae, being interrupted with black; fourth segment of abdomen is black with the apical margin, above and beneath, narrowly yellowish, remaining segments are obscure yellowish-ferruginous, more or less dusky at base ; beneath, the second segment has a yellow spot on each side of the mid- dle. Length -IJ lines; expanse of wings 7 J lines. Collection. — Ent. Soc. Philad., one % ; Dr. J. Gundlach. two 9 • specimens. Closely allied to 0. cubensis, but the face is much broader, and, as well as the basal segment of the abdomen, is differently marked, and the third segment is margined at tip with yellow. It may be a va- riety of 0. yuadulpensis Sauss. Odynerus cingulatus, n. sp. Black ; clyjjeus, spot between antennae, line behind the eyes, base of antennae, most of prothorax above, tegulse, spot beneath the wings, scutellums, most of legs, and apical bands on two basal segments of abdomen, yellow ; wings fusco- hyaline, the costal tip fuliginous. Female. — Black, opaque, slightly pubescent; head not broader than the thorax, rounded when viewed in front, closely and deeply punc- tured; a broad line behind the eyes, near their summit, a subcordate spot between the insertion of the antennas, and the clypeus, bright yel- low, the latter suborbicular, prominent, with the extreme tip slightly truncate ; mandibles piceous; antennae piceous, black at tips, the basal joint bright yellow. Thorax deeply and closely punctured, more so than the head; the prothorax abu\'e, but not reaching the tegulae, a round spot immediately beneath the anterior wing, tegulae, scutellum and postscutellum, bright yellow; metathorax truncate behind, reticu- lated, the posterior declivity obliquely striated. Wings fusco-hyaline, more deeply so along the costa; the extreme tip, especially the marginal cell, more or less fuliginous. Legs yellow; coxae and posterior femora, except tips, black ; tarsi tinged with ferruginous. Abdomen elongate ; basal segment somewhat dome-shaped, with a transverse carina anteri- orly on the verge of the truncation; posterior margin of the first and second segments above with a rather broad band, dilated on each ex- 1865.] 168 trerne side, that on the second segment continued beneath where it is indented on each side anteriorly ; apical segments closely punctured ; beneath shining. Length 5J lines; expanse of wings 9 lines. Collection. — Dr. J. Grundlach. One specimen. Odynerus obliquus, n. sp. Black ; clypeus, line between the antennae, line behind eyes, base of antennae, anterior margin of prothorax, spot on each side of metathorax, most of legs, apical margins of two basal segments of abdomen and an oblique spot on each side of the second at base, yellowish; wings subhyaline, marginal cell dusky. Female. — Black, deeply and closely punctured, slightly pubescent, somewhat shining; posterior orbits of the eyes, the sinus in front, a longitudinal line between the antennas, and the clypeus except its api- cal third, yellowish, more or less varied with dull ferruginous ; man- dibles piceous, with an exterior yellow line ; antennae black, the flagel- lum piceous at base, the long basal joint bright yellow. Thorax : broad anterior margin of prothorax, a rounded spot just beneath the anterior wiug, connected with a much smaller spot beneath, tegulae, except a minute black dot on the disk, a dot just behind the tegulae, scutellum, faintly divided down the middle, the postscutellum, and a rather large elongate spot on each side of the metathorax behind, yellow ; pleura sericeous. Wings subhyaline, faintly tinged with fuscous ; the costal margin stained with honey-yellow j the marginal cell, and the apical margins faintly, fuliginous. Legs yellow; the coxae, trochanters and the posterior femora, black ; tarsi fusco-ferruginous. Abdomen with the basal segment somewhat dome-shaped, deeply and closely punc- tured, with a transverse suture on the anterior margin, apical margins yellowish, slightly tinged with ferruginous, broader in the middle than on the side^s ; second segment large, convex, shining, delicately punc- tured, a rather broad apical band and an oblique spot on each side at base, dull ferruginous margined with yellowish, the apical band on this segment is continued beneath, but not so broad as above ; remaining segments gradually acuminate, entirely black. Length 4| lines; ex- panse of wings 8 lines. Male. — Resembles the female, except that the clypeus is entirely yellowish, the antennae are terminated by a hook, and all the markings, though situated as in the female, are bright yellow and not varied with ferruginous. Length 4 — 4} lines; expanse of wings 6J — 7* lines. Collection. — Ent. Soc. Philad. One 9 , two % specimens. Smaller than 0. cmgulatus, and at once distinguished by the basal oblique spot on each side of the second abdominal segment. 164 [January Odynerus bucuensis. Sauss. Odynerus Bucu. Sauss. Mon. Guepes. Sol. p. 185. Guer. in LaSagra's Hist, Cuba. [ns. p. 770. pi. 19, fig. 3. Odynerus Bucuensis, Sauss. Mon. Guepes. Sol. Suppl. p. 232. Collection. — Ent. Soc. Philad. Two % specimens. A small male specimen (3 lines long) varies by the abdomen being- tinged with fuscous and the spot on each side of the inetathorax being subobsolete. Odynerus dejectus, n. sp. Black: line behind tlie eyes, sinus in front, spot between antennae, most of clypeus. base of antennas, anterior margin of prothorax. spot on disk of meso- thorax, tegulre, a spot on each side behind them, a spot beneath the wings, post- scutellum, a mark on each side of metathorax, the tibiae, apical margins of the first, second and fifth segments of abdomen and a spot on each side of the two basal segments, yellowish; wings fusco-hyaline. Female. — Opaque-black, deeply and closely punctured; a line behind the eyes near their summit, the sinus in front, a spot between the in- sertion of the antennae, and the basal half of the clypeus, deeply and squarely emarginate before, obscure yellowish ; antennae black, the basal joint, except the apical half above, yellow. Thorax: the anterior margin of the prothorax slightly interrupted on the disk, a small quad- rate spot on the disk of the mesothorax posteriorly, tegulae, a minute spot on each side just behind the tegulae, a round spot on each side of the pleura just beneath the base of the anterior wings, the postscutellum, and an elongate mark on each side of the metathorax, yellowish. Wings fusco-hyaliue, darker along the costa, and especially in the marginal cell. Legs black; tips of the four anterior femora, their tibiae, and the pos- terior tibiae except tips, yellowish. Abdomen robust, not much con- tracted at base; basal segment roughly punctured, with a faint trans- verse suture at base, its apical margin broader on the middle, continued along the lateral margin and then produced within about one-fourth the width of the segment, yellowish; second segment large, convex, shining, finely punctured, more strongly so at tips; the apical margin above and beneath, and a rounded spot on each side near the base, as well as the apical margin of the fifth segment not quite reaching the sides, yellow. Length 4-J lines; expanse of wings Gi lines. Collection. — Dr. J. Grundlach. One specimen. Closely allied to 0. bucuensis, but is distinguished by its more robust form, the spot on the disk of the mesothorax. and the absence of bands on the fourth and sixth segments of the abdomen. It may, however, be the female of that species. 1865.] 165 Odynerus Enyo, St. Farg. Odynerun ehgans, Guer. Icon. Reg. Anim. Ins. ]>. 440, pi. 70, fig. j. Odynerus Enyo, St. Farg. Hym. ii, p. 04S. Sauss. Mon. Guepes. Sol. p. 185. Guer. in LaSagra's Hist. Cuba, Ins. p. 770. Collection. — Ent. Soc. Philad. Seven 9 , six % specimens. The % of this elegant species differs from the 9 by the smaller size, and by the clypeus, mandibles and line between the antennae being yellow, while in the $ they are black. Odynerus simplicicornis, Sauss. Odynerus simplicicornis, Sauss. Mon. Guepes. Sol. Suppl. p. 25?). Guer. in La- Sagra's Hist. Cuba, Ins. p. 771, pi. 19, fig. 5. Collection. — Ent. Soc. Philad. Six 9 , five % specimens. The nest of this species is somewhat of an oblate-spheroidal shape, constructed of fine earth of a beautiful fawn color. It is attached to a slender twig and measures 4] by (5 lines; sometimes two nests are attached, close together, to the same twig; the outer surface is uneven, and on the upper side there is a stout peduncle, by which the nest has been attached to another body. The opening made by the imago in its escape is large, and always on the side of the nest. Fain. VESPID^E. Genus POLISTES, Fabr. Polistes carnifex, Fabr. Vespa carnifex, Fabr. Syst. Ent. p. 305: Spec. Ins. i, p. 401: Mant. Ins. i, p. 288 : Ent. Syst. ii, p. 200. Christ. Hymen, p. 239. Oliv. Ency. Meth. vi, p. 081. Polistes carnifex, Fabr. Syst. Piez. p. 272. Sauss. Mon. Guep. Soc. p. 90, pi. 10, fig. 5. Guer. in LaSagra"s Hist. Cuba. Ins. p. 772. Polistes rufipennis, Latr. Voy. Humb. et Bonpl. Ins. ii. p. 97, pi. 38, fig. 4. Polistes major, Beauv. Ins. d'Afr. et d'Amer. p. 206, pi. 8, fig. 1. Polistes chlorostoma, St. Farg. Hym. i, p. 521. Polistes onerata, St. Farg. Hym. i, p. 524. Polistes valida, Say, Bost. Journ. Nat. Hist, i, p. 389. Polistes transversosignatus, Spinola, Voy. Entom. de Giuliani, p. 02. Collection. — Ent. Soc. Philad. Six ( % $ ) specimens. Polistes lineatus. Fabr. Vespa lineata. Fabr. Spec. Ins. i. p. 401 : Mant. I us. i. p. 2S8 : Ent. Syst. ii. p. 259. Oliv. Ency. Meth. vi. p. 5S1. Polistes lineata, Fabr. Syst. Piez. p. 271. Polistes lineatus, Sauss. Mon. Guep. Soc. p. 95, pi. 11, fig. 0. Polistes cubensis. St. Farg. Hym. i, p. 520. Collection. — Ent. Soc. Philad. Seven (% 9) specimens. Varies by the segments of the abdomen being more or less distinctly banded with blackish at base. 166 [January I have before me nine specimens of this species which have been attacked by parasitic fungi, similar to that figured by Saussure (Mon. Guep. Soc. pi. 5, fig. 9, and pi. 11, fig. 5) as attacking Icaria cincta and Pollutes americanus, except that the fungi which are developed, or swelled at the ends, have their stalks much longer than is represented in the figure of I. cincta. Polistes minor, Beauv. Polistes minor, Beauv. Ins. d'Afr. et. d'Amer. p. 207, pi. 8, fig. 3. Sauss. Mon. Guep. Soc. p. 96, pi. 11, fig. 3. Guer. in LaSagra's Hist. Cuba. Ins. p. 773. Polistes Poeyi, St. Farg. Hymen, i, p. 532. Collection. — Ent. Soc. Philad. Fifteen (S $) specimens. Polistes incertus, n. sp. Dull ferruginous, varied with yellowish ; vertex, middle of antennae, sutures of thorax, most of hind femora and tips of their tibiae, blackish; abdomen banded with yellow; wings stained with yellowish-fuscous, especially along the costa. Male. — Head yellowish ; a large quadrate mark on the vertex, en- closing the ocelli, and the posterior margin of the occiput, blackish ; antennae ferruginous, paler at tips and beneath, the middle above more or less blackish. Thorax dull ferruginous; broad margins of the pectus, most of the pleura, tegulae, most of scutellum, and the postscutellum, yellowish ; sutures of the pleura, a spot beneath the base of the wings, margins of the mesothorax, as well as a line down its middle, and the sutures between the scutellum, postscutellum and metathorax, black or blackish ; the posterior middle of the scutellum is dull ferruginous, so that the yellow forms a large spot on each side confluent on the basal middle ; metathorax dull ferruginous, with four longitudinal yellowish lines, one on each extreme side and two on the middle, divided by a deep, shining, blackish groove. Wings uniformly tinged with yellow- ish-fuscous, very deeply so in the costal and marginal cells. Legs yel- lowish, slightly tinged with ferruginous; the coxae within, the four anterior femora at base beneath, the posterior femora except tips, and their tibiae at tips above, black or blackish ; tips of the tarsi ferrugi- nous. Abdomen dull ferruginous, sericeous; basal segment slender at base and gradually dilated to the tip, with a slight prominence on each side about the middle ; base of the second segment rather suddenly constricted ; apical margins of all the segments with a broad yellowish fascia, dilated an each extreme side, more or less emarginate on each side anteriorly, and interrupted on the middle by a very narrow, faintly impressed, dull ferruginous line ; apex subtruncate ; beneath marked 1865.] 167 as above, except that the basal segment is entirely yellowish, with its posterior face flat, triangular and carinated on each side. Length Gi| lines; expanse of wings 11 J lines. Collection. — Ent. Soc. Philad. One specimen. This may be only a % variety of P. lineatus, but it is much smaller, slenderer, and somewhat differently marked, with the base of the first segment of the abdomen more slender and the second segment rather suddenly narrowed at base. Genus POLYBIA, St. Farg. Polybia phthisica, Fabr. Vespa phthisica, Fabr. Ent. Syst. ii, p. 281. Polistes phthisica, Fabr. Syst. Piez. p. 278. Polybia phthisica, Sauss. Guep. Soc. p. 186, pi. 23, figs. 7 — 8. Vespa cajennensis, Fabr. Ent. Syst. Suppl. p. 265. Coqueb. 111. Icon. Ins. p. 62, pi. 15, fig. 3. Polistes cajennensis, Fabr. Syst. Piez. p. 280. Polistes hectica, Fabr. Syst. Piez. p. 278 Vespa ochrosticta, Weber. Obs. Ent. p. 10-1. Vespa fasciata, Oliv. Ency. Meth. vi, p. 676. Polistes fasciata, St. Farg. et Serv. Ency. Meth. x, p. 172. Polistes fulvo-fasciaJa, Latr. Gen. Crust, et Ins. iv, p. 142. Collection. — Ent. Soc. Philad. Two $ , one % specimens. The specimens before me of this species are pale yellowish-ferrugi- nous, with the yellow markings generally more or less indistinct. Polybia cubensis, Sauss. Polybia cubensis, Sauss. Mon. Guep. Soc. p. 202, pi. 25, figs. 5—6. Guer. in LaSagra's Hist. Cuba, p. 774. Collection. — Ent. Soc. Philad. Nine ( £ $ ) specimens. The nest sent as belonging to this species, is shaped very similar to that figured by Saussure (Mon. Gruep. Soc. pi. 4, fig. 3a) as the nest of Icaria variegata. Fam. ANDRENID^E. Genus COLLETES, Latr. Colletes submarginata, n. sp. Black, clotbed witb whitish pubescence, disk of tborax with black pubescence : legs piceous; wings hyaline; abdomen polished, apical margins of the segments above fringed with white pubescence, broadly interrupted on the middle of the three basal segments. Female. — Black ; head closely and rather finely punctured, clothed with whitish pubescence, long and dense on the cheeks and beneath, shorter on the face and more dense and subappressed on the sides of the face, on the vertex the pubescence is more or less black ; clypeus 168 [January depressed, deeply and rather closely punctured, somewhat shining; immediately above the elypeus, between the insertion of the antennae, a semicircular prominence which has a few deep punctures; labrum and mandibles polished, the latter tinged with piceous and fringed with pale pubescence; antennae black, more or less tinged with piceous; the flagellum. except the two basal joints, dull rufo-testaceous. Thorax closely and finely punctured, rather densely clothed with short hoary pubescence, that on the mesothorax and scutellum more or less black, that on each side of the metathorax long and dense; scutellum deeply punctured ; posterior face of metathorax flat, channelled down the middle, with the sides feebly punctured, and the base and channel smooth and shining; just behind the postscutellmn a narrow space lon- gitudinally striated and extending the whole width of the metathorax; pleura closely punctured, rather sparsely pubescent, especially just be- neath the wings; tubercles beneath the tegulae clothed with black pube- scence and fringed posteriorly with dense white pubescence ; tegulae piceous-black, smooth and polished. Wings hyaline, the extreme tip tinged with fuscous; nervures black. Legs piceous-black; the four anterior femora densely clothed with long hoai'y pubescence, their tarsi and the posterior tibiae and tarsi with short, dense, yellowish-brown pubescence. Abdomen smooth and polished; base of the first segment clothed with hoary pubescence, the apical margins of the first five seg- ments fringed with white pubescence, widely interrupted on the middle of the three basal segments and entire on the others ; apical segments feebly punctured and thinly clothed with short pale pubescence; be- neath black, tinged with pale piceous towards the tip. Length 5] lines; expanse of wings 8'. lines. Collection. — Ent. Soc. Philad. One specimen. Genus HALICTUS. Latr. Halictus Poeyi, St. Farg. Halktu.t Poeyi, St. Farg. Hym. ii, p. 271. Collection. — Ent. Soc. Philad. Ten (S ?) specimens. Genus AUGOCHLORA. Smith. Augochlora Regina. Smith. Augochlora Regina, Smith. Brit. Mus. Cat. i, p. 77. Collection. — Ent. Soc. Philad. Eight (S ?) specimens. This lovely species varies in length from 4 J to 6 lines; some speci- mens are more tinged with bluish than others, and the legs vary from pale piceous to black. 1865.] 169 Augochlora praeclara, n. sp. Brilliant metallic green ; abdomen oblong-ovate, tinged with bluish; wings hyaline, apical third dusky; legs blue-green, clothed with pale pubescence. Female. — Head bright golden-green, finely and very closely punc- tured, clothed with a short pale pubescence ; the prominence beneath the base of antennas indistinctly punctured ; clypeus strongly tinged with blue, depressed, subquadrate, sparsely and rather deeply punctured, the anterior margin fringed with pale pubescence; mandibles purplish- blue at base, piceous at tips; antennae dull black, basal joint purplish- blue. Thorax bright golden-green, very finely and closely punctured, sparsely pubescent; scutellum indistinctly punctured, clothed with rather long, pale pubescence, slightly mixed with black ; metathorax slightly tinged with bluish, clothed, especially behind, with pale pube- scence, the base with a transverse, semicircular space which is covered with fine radiating stria3, posterior face flat, subcordate, finely sculp- tured, golden-green; tegulae blue-green, polished. Wings hyaline, the apical third tinged with fuscous; nervures and stigma fuscous. Legs green, more or less tinged with bluish; the tibiae and tarsi rather densely clothed with short pale pubescence; apical joints of the tarsi dull tes- taceous. Abdomen oblong-ovate, much narrowed towards the base, smooth and polished, green, more or less tinged with bluish, especially on the apical margins of the segments which have a purplish hue in certain lights; the base, sides and apex of the abdomen thinly clothed with pale pubescence; venter flattened, blue-green, rather densely clothed with subappressed, pale pubescence. Length 4 lines; expanse of wings 7 lines. Collection. — Ent. Soc. Philad. One specimen. Augochlora elegans, n. sp. Green ; abdomen and legs bluish, the former subsericeous, with a splendid violet reflection ; wings hyaline ; abdomen oblong-ovate. Male. — Head brilliant green, more or less tinged with bluish in cer- tain lights, very finely and densely punctured, clothed with pale pube- scence, which is long on the cheeks, and more or less black on the vertex and occiput ; face subtriangular, depressed ; the prominence beneath the base of the antennae large, elongate, rather deeply and very closely punctured and margined on the sides and above with a deep violet hue ; clypeus produced, quadrate, subconvex, more or less bluish in certain lights, covered with deep and close punctures, the apical margin trun- cate ; mandibles piceous, blue-green at base; antennae half again as long as the head, entirely black, the scape clothed with whitish pube- scence. Thorax brilliant green, finely, closely and uniformly punctured. 170 [January sparsely clothed with fine whitish pubescence, longer, more dense and mixed with black on the scutellum and metathorax ; mesothorax with three finely impressed, abbreviated, longitudinal lines, one on the disk and one on each side over the tegulae ; thorax beneath more or less tinged with deep blue; scutellum bright golden-green, rather sparsely punctured and somewhat depressed on the disk ; postscutellum blue- green, roughly punctured ; metathorax slightly tinged with bluish in certain lights, rounded on the sides, very finely and closely punctured, the posterior face depressed, but not abruptly, less distinctly punctured with a rather deep, longitudinal, impressed line, extreme base with a transverse, semicircular, depressed space which is covered with fine longitudinal striae, slightly radiating posteriorly; tegulae bronze-green, polished. Wings hyaline, faintly iridescent, the extreme apical margin faintly dusky ; nervures brown-black. Legs brilliant blue-green, clothed with fine hoary pubescence; tarsi rufo-piceous. Abdomen oblong-ovate, strongly tinged with blue, and with a beautiful violaceous reflection in certain lights, polished, very delicately punctured, the apical margins depressed especially on the sides and impunctured, clothed with a very short, fine, pale pubescence, giving the segments a beautiful sericeous appearance when viewed in certain lights ; the pubescence at the base, the extreme sides and apex of the abdomen longer and slightly mixed with black; venter flattened, blue-green and pubescent. Length 4} lines ; expanse of wings 7 lines. Collection. — Ent. Soc. Philad. and Dr. J. Gundlach. Two specimens. Augochlora magnifica, n. sp. Green; face, legs and abdomen more or less deeply tinged with blue; abdo- men oblong-ovate, the segments broadly margined at tip with violet: wings hyaline. Male. — Shaped and sculptured as the preceding species; brilliant green, clothed with pale pubescence ; the face more or less deeply tinged with bluish, and above the antennae it is of a deep, opaque, pur- plish-blue hue ; antennae dull black, somewhat piceous. Thorax as in the preceding species ; tegulae brownish. Wings hyaline, nervures pale-brownish. Legs as in the preceding species, except that they are more or less tinged with piceous and the femora have a violet reflection. Abdomen oblong-ovate, polished, very delicately punctured, brilliant blue-green, with the apical margins of the segments depressed, impunc- tured, and broadly violaceous; extreme apex tinged with dull testa- ceous. Length 4i lines; expanse of wings 7 lines. Collection. — Dr. J. Grundlach. One specimen. 1865.] 171 Much like A. elegans, but is at once distinguished from that species by the abdominal segments being beautifully margined with violaceous. Augochlora parva, Poey MSS. Dark bronze-green; abdomen tinged with piceous ; head tinged with dull- blue, the face densely pubescent; wings hyaline. Female. — Head large, broader than the thorax, dark bronze-green, tinged with opaque deep blue on the vertex, very closely and finely punctured ; sides of the face beneath the antennae, the clypeus and the cheeks, densely clothed with short silvery-white pubescence ; clypeus more deeply punctured, depressed and truncate at tip ; antennae entirely piceous-brown. Thorax dark bronze-green, somewhat shining, very closely and finely punctured, clothed with a thin pale pubescence, longer and more dense on the scutelluui and metathorax ; mesothorax with three indistinctly impressed longitudinal lines; scutelluui polished, less closely punctured ; metathorax bronze-green, the base with a transverse row of short, longitudinal, radiating striae, the posterior face with a deep pit; tegulae pale-brownish, polished. Wings hyaline, iridescent; ner- vures dull testaceous. Legs piceous, pubescent; tarsi yellowish. Ab- domen ovate, subdepressed, clothed with short pale pubescence, rather dense at tip, dark bronze-green, tinged with piceous at base and with bluish towards the apex, the apical margins of the segments mostly dull testaceous, subdepressed and impunctured. Length 21 lines; ex- panse of wings 4 lines. Male. — Resembles the female, but is less robust, the antennae are rather longer than the head and thorax, the latter is more densely pu- bescent, the wings beautifully iridescent, the legs pale piceous with their tarsi yellow, and the abdomen more slender and elongate, entirely pale piceous, with the segments rather strongly contracted at base. Length 2 lines; expanse of wings 31 lines. Collection. — Ent. Soc. Philad Four $ , one $ , specimens. Genus AGAPOSTEMON, Guer. Agapostemon femoralis, Guer. Andrena femoralis, Guer. Icon. Reg. Anim. iii, p. 447, pi. 73, fig. 1 ; LaSagra's Hist. Cuba, Ins. p. 775, pi. 19, fig. 7. Agapostemon femoralis, Smith, Brit. Mus. Cat. Hym. ii, p. 88. Collection-. — Ent. Soc. Philad. Forty £ specimens. I have two % specimens before me which differ from the above only by having the head and thorax dull black, very faintly tinged with obscure bluish, instead of being brilliant blue-green. It is probably only a variety. 172 [January Agapostemon semiviridis, n. sp. Metallic green; antennpe, legs and abdomen black, the second, third and fourth segments of the latter with a white fascia at base, broader on each side ; wings hyaline, apical margins dusky. Female. — Head bluish-green, finely and very closely punctured, clothed with pale pubescence, longer on the cheeks and slightly mixed with black on the vertex ; cheeks finely aciculate ; anterior margin of the clypeus piceous, truncate and fringed with long pale pubescence ; mandibles piceous ; antennae piceous, the flagellum paler. Thorax bright golden-green, sometimes tinged with coppery, very closely and minutely punctured, or very finely granulate, clothed with short pale pubescence, slightly mixed with black above ; scutellum brilliant golden- green, sparsely punctured; sutures between the mesothorax, scutellum. postscutellum and metathorax tinged with deep blue in certain lights ; metathorax covered with close, fine stride, those at the base longitudinal and radiating posteriorly, those on the sides transverse or somewhat oblique, posterior face with a large, suborbicular, depressed space en- closed by a sharp, well-defined carina, and covered with fine striae which radiate from the tip of the metathorax ; a densely pubescent semicircu- lar space just behind the tubercles which are polished; teguhie rufo- testaceous. Wings hyaline, slightly iridescent, the apical margins tinged with pale fuscous ; nervures brownish. Legs pale piceous, densely clothed, especially the posterior pair, with pale ochraceous pu- bescence ; anterior tibiae and all the tarsi rufo-testaceous ; anterior coxae green. Abdomen ovate, opaque black, the extreme base, the lateral and apical margins clothed with short pale pubescence : basal margins of the second, third and fourth segments above with a band of dense, white, appressed pubescence, dilated on each side and more or less interrupted on the third and fourth segments ; apical segment clothed with coarse black pubescence, with a longitudiual depressed space on the disk fringed with pale pubescence ; venter piceous, clothed with pale brownish pubescence. Length 6 lines ; expanse of wings 9 lines Collection. — Ent. Soc. Philad. Three specimens. This may be the $ of A. femoralis Guer. Agapostemon festivus, n. sp. Bright green, abdomen tinged with blue: anterior half of clypeus, labrum. mandibles, base of antennae, most of legs, and basal margin of first three or four segments of abdomen, yellow; wings hyaline. Male. — Head green, golden on the face and tinged with obscure blue on the vertex, finely and closely punctured, clothed with pale pu- 1865.] 173 bescence, long and more dense on the cheeks, and pale ochraceous on the face ; anterior half of the clypeus, labrum and the mandibles, yel- low, the latter piceous at tips ; antennae as long as the head and thorax, piceous-brown, dull fulvous beneath, basal joint beneath yellow. Tho- rax brilliant green, clothed with rather thin pale pubescence ; meso- thorax very finely and closely punctured, and in certain lights the disk has a dull blackish shade, and a finely impressed longitudinal central line; pectus and pleura rugose, golden-green; tubercles smooth and polished with a semicircular pubescent space just behind them ; space on each side between the pleura and metathorax transversely rugose; metathorax irregularly rugose, more finely so on each side, the base covered with well-defined somewhat irregular striae radiating posteri- orly, the posterior face with a rather large, orbicular, depressed, bright golden-green space, enclosed by a sharply-defined carina, the surface somewhat rugose with a central line ; tegulse pale brownish or rufo- testaceous. Wings hyaline, somewhat iridescent, the apical margins slightly dusky; nervures fuscous. Legs yellow, pubescent ; coxae green ; trochanters except a line beneath, tips of the femora, and the tibiae ex- teriorly, dark fuscous ; tarsi yellow, more or less tinged with dusky ; posterior femora elongate, robust but not globose. Abdomen ovate, delicately punctured, bright green tinged with blue, the basal segment more or less dull piceous; apical margins of the segments subdepressed ; across the middle of the first segment an irregular, transverse, yellow band, and at the extreme base of the second, third and sometimes the fourth segments a regular, more or less broad, yellow band, below these bands on the second and third segments there is an opaque blackish, transverse shade; venter dull fulvo-testaceous. Length 3$ — 4 lines ; expanse of wings 5 — 6 lines. Collection. — Ent. Soc. Philad. Three specimens. Agapostemon Poeyi, Lucas. Andrena Poeyi, Lucas. Guer. LaSagra's Hist. Cuba, Ins. p. 775. Female. — Brilliant green, clothed with pale pubescence ; head short, rather broad, very densely and deeply punctured ; clypeus short, trans- verse, the anterior margin black and fringed with long pale pubescence ; labrum and mandibles piceous, the latter green at base ; cheeks coarsely aciculate ; antennae short, piceous. Thorax very densely punctured, somewhat tinged with golden; mesothorax very finely and closely punc- tured, somewhat rugose; scutellum sparsely punctured on the disk, shining, golden-green ; metathorax densely striated, the striae at the base radiating posteriorly, those on the sides oblique, the posterior face 174 [January with a large, subquadrate, depressed, transversely striated space en- closed by a sharply-defined carina; tegulaa fuscous. Wings hyaline, very faintly tinged with pale fuscous, especially on the apical margins ; nervures fuscous. Legs piceous. clothed with pale ochraceous pube- scence, longer and more dense on the posterior pair. Abdomen ovate, very minutely punctured, shining, bright green, more or less tinged with blue, the base, sides and apex clothed with pale pubescence; when viewed in certain lights, the disk of some of the segments have a trans- verse band of a deep violet hue; apical segment densely clothed above with fuscous pubescence; venter green, pubescent. Length 4| lines; expanse of wings 71 lines. Collection. — Ent. Soc. Philad. One specimen. Not being quite sure that this species is correctly referred, I give a. more detailed description of it, Genus NOMIA. Latr. Nomia Robinsoni. n. sp. Black; head and thorax clothed with ochraceous pubescence ; antennae be- neath and the legs rufo-testaceous ; wings subhyaline ; abdomen with three or four beautiful green or golden-green bands. Female. — Black ; head rather densely clothed with sh jrt pale pube- scence; face broad and flat, deeply and rather closely punctured; an- tennae piceous-black, the flagellum beneath brownish. Thorax closely and rather finely punctured ; mesothorax clothed with short fuscous pubescence, anterior margin with a line of short, dense, pale ochraceous pubescence extending on each side to the base of the wings and cover- ing the tubercles; pleura thinly clothed with pale pubescence, the post- scutellum with short, very dense, pale ochraceous pubescence; meta- thorax finely punctured, the posterior face concave and the sides with a patch of rather long pale pubescence ; tegulse piceous. Wings hya- line, the apical margins broadly pale fuscous ; nervures pale ferrugi- nous. Legs piceous. densely clothed with short pale pubescence; pos- terior tibia) and tarsi pale testaceous, densely pubescent. Abdomen ovate, black, somewhat shining, very delicately punctured; the base, sides, and lateral apical margins of the first segment fringed with pale pubescence ; apical margins of all the segments depressed and impunc- tured, those of the second, third and fourth segments pale emerald- green, with a beautiful golden-yellow reflection ; apex rather densely clothed with pale pubescence; venter piceous, densely pubescent. Length b% lines ; expanse of wings 9 lines. Male. — Black; face densely clothed with short, ochraceous pube- scence; antennae longer than the head and thorax, gradually attenuated 1865.] 175 to the tips, piceous, the flagellum fulvous beneath. Thorax as in the 9 , except that the pubescence is more dense and entirely oehraceous and somewhat sericeous ; scutellutn slightly depressed on the middle ; metathorax shining and sparsely punctured. Wings as in the 9 . Legs yellowish-testaceous, clothed with short pale oehraceous pubescence ; the cox;ie, trochanters, femora, especially above, and a small spot on the posterior tibiae exteriorly, fuscous; posterior tibia? short, subtriangular, much dilated and compressed at tip within, with a prominent, obtuse, compressed tubercle on the inner edge ; basal joint of the posterior tarsi longer than their tibiae and slightly dilated at base. Abdomen oblong-ovate, the apical margins of the second, third, fourth and fifth segments above emerald-green, with a beautiful bright golden-yellow reflection, the band on the fifth segment does pot extend to the lateral margins; in one specimen the apical bands have a beautiful orange- ferruginous or igneous reflection. Length 5^ — 6 lines; expanse of wings 9 — 10 lines. Collection. — Ent. Soc. Philad. One 9 , three $ specimens. It gives me pleasure to dedicate this elegant species to my friend Coleman T. Robinson, Esq.. of New York City. Fam. APLILE. Genus PANURGUS, Panz. Panurgus ? parvus, n. sp. Dark green, shining; abdomen piceous, segments contracted at base; face densely clothed with silvery -white pubescence; wings hyaline, iridescent. Female. — Dark green, shining; head very closely and minutely punctured ; the face, clypeus and cheeks clothed with a dense, short, silvery-white pubescence ; antennas as long as the head and thorax, stout, piceous, the flagellum beneath rufo-testaceous. Thorax thinly clothed with whitish pubescence, finely punctured, rather sparse on the mesothorax, the disk of which is slightly depressed; at the basal middle of the metathorax a semicircular depressed space, covered with fine radiating striae ; tegulae rufo-testaceous. Wings hyaline, iridescent; nervures fuscous. Legs piceous, thinly clothed with pale pubescence ; tarsi paler. Abdomen oblong-ovate, subdepressed, piceous, smooth and polished; second and third segments contracted at base; apical margins of the segments subdepressed and paler; the apex and venter clothed with pale pubescence. Length 2 lines; expanse of wings 3o lines. Male. — Resembles the 9 , but the antennae are longer and the abdo- men narrower and not depressed. 1 76 [January Collection. — Ent. Soc. Philad. % ; Dr. J. Gundlach 9 . Two speci- mens. This species does not answer exactly to the characters of the genus in which I have placed it, but I am unable, at present, to refer it to another which seems more allied. It bears a very close resemblance to Augochlora parva described above (p. 171), but is separated at once by the anterior wings having only two submarginal cells. The neura- tion of the wings is very similar to that of Panurgus. Genus MEGACHILE, Latr. Megachile atriceps, n. sp. Black: thorax and base of abdomen clothed with ochraceous pubescence, rest of abdomen with bright ferruginous pubescence; wings bright yellow, the apical margin fuliginous. Female. — Large, elongate ; head large, subglobose, not wider than the thorax, black, clothed with short, dense, blackish-fuscous pube- scence, that on the cheeks longer and whitish, very closely and minutely punctured; clypeus very transverse, rugose, the apical margin truncate; mandibles large, dull black, subobsoletely striated and interspersed with scattered, ill-defined punctures, and clothed with a very short, thin, pale ochraceous pubescence; antennae as long as the width of the head, black, the flagellum beneath brownish. Thorax black, very closely and minutely punctured, rather densely clothed with ochraceous pubescence, paler beneath, and much longer and more dense on the metathorax ; tegulge rufo-testaceous. Wings bright gamboge-yellow, the apical mar- gins broadly fuliginous ; nervures fulvo-ferruginous. Legs black, clothed with pale pubescence, the tarsi within with ferruginous pubescence. Abdomen oblong, not broader than the thorax, the sides subparallel. black, densely clothed with short, bright ferruginous pubescence, longer and more dense on the apical margins of the segments, and deeper in color towards the apex; sides of the basal segment clothed with rather long, dense, ochraceous pubescence ; ventral scopa dense and bright ferruginous, ochraceous at base. Length 9 lines; expanse of wings 14 lines. Collection. — Ent. Soc. Philad. Two specimens. This fiue. large species is readily recognized by the elongate, parallel form, the black head, deep yellow wings, and bright ferruginous pube- scence of the abdomen. Prof. Poey writes me that "it makes its nest in dry wood, which it pierces like the Xylocopse." 18G5.] 17: Megachile Poeyi, Guer. Megachile Poeyi, Guer. Icon. Reg. Anim. iii, p. 450; LaSagra's Hist. Cuba, Ins. p. 778, pi. 19, fig. 10. Collection. — Ent. Soc. Philad. Three 9 , three % specimens. Prof. Poey informs me that he has -'found the nest of this species. formed of cuttings of leaves, under stones. It has for its enemy the Leucospis Poeyi Guer." Megachile singularis, n. sp. Black; head and thorax densely clothed with ochraceous pubescence; wings fuseo-hyaline; tibise and tarsi yellowish-fuscous, the anterior tarsi pale and broadly dilated; abdomen narrower than the thorax, elongate-subquadrate. the apex bidentate. Male. — Black, very closely and finely punctured ; head large, trans- verse, rather wider than the thorax, the face densely clothed with long ochraceous pubescence, pale on the clypeus, the pubescence on the vertex, occiput and cheeks rather short and tinged with fuscous ; eyes large and elongate ; mandibles flattened, subtriangular, being subacute at tip and broadly dilated beneath about the middle; on the lower mar- gin of the cheeks the pubescence is long and pale ochraceous; antennae about as long as the width of the head, black, filiform, the apical joint dilated and compressed. Thorax above densely clothed with dull och- raceous pubescence, somewhat mixed with black on the disk ; on the pleura and the metathorax behind the pubescence is sparse especially on the latter; tegulse piceous, pubescent in front. Wings fusco-h va- line, the apex, especially abcut the marginal cell, fuliginous; posterior pair clearer; nervures dull ferruginous. Legs pubescent, shining; coxse, trochanters, anterior femora above and the four posterior femora entirely, piceous-black ; the anterior femora beneath, and all the tibia", dull yellowish-fuscous; the four posterior tarsi paler, and clothed with golden-yellow pubescence ; anterior tarsi yellowish-white, the three basal joints broadly and obliquely dilated, and having behind a pale, thick fringe, much longer and yellowish on the basal joint; apical joint fuscous; intermediate tarsi very long and slender, being three times as long as their tibiae, gradually attenuated to the tip, the terminal joint nearly as long as the first joint, with the claws very long, slender, deeply cleft, and very acute; posterior tarsi not much longer than their tibiae, stout, the basal joint dilated, the other joints short and subacute, the claws stout and cleft. Abdomen elongate-subquadrate, about as long as the head and thorax and not so wide as the latter, subdepressed, sides parallel, apical and basal margins of the segments depressed, the anterior face of the first segment deeply concave; dorsal segments 178 [January thinly clothed with an erect dull ochraceous pubescence, long on the basal segment and very short on the remaining segments ; basal margins of the third and fourth segments and almost the whole of the two apical segments clothed with a short, dense, appressed, ochraceous pubescence; the last segment incurved, with a rounded, depressed, naked space on the disk, below which on the posterior margin are two short, distant, subacute teeth; venter flat, piceous, shining. Length 6 lines; expanse of wings 10$ lines Collection. — Dr. J. Grundlach. One specimen. Megachile curta, n. sp. Black: head and thorax densely clothed with long pale pubescence, which is black on the vertex and scutellum; antennae long; legs simple; wings hya- line: abdomen short, incurved at tip, the basal margins of the segments with a narrow fascia of whitish pubescence as well as an uneven line between meso- thorax and scutellum. Male. — Short and robust, black, very closely and minutely punc- tured; head large, transverse, rather broader than the thorax, the face densely clothed with long pale ochraceous pubescence, on the vertex and occiput it is black, and on the cheeks and beneath it is long and white ; eyes large ; mandibles moderate, black, acute at tip and fringed beneath with pale pubescence; antennae piceous, pale beneath, fili- form, slender, as long as the head and thorax together, terminal joint pointed not dilated nor compressed. Thorax short, robust, clothed above with black pubescence, slightly mixed with whitish, on the pleura and beneath it is rather longer and entirely whitish; nar- row anterior margin of the mesothorax, covering the tubercles, two short, oblique, longitudinal lines on the disk of the mesothorax in front, and its posterior margin broader above the tegulae and in front of the scutellum, clothed with short, appressed, pale ochrace- ous pubescence ; scutellum clothed with long black pubescence, and the metathorax. especially on the sides, with long pale pubescence; tegulae piceous. Wings hyaline, the apical margins pale fuscous and slightly iridescent ; nervures fuscous. Legs simple, piceous-black, and clothed, especially the femora beneath, with rather long whitish pube- scence ; anterior femora beneath at tip tinged with ferruginous. Abdo- men very short, about as broad as long, incurved at tip, shining, pice- mis-black, the apical and basal margins of the segments depressed; basal segment clothed with long pale pubescence ; apical lateral mar- gins of the segments fringed with whitish pubescence, and the basal margins of the second and third, and almost the whole dorsal surface of the two following segments, clothed with a very short, dense, appressed. 1865.] lf» pale ochraceous pubescence ; tip of the terminal segment very slightly emarginate ; ventral segments with an apical fringe of whitish pube- scence. Length 4 lines; expanse of wings 7 lines. Collection. — Dr. J. Ghindlach. One specimen. Megachile maura, n. sp. Entirely black; wings fusco-hyaline ; legs piceous. Female. — Deep shining black, clothed with short, dense black pube- scence ; the clypeus, a flattened space above it, vertex, disk of mesotho- rax, scutelhun and the abdomen above except the basal segment, naked, smooth and polished ; clypeus depressed, rather closely punctured ; mandibles robust, broad at tip, sparsely punctured, shining, and deeply grooved along the outer margin; antenna; piceous-black, the flagellum pale beneath. Thorax finely and sparsely punctured ; anterior middle of the mesothorax with a longitudinal impressed line abbreviated on the disk ; scutellum with a few subobsolete, scattered punctures, the tip rounded ; tegulae piceous. Wings fusco-hyaline, darker on the apical margins ; posterior pair clearer; nervures dull ferruginous. Legs pice- ous, clothed with blackish pubescence, the anterior tibia? rugose exte- riorly. Abdomen short, broad at base, gradually narrowed to the tip which is obtusely pointed and somewhat recurved; the basal segment above thinly clothed with short black pubescence, larger and thicker on the sides; remaining segments above naked, smooth, polished and indistinctly punctured, the apical margins depressed on each side and sometiiues pale piceous ; apical segment opaque dark fuscous, obtuse- truncate at tip ; ventral scope black, long and dense. Length 6 lines ; expanse of wings 11 lines. Collection — Ent. Soc. Philad. Two specimens. Closely allied to M. morio Smith, and M. xylocopoidcs Smith, but distinct from both species by the punctation being much less dense. Genus CERATINA. Latr. Ceratina cyaniventris. n. sp. Bright metallic-green, polished; abdomen deep blue; wings subhyaline, iri- descent. Female. — Head bright metallic green, slightly tinged with bluish in certain lights, deeply and rather closely punctured, slightly pubescent ; clypeus sparsely punctured with a conical whitish mark on the disk, the anterior margin truncate and blackish; antennre piceous. Thorax bright metallic green, slightly tinged with bluish in certain lights, closely and distinctly punctured, sparse on the disk of the mesothorax. which is tinged with golden-green and has four, indistinctly impressed. ISO [January longitudinal lines, the middle one abbreviated behind, the extreme late- ral one abbreviated before; tegulae piceous. Wings subhyaline, faintly tinged with fuscous, iridescent; nervures blackish. Legs green, pu- bescent, the tibiae and tarsi piceous. Abdomen subglobose, broader behind, deep blue, tinged with green and purple when viewed in cer- tain lights, closely and rather deeply punctured, the punctures becom- ing coarser and somewhat rugose towards the tip, which is slightly in- curved and clothed with a thin pale pubescence ; venter pubescent. Length 8 lines ; expanse of wings 5 lines. Collection. — Ent. Soc. Philad. One specimen. Genus NOMADA. Fabr. Nomada cubensis. n. sp. Piceous-black ; face, orbits, cheeks, mandibles, base of antennae, collar, tu- bercles, tegulse. large mark on pleura, scutellum, two spots on metathorax, most of legs, and three bands and four spots on abdomen, yellow : wings sub- hyaline, fuscous at tips. Female. — Piceous, closely punctured, slightly pubescent; face, orbits, and mandibles except tips, yellow; clypeus and labrum, dull ferrugi- nous ; antennae fulvous above, yellowish-fulvous beneath. Thorax opaque, coarsely punctured, somewhat rugose ; collar, tubercles, tegulae, and a large subquadrate mark on pleura, yellow; the pleura beneath tinged with dull rufous, with two round, obscure ferruginous spots be- fore the middle coxae ; scutellum entirely yellow, subbilobate, somewhat prominent, with a small yellow spot on each extreme basal corner; postscutellum with a transvere yellow line; metathorax with a large, subovate, yellow mark on each side behind. Wings fusco-hyaline. darker at the extreme apex ; nervures dull ferruginous, stigma yellow- ish. Legs yellow ; the coxae, except a spot beneath, the trochanters and the femora, more or less tinged with fuscous; apical joints of tarsi dusky. Abdomen short, ovate, polished, pale piceous, very mi- nutely and closely punctured; first and second dorsal segments with a rather broad, median, yellow band, attenuated on the middle anteri- orly; on each side of the third and fourth segments, a yellow spot; the fifth segment almost entirely yellow ; apical segment truncate at tip and densely pubescent; beneath pale piceous, pubescent, the third segment with a broad, continuous, yellow band. Length 3| lines; expanse of wings 6] lines. Male. — Resembles the female, but is piceous-black, with the yellow markings brighter; the clypeus and labrum are yellow ; the antenna' are obscure fulvous, paler beneath, with the basal joint beneath tinged 1865.] 181 with yellowish; the two round spots before the middle coxae are yellow; the anterior wings have a fuscous cloud at their apex ; the fifth segment of the abdomen has a continuous yellow band, the remaining segments immaculate and pubescent, and the apical segment obtusely pointed and depressed. Same size as the female. Collection. — Ent. Soc. Philad. % ; Dr. J. Gundlach 9 . Five speci- mens. Nomada flaviceps, n. sp. Pieeous-black ; most of head, collar, tubercles, tegulfe, large mark on pleura, scutellums, two spots on metathorax, most of legs, and three bands on abdomen above, bright yellow ; wings subhyaltne, apex fuscous. Male. — Head bright yellow, polished, with a few very indistinct scat- tered punctures; a large quadrate spot, commencing at the insertion of the antennas, extending back and covering the ocelli, the labrum, tips of mandibles, throat, and the extreme posterior margin of the cheeks, piceous-black ; a minute spot before each posterior ocellus and two ap- proximate spots before the anterior ocellus, yellow ; antennas nearly as long as the head and thorax, rufo-piceous, the tips blackish. Thorax piceous-black, polished, the mesothorax finely and sparsely punctured, pleura apparently impunctured; collar, tubercles, tegulas, and a large mark on pleura deeply emarginate beneath, bright yellow; scutellum subbilobate, entirely bright yellow, as well as a minute spot on each extreme basal corner and a transverse line on postscutellum ; metatho- rax very finely punctured, slightly pubescent, with a subtriangular yellow spot on each side behind. Wings pale fusco-hyaline, faintly iridescent, a fuscous cloud at the extreme tip ; nervures pale ferrugi- nous, stigma and the costal nerve of the marginal cell yellowish-fulvous. Legs yellowish ; coxae piceous, with a yellow spot beneath, very large on the posterior pair; the tour anterior trochanters and femora dull ferruginous; posterior trochanters and femora except tips, fuscous; tips of tarsi dusky. Abdomen piceous-black, smooth and polished, slightly pubescent; a broad, continuous, bright yellow band on the middle of the two basal segments and a narrow one on the fourth, almost hidden by the third segment; apical segment depressed and obtusely pointed; beneath, the third segment has a continuous, bright yellow band, gra- dually attenuated on the middle posteriorly. Length 4 lines; expanse of wings 7 lines. Collection. — Dr. J. Gundlach. One specimen. This elegant species is allied to A r . cubensis, but is easily distinguished by the sparse punctation and the almost entirely yellow head; the markings of the abdomen are also different. 182 [January Nomada tibialis, n. sp. Piceous, with a purplish reflection, especially on the abdomen : sides of the face, spot on the middle, most of clypeus, base of mandibles, collar, tubercles, two spots on pleura, spot on coxae, basal joint of posterior tarsi exteriorly, and apical margins of abdominal segments, whitish ; legs ferruginous; wings sub- hyaline, fuscous at tips. Female. — Head broad, piceous-black, shining, indistinctly punctured. clothed with a short silvery-white pubescence, dense on the cheeks ; sides of the face broader beneath, a minute spot beneath the base of the antennas, a transverse mark on the clypeus much produced in the middle posteriorly, and a spot on base of mandibles, white ; antennae nearly as long as the head and thorax, piceous. Thorax piceons-black. with a slight purplish reflection in certain lights, polished, sparsely and fiuely punctured ; mesothorax and pleura mostly tinged with obscure rufous, the latter clothed with a thin silvery-white pubescence ; collar, tubei'cles, two spots on each side of pleura, the anterior one the smallest, and two spots at base of the scutellum. white ; scntellum subbilobate. slightly pubescent ; metathorax smooth and polished, immaculate, the sides above densely clothed with appressed silvery pubescence; tegula; piceous. Wings subhyaline. faintly iridescent, the apex with a fuscous cloud; nervures fuscous; third submarginal cell nearly as long as the first, and very much constricted towards the marginal. Legs ferrugi- nous, thinly clothed with whitish pubescence; a spot on the four pos- terior coxae beneath, and a line on the basal joint of the posterior tarsi exteriorly, white. Abdomen ovate, piceous-black with a strong purplish reflection, shining, the second segment, except its apical margin, very densely and minutely punctured, the rest apparently impunctured ; near the apical margin of each of the four basal segments, a narrow whitish fascia, broader on the first segment, the others slightly undulate and somewhat interrupted on the third segment, the posterior margin of each fascia is fringed with pale pubescence ; apical segment truncate, densely clothed with fuscous pubescence, with a transverse space of dense pale pubescence on its disk ; beneath fuscous, the sides of the segments rather densely clothed with pale pubescence, a spot on each side of the second segment, and a continuous band on the third, atte- nuated in the middle posteriorly, whitish. Length 4 — i? lines; ex- panse of wings 7 — 8 \ lines. Collection. — Ent. Soc. Philad. Four specimens. 1865.] 183 Genus PASITES. Latr. Pasites pilipes, n. sp. Chestnut-brown, polished ; sides of face, clypeus, collar, tubercles, two spots on pleura, postscutellum, and narrow bands on abdomen, white; hind legs of 9 densely pilose; wings hyaline, costo-apical margin fuscous. Female. — Chestnut-brown, polished, clothed with pale pubescence ; face flat, highly polished, impunctured; sides of the face obscurely, and the clypeus, whitish; cheeks and labrum densely pubescent; antennae piceous, paler at base. Thorax indistinctly punctured, pleura and me- tathorax rather densely clothed with silvery-white pubescence ; a line on the collar, tubercles, two spots on pleura, two small spots on scutel- lum. and the postscutellum, white; scutellum slightly subbilobate; tegulse brown, the outer margins pale. Wings hyaline, faintly tinged with fuscous, slightly iridescent, the costo-apical margin broadly fuscous. ] egs chestnut-brown, clothed with pale pubescence, which is long and dense on the posterior tibiae and tarsi ; posterior coxae dilated and flat- tened, with a whitish spot at tip. Abdomen broadly ovate, convex, polished, rather densely clothed with short pale pubescence on the sides and apex; on the middle of the first, second, fourth and fifth segments above, a narrow, rather uneven, whitish fascia, that on the fourth seg- ment interrupted on the middle ; on each extreme side of the third segment a short, narrow, whitish line; apical segment truncate, densely clothed with fuscous pubescence; beneath chestnut-brown, immaculate. Length Si lines; expanse of wings 62 lines. Male. — Resembles the female, except that the abdomen is longer, not so broad, and pointed at tip as in the males of Noma da; the posterior legs are not densely pilose as in the $ . Length 3 lines ; expanse of wings 5J lines. Collection. — Ent. Soc. Philad. Two specimens. This species has much the general appearance of a Nomada, and in in the % specimen, the only difference I can see is, that the anterior wings have only two submarginal cells, instead of three; but in the 9 • the form is more robust, and the hind legs are densely pilose, which is never the case in the females of Nomada. Genus EPEOLUS. Latr. Epeolus Wilsoni, n. sp. Black; face, cheeks, collar, posterior margin of mesothorax, two lines on its disk anteriorly, angular mark on pleura, most of metathorax, large indented mark on each side of first abdominal segment and bands on the other segments interrupted on the disk, yellowish; wings fusco-hyaline ; tibiae, tarsi and apex of abdomen dull fulvous. Male. — Velvety-black; frontal orbits, clypeus, labrum and mandibles. 184 [January dull ferruginous; face and cheeks densely clothed with short, appressed. yellowish pubescence, on the vertex and occiput it is thin and erect ; antennae piceous, the three basal joints dull rufous. Thorax finely and closely punctured ; a line on the collar extending on each side on the pleura, covering the tubercles, then running down for a short distance and then curving across to near the base of the middle coxae, two short lines on the anterior middle of the mesothorax, and its posterior margin extending on each side over the tegulae, clothed with short yellowish pubescence ; in front of the tegulae there is a patch of short yellowish- fuscous pubescence, continued from the yellow line behind ; scutellum black, its posterior margin obtusely emarginate, and the lateral teeth well developed and subacute, the anterior and posterior margin clothed with short yellowish pubescence, as well as the whole of the postscutel- lum, which has a tuft of long dense yellowish pubescence on each ex- treme side ; metathorax with a large oblique mark of dense yellowish pubescence on each side, deeply emarginate on the outside and behind ; thorax beneath densely clothed with an appressed silvery-ochraceous pubescence, which also more or less covers the coxae and femora be- neath ; tegulae dull ferruginous. Wings uniform fusco- hyaline, tinged with yellowish, the apical margins much darker; uervures fusco-ferru- ginous. Legs piceous. shining; the tibiae and tarsi dull fulvous, clothed with short golden-yellow pubescence. Abdomen oblong-ovate, deep velvety-black ; on each side of the basal segmeut a large bright yellow mark, deeply indented on the middle within, and dilated on the lateral apical margin ; remaining segments with an apical yellow fascia inter- rupted on the middle, the fasciae on the fifth and sixth segments are nearly obsolete; two last segments dull ferruginous; terminal segment pubescent, obtusely pointed and depressed at tip, with two diverging carinas on the disk ; beneath piceous, stained with obscure rufous, shining; apical margins of the three basal segments more or less clothed with very fine silvery-ochraceous pubescence, the remaining segments dull ferruginous, their apical margins densely fringed with deep golden- yellow pubescence. Length 7 lines; expanse of wings 13 lines. Collection. — Ent. Soc. Philacl. One specimen. [ dedicate this superb species to Dr. Thomas B. Wilson, to whom I am greatly indebted for the invaluable assistance he has rendered me in the study of Entomology. 1865.] 185 Epeolus vicinus, n. sp. Velvety-black; face, collar, most of pleura, two lines on anterior middle of mesothorax, its lateral and posterior margins, posterior margin of scutellum, postscutellum, lateral marks on metathorax and bands on abdomen interrupted in the middle, yellow; mouth, base of antennae, tegulse and legs, ferruginous; wings subhyaline. £ 9 • — Very similar to the preceding species, but is much smaller aud more robust in proportion to the size, and differs in color and mark- ings as follows: — The head is entirely black, except the labrum and mandibles, which are ferruginous; the two short lines on the anterior middle of the mesothorax and its posterior margin are much broader; the mark on the pleura is much the same in the 9 and is confluent be- neath with the silvery-ochraceous pubescence which covers the under surface, thereby leaving a large rounded black spot on each side of the pleura ; in the % this black spot is indistinct, being almost entirely covered by the silvery-ochraceous pubescence ; the lateral marks on the metathorax are shaped the same, but not so distinctly de- fined; the wings are much clearer; the legs, including the coxas, are entirely ferruginous ; the first segment of the abdomen has its basal, apical and lateral margins rather broadly yellowish, the two former are interrupted on the middle, especially the apical margin ; the fascia on the second segment is much dilated on each extreme side, nearly reach- ing the base of the segment; the fasciae on the remaining segments are very slightly or not at all interrupted on the middle; in the 9 the fifth segment is depressed, subrugose and fuscous on the disk, truncate at tip, and has a subtriangular yellowish mark on each side. Length 5-] lines ; expanse of wings 9 lines. Collection. — -Ent. Soc. Philad. Two 9 , one % , specimens. Epeolus pulchellus. n. sp. Black : face, collar, spot on anterior middle of mesothorax, a spot on each side before the scutellum, most of pleura, postscutellum, sides of metathorax and broad marks on each side of abdomen above, bright yellow ; wings subhy- aline, fuscous towards the tips; antennae, mouth, tegular, legs, and apex of venter, ferruginous. Male. — Robust, deep velvety-black ; the face about the insertion of the antennae, densely clothed with short, appressed, golden-yellow pu- bescence ; labrum and mandibles obscure ferruginous. Thorax coarsely rugose; collar, a rounded spot on the anterior middle of the mesotho- rax, faintly divided by the finely impressed central line, a rather large transverse mark on each side in front of the scutellum, lateral posterior margin of the scutellum and the postscutellum, deep yellow ; pleura marked as in the 9 of E- vicinus ; scutellum rugose, its posterior mar- 186 [January gin very slightly emarginate and the lateral teeth short and obtuse; on each extreme side of the postscutellum a tuft of yellowish pubescence; metathorax with a deep yellowish mark on each side deeply emarginate on the outside ; tegulse dull ferruginous. Wings fusco-hyaline, fuscous at tips, subhyaline at base, with a brassy-gloss especially towards the apex ; nervures fusco-ferruginous. Legs, including the coxae, entirely pale ferruginous. Abdomen ovate, robust, deep black ; on each side of the first segment a large, somewhat irregular, semicircular, bright yel- low mark, rounded before and nearly meeting on the posterior middle; on each side of the two following segments a broad, transverse yellow band, largest on the second segment, with the anterior margin slightly concave ; on the fourth segment a small cuneiform yellow mark pointed outwardly; on the fifth segment three small, approximate, yellowish spots; remaining segments obscure fuscous, pubescent, immaculate, the apical segment obtusely pointed and depressed ; beneath piceous, clothed with pale sericeous pubescence, the four apical segments yel- lowish-ferruginous. Length 4y lines; expanse of wings 8 lines. Collection. — Dr. J. Gundlach. One specimen. Genus CCELIOXYS, Latr. Coelioxys Uhlerii, n. sp. Coelioxys rufipes, Cresson, Proc. Ent. Soc. Philad. ii, p. 407 $. Collect inn. — Ent. Soc. Philad. One specimen. Mr. P. R. Uhler. This fine species, which I mistook for C. rufipes Guer., differs from that species by the much larger size (nearly three lines longer), the more distinct markings, and the different shape of the anal plates of the abdomen, those of rufipes answering to the description given by (xuerin of his 9 specimen from Mexico. (See Proc. Ent. Soc. Philad. ii, p. 408.) The basal segment of the abdomen of rufipes is always more or less rufous, while in Uhlerii it is black. Coelioxys rufipes, Guer. Coelioxys rufipes, Guer. Icon. Reg. Anim. iii, p. 452, pi. 73, fig. 9 ; LaSagra*s Hist. Cuba, Ins. p. 778. Collection. — Ent. Soc. Philad. Two 9 , one % , specimens. Prof. Poey informs me that " the Coelioxys retire for the night, many in company, upon the Escoba amarga (Parthenium hysterophorus, L.) M. Guerin describes and figures (LaSagra's Hist. Cuba, Ins. p. 779, pi. 19, fig. 11,) Coelioxys abdominalis as being found in the vicinity of Havana, as well as on the Island of St. Thomas, but Prof. Poey informs me that neither Dr. Gundlach or himself, after forty years of research in the Island of Cuba have ever fouud it. 1865.] 187 Coelioxys producta, n. sp. Black, polished, varied with white pubescence; wings fuliginous, subviola- ceous, hyaline at base ; legs dull rufous. Female. — Deep black, polished ; head rather closely and deeply punctured, the punctures very sparse on the vertex and between the antennae, thinly clothed with short pale pubescence, that on the cheeks dense and silvery; face depressed on each side ; occiput fringed with whitish pubescence ; antennae piceous-black. Thorax deeply and rather closely punctured, the rnesothorax sparsely puuctured especially on the disk; lateral anterior margin of the mesothorax, the anterior and pos- terior margins of the pleura, a spot on the tegulae, and two spots in front of the scutellum, of dense white pubescence; scutellum flattened, the disk impunctured, the posterior margin sharp, the middle produced, obtusely pointed and slightly recurved, the lateral teeth long, slightly diverging, with the point obtuse and slightly bent downward and in- ward ; metathorax clothed, especially on the sides, with long whitish pubescence; tegulae black, smooth and polished. Wings with their basal half hyaline, the remainder fuliginous, especially the costal and apical margins, and with a slight violaceous reflection ; nervures black. Legs, excepting the coxae, dark rufous, punctured, clothed with whit- ish pubescence, which is dense on the femora and tibiae beneath. Ab- domen elongate, conical, polished, deeply and rather closely punctured on the sides, especially the basal segment, very sparse and scattered on the disk ; sides of the second and three following segments with the anterior half much depressed, leaving the posterior half elevated and sparsely punctured; apical margins of the first five segments fringed with silvery-white pubescence, very narrow on the middle and gradu- ally broader on the sides; apical segment rather long, sublanceolate, finely punctured, polished, the apical third depressed, coarsely sculp- tured, rather suddenly narrowed, with the apex rounded and obtuse; venter deeply and sparsely punctured, the apex more closely punctured, the inferior plate slightly longer than the superior, sublanceolate, rather suddenly narrowed towards the tip which is emarginate on each side, making the extreme tip subacutely pointed with a small subacute angle on each side of it. Length 6 lines ; expanse of wings 10 lines. Collection. — Ent. Soc. Philad. One specimen. Larger than G rufipes, from which it is at once separated by the more sparse punctation, the nearly smooth mesothorax, the different shape of the anal plates of the abdomen and the different coloring of the wings. 188 [January Genus MELISSA, Smith. Melissa rufipes. Perty. Crocisa rufipes. Perty, Del. An. Art. p. 149, pi. 28, fig. 10. Mesocheira azurea, St. Farg. et Serv. Encycl. Meth. x. p. 106. Mesoplia azurea, St. Farg. Hym. ii, p. 280. Melissa rufipes. Smith, Brit. Mus. Cat. ii, p. 280. Collection. — Ent. Soc. Philad. Two ( % 9 I) specimens. Prof. Poey informs me that this species " retires to a bush to sleep ; it seizes a branch with its mandibles and places itself in a horizontal position, the back turned towards the ground." Genus MELISSODES. Latr. Melissodes Lanierii, Guer. Macrocera Lanierii Guer. Icon. Reg. Anim. iii, p. 455, pi. 74, fig. 7; LaSagra's Hist. Cuba, Ins. p 780. Collection. — Ent. Soc. Philad. £; Dr. J. G-undlach, $. One 9. live % specimens. Melissodes maura. n. sp. Entirely deep black; abdomen shining, nearly naked: wings tinged with fuscous. Female. — Robust, deep black ; head, thorax and base of abdomen clothed with rather short, dense, black pubescence ; very finely and closely punctured ; clypeus covered with dense, deep punctures, the anterior margin truncate or very slightly concave ; antennae black, the flagellum testaceous-brown beneath. Thorax : the punctures on the disk of the mesothorax and metathorax rather sparse and scat- tered; tegulas piceous. Wings pale fusco-hyaline, with a very faint violaceous reflection, the apical margins darker ; nervures blackish ; the first recurrent nervure received by the second submarginal cell be- yond its middle, the second recurrent nervure received at the tip of the third submarginal cell, which is as long as the first and rather suddenly constricted towards the marginal cell. Legs black or piceous-black. rather densely clothed with black pubescence, especially on the tibiae and basal joint of the tarsi, much longer and more dense on the poste- rior pair; tips of tarsi piceous. Abdomen broad, subconvex, shining, very closely and minutely punctured, the apical margins of the seg- ments smooth and polished; basal segment, the basal margins of the other segments, the extreme sides and apex of the abdomen clothed with black pubescence, very short and thin on the basal margins of the second and following segments and much longer and more dense on the basal segment; apical segment depressed on the disk, the tip slightly notched ; venter deep black, densely punctured, the apical margins of 1865.] 189 the segments with a dense fringe of black pubescence. Length 6 lines; expanse of wings 10 lines. Collection. — Ent. Soc. Philad. One specimen. Melissodes pullata, n. sp. Black, more or less tinged with fuscous, especially in % ; hind legs of J densely clothed with fuscous pubescence; abdomen shining; wings subhj'aline ; clypens and labrum of % pale testaceous. Female — Black; head and thorax densely clothed with black pube- scence, slightly tinged with fuscous, finely and closely punctured ; cly- peus very densely punctured, the apical margin truncate or slightly concave ; mandibles fringed beneath with long fuscous pubescence ; antennae black, brownish beneath. Thorax : mesothorax sparsely punc- tured, especially on the disk; tegulae shining black. Wings uniformly tinged with pale fuscous, with a faint metallic reflection; nervures fus- cous, arranged as in the preceding species. Legs piceous-black, clothed with blackish pubescence, very long and dense on the posterior pair; tips of tarsi rufo-piceous. Abdomen subdepressed, piceous-black. shining, minutely punctured ; basal segment, the lateral middle of the second, third and fourth segments and the two apical segments, clothed with rather dense, dark fuscous pubescence; beneath piceous-black, the apical margins of the segments with a fringe of dense dark fuscous pubescence. Length 5 lines; expanse of wings 8 lines. Male. — Resembles the female, except that the pubescence is entirely dark fuscous, and more sparse on the abdomen and legs ; the clypeus and labrum are yellowish-testaceous, with a dusky spot on each side at base of the former ; the antennae are broken off' near the base. Collection. — Ent. Soc. Philad. 9 ; Dr. J. Gundlach % . Two ? . one £ , specimens. Much less robust than M. maura, with the color more or less tinged with fuscous, and not deep black as in that species. Genus ANTHOPHORA, Latr. Anthophora atrata, n. sp. Black, tinged with fuscous; most of clypeus and labrum, and scape of anten- nae beneath, white; wings subhyaline; legs rufo-fuscous at base; extreme sides of the abdomen more or less tufted with white pubescence. Male. — Black; head and thorax clothed with rather short, dense black pubescence, more or less tinged with fuscous in certain lights ; the clypeus except a black line on each side at base, a transverse mark above the clypeus, lower sides of the face, and the labrum except a black spot on each side at base, white ; clypeus large, prominent, sub- triangular, broadly truncate in front; labrum clothed with short pale 190 [January pubescence; mandibles piceous; antennas piceous, the flagellum brown beneath, the scape white beneath. Thorax black above, piceous be- neath, clothed with rather short, dense, blackish-fuscous pubescence; tegulae piceous, pubescent. Wings faintly tinged with pale fuscous ; nervures piceous. Legs piceous; the coxae, trochanters and femora rufo-piceous, sometimes rufo-testaceous, clothed with short, dark fuscous pubescence. Abdomen blackish-piceous, opaque, the apical margins of the segments paler; basal segment clothed with fuscous pubescence, slightly mixed with whitish on the extreme sides; remaining segments almost naked, having a very thin, short, fuscous pubescence ; extreme sides of the segments more or less tufted with whitish pubescence; be- neath shining, pale rufo-piceous. Length 5£ lines; expanse of wings 10} lines. Collection. — Ent. Soc. Philad. Two specimens. Genus XYLOCOPA, Latr. Xylocopa morio, Fabr. Apis morio, Fabr. Ent. Syst. ii, p. 315. 9- Xi/tocopa morio, Fabr. Syst. Piez. p. 338. Halid. Trans. Linn. Soc. xvii, p. 310. Xi/locopa cajennoz, St. Farg. Hyin. ii, p. 203, % . Guer. LaSagva's Hist. Cuba, Ins. p. 776. Xylocopa teredo, Guikling, Trans. Linn. Soc. xiv. p. 313, pi. 8, figs. 1 9 > 5 % ■ Westw. Nat, Libr. xxxviii, p. 268, pi. 21, fig. 1 %, 2 9 . Xylocopa cubozcola, Lucas, LaSagra's Hist. Cuba, Ins. p. 77ii. pi. 19, fig. 8. 9- Collection. — Ent. Soc. Philad. Nine 9 • nve & specimens. There seems to be much uncertainty as to the correct synonymy of this species. All the females before me are black, and all the males are fulvous or honey-yellow; both sexes answer to the description of the species which I have quoted above as synonymous with A", morio Fabr., and I have little doubt that they all belong to one and the same species, notwithstanding that Cruerin mentions both sexes of X. ca- j mix in his description of that species, which is probably an error. The females show plainly six dorsal segments to the abdomen, which i* naked above, with the extreme sides of the segments and the apical margin of the sixth segment fringed with black pubescence; while the male abdomen shows seven dorsal segments, the last two of which are densely clothed with rather long, deep yellowish-ferruginous pubescence, as well as the two basal segments where the pubescence is much shorter, and the seventh segment has on each side of the middle a dense tuft of long fuscous pubescence. Length % 9 9 — 10 lines. 1865.] 191 Genus EXOMALOPSIS. Spin. Exomalopsis pulchella, n. sp. Black, polished, clothed with pale glittering pubescence ; sides of the first segment of abdomen, an oblique line on each side of second, basal margins of third and fourth and the whole of fifth segments, silvery-white; wings hyaline, fuscous at tips; hind legs of 9 with a dense scopa of long pubescence, the basal half pale, the apical half fuscous. Female. — Black, polished, strongly tinged with piceous; head feebly punctured; the vertex, occiput, cheeks and labrum, clothed with rather dense, pale, silky pubescence, that on the occiput and cheeks long; sides of the face with a patch of silvery-white pubescence ; clypeus flat, truncate in front; antennae piceous, the flagellum brown beneath. Thorax rather densely clothed with pale ochraceous pubescence, sparse and mixed with blackish on the disk of uiesothorax, long and dense on the scutellum, and silvery-white on the pleura beneath ; tegulae rufo- piceous. Wings hyaline, slightly iridescent, the apical margins pale fuscous ; nervures and stigma pale fuscous. Legs piceous, paler at base, clothed with silvery-white pubescence ; posterior tibife and basal joint of tarsi with a dense scopa of long pubescence, that on the tibiae whitish, tinged with ochraceous, silky, slightly mixed with fuscous at base, that on the basal joint of the tarsi fuscous, mixed with whitish beneath. Abdomen short, subglobose, smooth and polisbed ; base and sides of the first segment, an oblique line on each side of the second, a narrow fascia at the base of the third and fourth, slightly interrupted or attenuated on the middle, and the whole of the fifth segment, clothed with a dense silvery-white pubescence, most obvious in certain lights ; beneath rather densely clothed with short, pale glittering pubescence. Length 3.1 lines; expanse of wings GJ lines. Male. — Resembles the female, but not so robust, the pubescence more glittering, the face and clypeus densely clothed with silvery-white pu- bescence ; the pubescence of the hind legs is colored as in the female, but not half so long; the abdomen is not so broad, more pointed at tip, and not so smooth ; the fasciae on the third and three following seg- ments are distinct, while the oblique line on each side of the second segment is obsolete; venter naked, sericeous. Length 3 lines; expanse of wings 6 lines. Collect ion.--Ent. Soc. Philad. Three ? , one S , specimens. Exomalopsis similis, n. sp. Piceous, clothed with pale ochraceous pubescence ; sides of the face, pleura, and markings of abdomen similar to E. pulchella, whitish ; wings hyaline, tinged with pale fuscous at tips; scopa of hind legs entirely pale ochraceous. Female. — Piceous, more or less tinged with brownish; head and 192 [January thorax as in E. pulchella, but more distinctly punctured, not so shining. .Hid the pubescence less glittering'; on the scutellum and postscutellum the pubescence is dense and rather long. Wings hyaline, the tips faintly tinged with pale fuscous; nervures fuscous, the stigma testace- ous. Legs brown, paler at base, the pubescence pale glittering ochra- ceous; the posterior pair with the scopa long, dense and entirely silky uchraceous. Abdomen strongly tinged with brownish, broadly ovate, subdepressed, feebly punctured, shining, apical margins of the segments pale brownish; markings similar to those of E. pulchella, but less dis- tinct and not so glittering; the apical segment is clothed with pale ochraceous pubescence, as well as the venter. Length 31 lines; ex- panse of wings G] lines. Collection. — Ent. Soc. Philad. One specimen. Distinguished at once from E. pulchella 9 , by the scopa of the hind legs being entirely ochraceous. Exomalopsis pubescens, n. sp. Piceous, clothed with short ochraceous pubescence, closely and finely punc- tured; face densely clothed with pale glittering pubescence; wings subhyaline, iridescent; legs clothed with ochraceous pubescence; abdomen globose, the third and following segments with a fascia of dense ochraceous pubescence. Male. — Short, robust, piceous-brown, closely and finely punctured, clothed with a short, dense, ochraceous pubescence; face and clypeus with a dense, appressed, pale, glittering pubescence; antennae piceous at base (flagellum broken off). Thorax densely clothed with dark ochraceous pubescence, longer and somewhat whitish on the pleura be- neath; disk of mesothorax naked; tegulae yellowish-testaceous. Wings faintly tinged with pale fuscous, iridescent; nervures testaceous. Legs pale brownish, clothed with a rather dense ochraceous pubescence; tips of the tibiae and the tarsi yellowish. Abdomen short, globose, shining, closely, finely and distinctly punctured; base and sides of the first seg- ment, a slightly oblique line on each side of the second, and a fascia on each of the following segments, covering most of the segments and slightly interrupted on the middle of the third segment, of short, dense, appressed, pale ochraceous pubescence, glittering in certain lights; be- neath pale testaceous, shining. Length 2§ lines; expanse of wings 5 lines. Collection. — Dr. J. Grundlach. One specimen. Smaller, and more distinctly punctured and pubescent than the pre- ceding species, with the abdomen .short and globose. 1865.] 193 Genus CENTRIS, Fabr. Centris versicolor, Fabr. Apis versicolor, Fabr. Ent. Syst. ii, p. 340, £> • Centris versicolor, Fabr. Syst. Piez. p. 359. St. Farg. Hym. ii. p. 154. Hemisia versicolor, Klug. Ulig. Mag. vi, p. 227. Centris tabaniformis, Fabr. Syst. Piez. p. 358, % . Centris decolorata, St. Farg. Hym. ii, p. 160, % . Collection. — Eat. Soc. Philad. Two Page Mutilla Wilsoni 112 Methoca Poeyi 113 Scoliadae. Myzine albopicta 114 apicalis 117 lateralis 115 nitida 113 striata 116 Tiphia argentipes 117 Seolia atrata 118 fulvohirta 119 micans 118 trifasciata 118 Pompilidae. Pompilus anceps 130 bellus 124 compressiventris 127 coneinnus 122 coruscus 128 elegans 126 fulgidus 131 Gundlachii 122 ignipennis 121 juxtus 128 maeer 125 nubeculatus 123 orbitalis 131 pulchellus 126 purpuripennis 130 subargenteus 129 terminatus 128 uniformis 125 violaceipes 129 Planiceps collaris 132 Ceropales clypeatus 133 cubensis 132 Pepsis ignicornis 134 marginata 133 ornata 133 ruficornis 134 speciosa 195 Sphegidae. Ammophila apicalis 134 Pelopoeus annulatus 135 argentifrons 136 assimilis; 195 cementarius 134 lunatus 134 Podium fulvipes 136 rfphex aurifluus 137 Page Sphex aurulenta 137 flavipunctata 1 34 fiavomaculata 134 Lanieri 137 ornata 137 Priononyx Thomse 137 Larridae. Larrada fuliginosa 137 fulviventris 137 ignipennis 137 trifasciata 138 vinulenta 138 Tachytes cubensis 137 insularis 140 Astata insularis 140 Bembecidae. Bembex argentifrons 141 armata 142 Monedula dissecta 144 insularis 143 signata 143 Nyssonidae. Stizus Hogardii 145 Hogardia rufescens 145 Nysson armatus 145 Harpactus insularis 146 scitulus 147 Alyson aculeatus 148 Crabronidae. Trypoxylon excavatum 148 succinctum 149 Oxybelus analis 149 Crabro auriceps 150 claviventris 151 crcesus 152 cubensis 152 Psen argentifrons 152 Cerceris bilunata 155 festiva 156 flavocostalis 153 triangulata 154 zonata 156 Eumenidae. Zethus Poeyi n 57 rufinodus 157 Eumenes abdominalis 157 colona 157, 195 cubensis 157 ferrusrinea 158 200 [January Page Eumenes ornatus 196 Odynerus apicalis 161 brachygaster 196 bucuensis 164 cingulatus 162 consors 160 cubensis 161 dejectus 164 elegans 165 Enyo 165 incommodus 196 obliquus 163 Prcetus 159 simplicicornis 165 Vespidse. Polistes americanus 196 attenuatus 157 cajennensis 167 carnifex 165 chlorostoma 165 cubensis 165 fasciata 167 fulvo-fasciata 167 hectica 167 incertus 166 lineatus 165 major 165 minor 166 onerata 165 Poeyi 160 rufipennis 105 transversosignatus 165 valida 165 Vespa ochrosticta 167 Polybia attenuata 157 cubensis 167 phtbisica 167 Andrenidse. Colletes subrnarginata 107 Halictus Poeyi 168 Augochlora elegans 169 magnifica 170 parva 171 prseclara 169 Eegina 168 Agapostemon femoralis 171 festivus 172 Page Agapostemon Poeyi 173 semiviridis 172 Nomia Robinsoni 174 Apidse. Panurgus ? parvus 175 Megachile atrieeps 176 binotata 190 curta 178 maura 179 Poeyi 177 singularis 177 Ceratina cyaniventris 179 Nomada cubensis 180 flaviceps 181 tibialis 182 Pasites pilipes 183 Epeolus pulchellus 185 vicinus 185 Wilsoni 18:', Ctelioxys abdominal is 190 prod ucta 187 rufipes LS6 Ublerii t86 Melissa rufipes 188 Melissodes Lanierii 188 maura 188 pullata 189 Anthopbora atrata 189 versicolora 193 Xylocopa cajennoz 190 cubozcola 190 morio 190 teredo 190 Exomalopsis pubescens 192 pulcbella 191 similis 191 Centris ^Etbiops 193 apicalis 193 ? cornuta 194 decolorata 193 fulviventris 193 pcecila 193 tabaniformis 193 versicolor l ( -*3 Melipona fulvipes 195 Apis mellifica 195 1865.] 201 Description of certain species of DIURNAL LEPIDOPTERA found within the limits of the United States and British America. No. 4. BY WM. II. EDWARDS, Newburgh, N. Y. (Communicated December 12, 1864.) 1. Melit.ea picta, nov. sp. 4. Hesperia maculata, nov. sp. 2. Satyrus Ridingsii, nov. sp. 5. " viator, nov. sp. 3. Hesperia Napa, nov. sp. 6. " Ricara, nov. sp. 7. Lyc.ena rtjstica, nov. sp. Melit.ea picta, nov. sp. Male. Expands lyL inch. Upper side black with fulvous and whitish spots as in M. pratemis Behr. Under side of primaries mottled with pale yellow, black and fulvous : the apical third being yellow, interrupted by a black wedge-shaped spot from the costa, and terminated by a curved black bar that extends from the costa to the middle of the disk, and is there connected by a small spot to a large black patch upon the middle of the inner margin ; this last is edged without by yellow ; another black patch at the inner angle 'extends so as nearly to connect with the wedge-shaped spot; a faint yellow bar crosses the cell ; costa at base yellow ; rest of the disk bright fulvous. Secondaries same yellow with no markings except two small brown patches on hind margin, the one nearest anal angle distinct, the other nearly obsolete, two small spots on costa and one or two dots near the arc. Body above black, below yellow. From six specimens taken by Mr. Ridings in Nebraska Territory. This may be readily distinguished from allied species, by the yellow secondaries. Satyrus Ridingsii, nov. sp. Female. Expands 1 T 7 inch. Color grey brown ; both wings have a submarginal series of stripes or oval spots of soiled white, varying in shape iu individuals, sometimes connected so as to form a continuous band; within two of these spots on primaries are round black ocelli with minute white pupils ; no ocelli upon secondaries. Under side grey white mottled and streaked with fine brown spots and lines ; a broad dentated band of a darker shade crosses the disk of secondaries, edged without by whitish; a submarginal dentated line corresponds to the outer edge of the band on upper surface ; primaries have the spots and ocelli repeated; fringes alternate brown and grey. 202 [January From four females taken by Mr. Ridings at Burlington, Boulder Co., Colorado Territory. Hesperia Napa, nov. sp. (Plate I, fig. Ill % , IV 9 .) Male. Expands 1A inch. Upper side bright fulvous; primaries with a broad blackish margin, dentated within and excavated opposite the cell ; from this sinus a large blackish spot extends to the stigma. which is long, narrow, oblique and velvety black ; a few black scales at base and in costa above the stigma. Secondaries have the disk fulvous. Under side of both wings fulvous inclining to yellow; no marks upon secondaries; primaries have black patches at inner angle and at base, connected with this last is a black stripe corresponding to the stigma. Body brown above, yellow below ; thorax and palpi greyish yellow ; club fulvous below, tipped with brown. Female. 1 T 4 inch. Similar to the male ; the stigma replaced by a broad blackish spot; on the under side primaries have three small spots on the costa and two on the sinus of hind margin, and seconda- ries have a discal band, all of a more yellowish hue than the rest of the wing. Taken by Mr. Ridings at Empire City, Colorado Territory. Hespehia maoulata, nov. sp. (Plate I, fig. VI.) Female. Expands lf G inch. Upper side uniform dark brown ; pri- maries have three small round spots in a line from the costa, two of larger size on the disk and a third below these on the submedian. Secondaries have one minute spot in the disk ; all these spots are semi-transparent, yellowish. Under side nearly same shade as above; inner margin of primaries washed with yellowish; spots as above; secondaries have two small spots in the disk, separated only by the nervule, and a larger spot mid- way between these and the costa. Body black ; palpi yellowish. Taken at New Orleans by Mr. Norton. Hesperia viator, nov. sp. (Plate I, fig. V.) Male. Expands 1 T 5 inch. Upper side of primaries brown with a reddish tint ; a double yellow spot in the cell, and a row of spots across the wing, of which the two on the costa are minute, the third is exte- rior to the line and almost obsolete; the fourth small, oval; the fifth three times as large as the fourth and rectangular ; the sixth and sev- enth connected, triangular. 1865.] 203 Secondaries have broad brown margins, the whole disk yellow with a tint of fulvous, divided into spots by the nervules. Under side of primaries fuliginous upon inner margins, reddish brown on costa and apex; the spots repeated indistinctly ; on the arc a black line. Secondaries pale brown with the spots repeated indistinctly. Body above brown ; below grey ; palpi whitish ; club brown, tipped with fulvous. Female. Similar to the male, a little larger. From a male taken by Mr. Arthur Christie, in Northern Illinois. The female in my possession was sent by Mr. E. Norton from New Orleans. Hesperja Ricara, nov. sp. (Plate I, fig. II.) Male. Expands 1 inch. Upper side greyish brown ; primaries have a zigzag series of white spots, of which three are on the costa near apex, four below in a diagonal line that if protracted would strike the middle of the inner margin, and two below the last of these; discal arc white; a rectangular spot near it within the cell, over which are two fine lines on the costa ; two or three small spots near the base in an oblique line from the rectangular spot; fringes of both wings alternate black and white. Secondaries have a submarginal series of indistinct white spots, and a second of larger ones across the disk. Under side of primaries brown, dark in the disk, pale with a yellow green tint upon costal and hind margins; same spots as above. Secon- daries have a russet tint with two blackish rays from the base, one through the cell, the other along the inner margin ; spots as above, but dilated, and in addition, two or three next the base. Palpi grey; antennae black and white above, yellowish below; club ferruginous. From six specimens taken by Mr. Ridings at Empire City, Colorado Territory. This resembles H. Wyandot Edwards. I have followed the descrip- tion of that species so that the distinction between the two may be more readily observed. Lyc.ena rustica, nov. sp. Male. Expands 1 inch. Upper side silvery blue, as in Ssepiulus, with blackish hind margins which are broad on primaries, narrow on secondaries; a small discal spot upon each wing; secondaries have a marginal series of faint bluish ocelli; fringes long, white. 204 [January Under side of primaries yellowish grey; a marginal row of nearly obsolete spots, the lunules above which are more distinct; a curved median row of small, rounded, black spots, six or seven in number, the first, on the costa, sometimes wanting, the seventh, on inner margin, double; all edged with white; on the arc a reniform black spot, and a small double spot in the cell one-third the distance from the reniform to the base. Secondaries darker, with a blue tinge at base ; a marginal row of spots as on the primaries; a submarginal of large, whitish spots, as in Pheres, some of which have a few black scales in the centre ; these spots are connected so as to form a band ; on the outer half of the wing are three whitish spots, the two on costa with black centres ; another such spot on the costa near base, and one on abdominal margin. Body below white ; palpi white tipped with black ; antennae black annulated with white; club black above, ferruginous below. Female. Same size, black, lightly sprinkled with blue at the base. From two males, one female, taken at Pikes Peak by Mr. Ridings. Notes upon the variation of sexes in ARGYNNIS DIANA. BY H. W. BATES, Of London, England. (Communicated to Wm. EC. Edwards, Esq., in a letter dated Oct. 20, 1864) Nothing, for a long time, in the Entomological way, has so much interested me as your account of the capture of the female of Argynnis Diana and the inspection of the specimen which you sent enclosed in your letter. If such fine discoveries can still be made in North Ame- rica, it gives one a large idea of the field still open to the Entomologists of the United States. The contrast between the two sexes is wonder- fully great : a wide disparity between the sexes, however, is not abso- lutely new in the genus Argynnis. It is seen in the Argynnis Sagana of Northern China, whose male is of the ordinary fulvous color and re- sembles A. Laodice of Europe, but whose female is greenish brown with white macular belts and so peculiar in coloring that it has been described not only as a distinct species but as belonging to a new genus. by Nordmau, who called it Damora Paulina. Incipient sexual dispa- rity in colors is seen also in Argynnis Papliia of Europe, the females of which are sometimes very different from the males. This sexual variety, however, is local, and it has been figured as a distiuct species under the name of Argynnis Valesiana by Esper. 1865.] 205 The subject of divergence in secondary sexual characters in the sexes of species is of the highest interest; the phenomena are extremely va- ried and complicated and I know, have almost puzzled our great master himself, Mr. Darwin. Mr. Wallace and myself read with great care the excellent account given by Mr. Walsh in the Proceedings of the Entomological Society of Philadelphia (Vol. I, p. 349), of the variety Glaucus of Papilio Tarn us $ . Mr. Wallace is about to publish a philosophical memoir in the Linnsean Transactions, on the Papiliones of the Malay Archipelago, and will quote this article on Papilio Glau- cus. It is one of the most interesting and difficult cases of sexual vari- ation. Our Argynnis Paphia var. Valesiana, seems to form a parallel case, but none of our European Entomologists have worked out the geographical distribution as your Mr. Walsh has instructively done. My views on this subject are at present somewhat hazy, but such as they are I give you tbem as follows. I aaree with Mr. Darwin that the formation of a sexual distinction in colors, form, ornament, &c. can be explained only on the principle that he has applied to the origin of species. First, slight varieties arise peculiar to one sex ; if these slight peculiarities give their possessors any advantage in their life-career over their none-varying fraternity, they survive dangers to which these latter are exposed and so leave progeny when the others do not ; and this progeny by the laws of in- heritance tends in successive generations to become more and more true to the parental varietal type. Now the kinds of advantage pos- sessed by sexual varieties, I believe, are resolvable into two. The first (the only one mentioned by Darwin) is when the males possess orna- mental plumage or gift of song or strength of tusk and spur — as in Mammals and birds, which give the owners a superiority in competing for the favors of the female or in fighting with other males. The process of evolution of a striking male divergence, is the same as that which I have mentioned above ; namely, slight varieties arise, and the most advantageous ones survive and propagate their kind, whilst the others die childless and so on until the complete male beauty remains as a fixed form. The other kind of advantage, which has occurred to me as existing in nature, is that of the possession of some peculiar color or form or habit by one sex to enable it to escape dangers peculiar to itself owing to its haunts being somewhat different from those of the opposite sex. I believe the consideration of this will account for the strongly marked female divergencies which are so common in Butterflies. T doubt much whether a female variety is ever purely climatal, i. e. due 206 [January to the immediate action of heat, &c. on the individual ; when such a variety is geographical, I am inclined to think that it is so. because it has become adapted to some peculiarity in its surroundings which does not exist in other portions of the area of the species where the variety does not occur. It is thus that I would account for the Glaucus vari- ety of the female of Papilio Turnus and all similar cases. It is of course easy to ascertain whether it is the female or the male that has diverged from its type in any genus. When it is the male, the females retain the type common to the genus or group to which the species belong, and vice versa. Therefore in the cases of Argynnis Diana, Sagana, Paphia, Papilio Turnus, &c. it is the females which have been brought under the operation of natural selection In the case of Gallinaceous and Humming birds it is the males; the form of selection which has been at work here is called by .Mr. Darwin Sexual Selection. It is very interesting in Butterflies to study those genera which exhibit sexual divergence. In Tropical America there are many such. The genus Epicalia affords one of the best cases. A good series of species of this genus exhibits almost all stages of sexual divergence in a small compass. Epicalia Uyaniris and Ep. Capenaa scarcely differ in the two sexes; the male only having a little more color than his partner. In Eji. Ancra the male shines forth with a brilliant orange belt, denied to his mate, although the latter has a handsome blue belt as good as that of her husband. Further on Ep. Orsis shows a wide divergence, the female being striped with slaty blue and white, whilst the male is silky blue. Afterwards we come to the extreme forms of the genus Ep. Acontius, Ep. Nkimilius arid others. In these the females are nearly all similar to that of Ep. Orsix and to both sexes of Ep. Oyani- ris, but the males are so wonderfully different, not only in color but sometimes {Ep. Numilius) in form, that Entomologists bad always placed them in separate genera, until they were detected in copula. A similar gradation is observable in the Papiliones of the P. ^Eneas group. A great deal, however, remains to be done before this interesting subject can be placed in such a light as to become clear to every one. We require good cases where the course of variation and its incipient selection of one of the varieties may be seen iu process, such as that which I think I have detected in the Heliconidse, as illustrating the formation of mimetic forms, and described in the memoirs of which I sent you a copy. Then there is a mystery still to be cleared up in the inheritance of varieties by one sex and not by the other. These phenomena in domestic poultry require careful observation and expe- 1865.] 207 riment, before any light can be thrown upon them The peculiar con- ditions of life in portions of the areas of distribution of species which influence the formation of local sexual varieties also require to be stu- died. In the case of insects there is a further complication in the metamorphoses; for some imago varieties may have originated in the egg, larva or pupa state, and all this requires investigation. We are, in fact, only on the threshold of this most pregnant and interesting subject, and it would be a gain to science, if American Entomologists would take it up, for the North x\merican Fauna supplies endless ma- terial for the investigation. On the Synonymy of PAEATHYRIS ANGELICA. Grote. BY AUG. R. GROTE. (Communicated January 9, 1865.) On examining the figure of the South American Parathj/ris ccilo- nulli given by Cramer, I find that the species probably differs gene- rieally from our allied North American forms: P. torrefacta and P. An- gelica; I readily adopt then the generic term proposed for these by Dr. Packard. The South American genus is distinguished by the more elongate anterior wings, which are not truncate at the apices, and the propor- tionally more reduced secondaries; its habitus thus recalls certain Sphingidse, and compared with which our species, with their more similarly sized anterior and posterior wings, present a more geometri- form appearance. With myself, Dr. Packard has only seen the female of the second species, in which the lateral white abdominal pustulations are quite distinct, and of which I give the following synonymy : — APATELODES, Packard. Apatelodes Angelica. Grote. Parathyris Angelica, Grote, Proc. Ent. Soc. Philad., Vol. 3, p. 322, Plate 4, fig. 1. ?. (1864.) Apatelodes liyalino-puncta, Pack., Proc. Ent. Soc. Philad., Vol. 3, p. 354. (1864.) Ffnbltat. — Eastern and Middle States. (Coll. Ent. Soc. Philad.) This exquisite species is of apparently rarer occurrence than its con- gener — Apatelodes torrefacta. 208 [January Description of the imago and larva of a new species of CHRYSOPA. BY HENRY SHIMER. (Communicated January 9, 1865.) Chrysopa Illinoiensis, n. sp. Pale green, moderately pubescent ; dorsal stripe broad, very light prasinous ; sides verdigris-green, paler beneath. Head above, posteri- orly greenish-yellow, anteriorly and beneath pale yellow; a small black line in front of the eye; between the base of the antennae, the eye and the black line in front, a reddish-purple spot; mouth red. Eye in life, green with golden and other prismatic reflections, displaying in the sunlight a most beautiful play of changeable colors; eye in death, of a dark leaden hue. Antennae white, basal article with a very faint shade of green. Maxillary and labial palpi white, with a longitudinal black line on the exterior side of each ; upper segments pointed with fuligi- nous; a small black spot beneath the base of the maxillae. On the side of the prothorax anteriorly, a reddish-fuscous line, equal to that in front of the eye, and apparently in a right line with it through the centre of the eye. Legs greenish-white; tibiae and tarsi lightest, slightly clothed with a ferruginous pubescence, predominating on the tarsi and without close observation, appearing to give color to the tarsi; claws brownish. Wings hyaline, beautifully iridescent; nervures light greenish-white, with a deeper shade of greenish at the base and through the middle, clothed with short black hair, most numerous on the margins, alter- nating on the internal costa, each hair terminating in a fine point. Form slender. Wing almost twice the length of the body, apex some- what rounded, the very slight acumination slightly predominating in the posterior pair. Antenna? long, articvdations very numerous, basal article much swollen. Measurements. Length of body .33 to .45 inch. Alar expanse, 1.025 to 1.08 " Length of wing, .5 to 5.3 " Breadth of wing, .18 to .2 '• Whole length to tip of closed wings, .... .58 to .62 " Antennae, .35 to A " Hab. — Illinois. The foregoing description was taken from a large suite of living spe- cimens obtained from a field of corn, which had been sown very thick for fodder. The specimens were mostly taken either in the larva or pupa state, and matured. They were very numerous in the latter part 1865.] 200 of September, so much so that I feel safe in saying that there was one or more for every stalk of that thickly sown corn ; every stroke of the cutter would raise three or four dozen of them, presenting quite an in- teresting spectacle as they staggered along in their awkward, unsteady flight. In the evening twilight I observed more of them on the wing- voluntarily, than at other times. Jn this corn were millions of chinch- bugs (Lt/geeus leucopterus Say), every stalk being literally black with them ; this was a second general brood of the bugs ; the first almost matured in an oat and wheat-field near by, and migrated to the corn, where they paired and laid their eggs. On these young chinch-bugs I observed the larvae of the Ghrysopa to be feeding very voraciously. Of all the perfect insects then and there examined, I only found one of a different species (similar to Ch. pseudographa, but the segments each side have a red instead of a yellowish spot, and a red spot on each side of the face), and I caught and examined hundreds in the field with a view of determining that fact; as this was an isolated specimen taken in the perfect state, it is quite probable that no other than the species heretofore described were preying on the chinch-bugs. Larva. — Greenish-white, immaculate beneath; above, on each side of the dorsal line, three rather inconspicuous longitudinal rows of brown spots, these spots much more prominent on the thoracic segments; dor- sal line brown, narrow; bunches of short hair in the spots of the seg- ments of the body. Body swollen in the middle, tapering towards each end; tail quite acuminate, and used as an organ of locomotion, it being able to sustain its entire weight by the tail, even on glass. Head armed with long projecting mandibles; palpi two-thirds as long as the mandi- bles; antennae longer; length at rest, about .5 inch., extending consi- derably when in motion. When alarmed by disturbance, it allows itself to fall, and remains motionless for some minutes ; the body in the meantime is slightly curved, the tail is drawn under, the head is bowed forward on the breast, and the legs are contracted. Sept. 11, 18G4. — I placed one of the larvse into a vial, after having captured it in the field in the very act of devouring chinch-bugs of all sizes, but they had hardly reached the bottom before it seized one of the largest ones, pierced it with its long mandibles, held it almost mo- tionless for about a minute while it was sucking the juices from the body of its victim, it then threw down the lifeless shell ; in this way I saw it destroy, in quick succession, about a dozen bugs; towards the last, as its appetite was becoming satiated, it spent five or more minutes 210 [February in sucking the juices from the body of one bug ; after this bountiful repast, it remained motionless for an hour or more, as if asleep. Never, for a single moment, during the feast, did it pause in the work ; when not in possession of a bug, it was on the search for, or in the pursuit of others; it manifested much eagerness in the pursuit of its prey, yet not with a lion-like boldness, for, on several occasions, I observed a manifest timorousness, a halting in the attack, as if conscious of danger in its hunting expeditions, although here there was none. Sometimes, when two or more bugs were approaching rapidly, it would shrink back from the attack, and turning aside, go in the pursuit of others. At length, awakening, it would renew the assault as before. On one occasion. when it was on the side of the vial, two inches up, with a large bug in its mouth, I jarred the vial so that it fell to the bottom, and rolled over and over across the bottom, but holding on to its prey, it regained its footing and mounted up to its former position. Occasionally the chinch- bugs would hasten to escape when pursued, as if in some degree con- scious of danger. Sept. 12th — Evening. — I observed the Chrysopa in an angle formed by some paper at the bottom of the vial, spinning a very attenuated web. It has just commenced the work, having thrown out some of the outer stays as a support for the intended cocoon; its body is curved in the form of a semicircle, its head drawn inward toward the breast; fixed in this position it is spinning with its very pliant tail, thrusting it out in all directions, bending it as freely and gracefully as the trunk of an elephant, but with great rapidity. This is certainly a very beautiful sight to behold, so frail a creature constructing with such unerring and mathematical precision, its temporary grave, and very naturally suggests the thought, has it any idea of its future resurrection in newness of life ? Upon accidentally jarring the vial it remains motionless for the space of ten minutes or more, now, if possible, more cautious than ever before, still true to its former nature, depending upon playing the "possum" for safety. At length it commences very slowly and cautiously to con- tinue spinning its web, and now apparently feeling safe from danger, it works rapidly as before, occasionally shifting half way around in the direction of its head by a quick jerk; in this way its very flexible tail has access to every part of its cocoon. During my entire observation of several hours, it holds its body in the same plane — the plane in which it was curved when I saw it commencing its work, and doubtless remained in this position within the cocoon. Sept. 13th — Morning. — The outer visible work is completed; in the 1865.] 211 centre of the thinly scattered outer fibres it has formed a closely-woven, subspherical cocoon, very smooth exteriorly, of a light gray color, about the size of a No. 1 shot, slightly prolate-spheroidal. This specimen had only four legs in the larva stute, the anterior and middle legs of the dextral side were wanting, probably lost by accident. Greatest diame- ter of cocoon .16 inch., least .125 inch. These measures were taken from several pupae gathered from the field. Oct. llth. — The imago has appeared with all six legs complete; those wanting in the larva are of full size and perfect with the others, making about one month in completing the transformation. The subimago escapes from the cocoon by opening a lid at one end, and in all the specimens which I bred — about two dozen — I observed a very thin transparent pellicle near by, so light that it may be readily blown away by the slightest breath of air. The perfect insects, on an average, lived about ten days in confinement without food. Nov. 29th. 30th and Dec. 1st. — I saw a number of this and other species of Chrysopa voluntarily flying, the weather being quite warm, so much so that the ground, which, during the severe cold weather of the past three weeks, was frozen to the depth of eight inches, has en- tirely thawed out, so that ploughs are running. It is probable that the perfect insects survived that cold weather, and if so, they may live during the winter, in which case the farmer has much to hope from this insect in suppressing the ravages of the chinch-bug, that of all in- sects the most injurious to the agriculturist in this region at the present time, and at all events we hope that many will pass the winter in the pupa state, as I have some in that condition in my breeding boxes, although most of them matured. Judging from what I observed during the past summer, we have good grounds to hope that ere long it may prove one of the most effective means of exterminating the chinch- bus:, in connection with other insects that I observed to feed on them also at the same time. In some specimens the middle of the thorax and top of the head are much inclined to light yellow, in others creta- ceous; in the very young imago the top of the head is light green, and the posterior part of the abdomen appears of a cloudy dark color fr.'im being semitransparent, showing partially the contents of the intestines. In some specimens I find the anterior lateral spot of the prothorax very faintly visible or entirely wanting, in others blackish ; all of which in other respects coincide with the typical specimens, and probably are identical. I observe one or two among my dried specimens having a faint reddish spot on the side of the neck; if it is not this species, per- 212 [February haps it is Oh. Harrisii. Generally, in the dried specimens the face and dorsum are much more yellowish instead of light green, the anterior lateral prothoracic spots are not so conspicuous ; antennae very slightly darkened, especially towards the points, and the tarsi have become somewhat, but not very conspicuously, darker than the rest of the legs- Comparisons. — This species almost agrees with Chrysopa rufilabris and Harrisii, but differs in having no black nervures or rufous occipital points, in having the antennae uniformly white in life, and the nervures all fimbriated with black. Differs from Oh. plorabundd in not having a yellow dorsal stripe or yellow pointed anteunas in life, in having the anterior wings, as well as the posterior, a little acuminate, in the larger size and the brownish feet and ungues. It differs from Oh. pseudo- °f the numberless shades of variation, incidental to locality, climatal influence, and perhaps other causes, of which we are ignorant. The variations may be divided into those of size, and ornamentation. In regard to size, I have specimens varying from 1.75 — 2.66 inches; and I have noticed, that very generally, there is a tendency to increased size in the South and West. The females are usually the largest, though I have caught males in the western parts of Pennsylvania and New York, fully equalling in 1865.] 2 19 expanse, any of the former; — on the other hand, the least that I have ever collected, were females, taken in the vicinity of Philadelphia. Ornamentation affords a much greater range of variability. Consid- ering the male first, some of the most striking peculiarities upon the upper surface, are manifested in the black margin ; this is exceedingly subject to variation; in some specimens being very wide, in others, narrowing to the width of a line : nor is this always in accordance with the size of the insect. Sometimes, it is perfectly traversed by yellow veins ; in some, all these are commenced, proceeding but part way; in others, they are found near the apex only, and frequently, not at all. Another great point of difference, is in the manner in which this border is super-imposed upon the yellow ground color. It is usually crenated within ; rarely parallel with the margin ; the curves varying through all possible degrees of length and depth ; sometimes there are a few prominent projections, and the rest of the outline sinks into a common level. The degree of prolongation upon the inner margin, varies consider- ably ; sometimes terminating abruptly at the inner angle ; sometimes rising a short distance on the margin, and very rarely, to two-thirds its length. This last extreme, I have seen in but one specimen, (N) taken at Schooley's Mountain, N. J. The discoidal point of the primaries ranges from a narrow black line, to a large oval spot, and in one specimen, now in the Cabinet of the Society, taken in this city by Mr. James Ridings, it is prolonged out- wardly in the form of a sagittate dash, connected with the border by an interrupted line. The secondaries usually present but little change, except conjointly with the primaries, in the quantity of black basal atoms, but one spe- cimen (E. of my Cabinet) which I took last summer at Harrisburg, has the abdominal margin strongly powdered with black scales. The discoidal spots vary from almost total obsolescence, to a very vivid orange, frequently geminate. A specimen, (K) caught near this city, in the summer of 1863, dif- fers so much from the others, that I shall describe it more fully. The insect ( £ ) is of small size — expanse 1.85 inches ; bright yellow. The black margin of the primaries is prolonged up the veins, forming very deep scallops, and contains a transverse line of four sub-quadrate spots, near the apex. On the secondaries, the border is very narrow and indistinct, scarcely extending to the middle of the margin. Cilias on the apex of the primaries, and anal angle, very pale roseate, else- 220 [March where, whitish. Below, the sub-marginal spots are obsolete upon the fore wings, and nearly so upon the secondaries ; but one silver discoidal spot upon the latter, broadly encircled with ferruginous. A female (L) to be described hereafter, was taken at the same time, in coitu. Underneath there are variations in the size and number of the dis- coidal spots, and of the containing irises, and in the complete presence or incomplete nullity of the sub-marginal ferruginous spots, varying also in size. Specimen E. mentioned above, has the discal spot of the primaries pupilled with white, which is not. however, peculiar, though I have seen none containing so large a spot ; and the under side of the secondaries thickly covered with greenish black scales. Two silver discoidal spots. very large and prominent; the sub-marginal spots not very distinct, but more so upon the primaries. In the color of the cilije there exists considerable variation, ranging from roseate to yellowish-white ; the first being more especially marked at the extremities — apical and anal. There is ever, but little change in the yellow color of the male, but in the female we find all shades from a soiled white to an intense yellow. The black margin of the female, in itself, does not vary so much as in the male, as its width is generally about the same, but much more so in regard to the contained spots. We find these of all sizes, from a mere atom to as large as a pea; all shapes, quadrate, sagittate, and ovate; and numbering from three to seven. Sometimes they are con- fluent, forming larger introduced spaces, and sometimes widely sepa- rated. There is generally a transverse row of 3 — 5 near the apex, and two in the lower part of the border, one of which, and sometimes both are obsolete. The marginal band never extends inwardly upon tin- inner margin as far as in the male, and in a specimen from Brazil (?) is cut off, just below the first median nervule. It is much more triangular at the apex, and in consequence extends much farther upon the costa, which together with the base, is always powdered with black atoms, generally densely. The discoidal points are generally larger than in the male, and some- times nearly round, though more usually ovate. Secondaries commonly have the extremities of the apical nervules lined with black; the black border, though wider, is not usually so long as in the male, and generally contains in its upper part, two or three spots of the ground color, usually more or less imperfect, and sometimes obsolete. I have a specimen (S) from Mass., in which this 1865.] 221 border is denoted solely by a narrow black line, and anotber (R) in which the border is composed of black spots, placed at the extremities of the veins. There are usually two orange discoidal spots upon the secondaries, of which the outer is the least, but in this instance there is but one. The secondaries are also frequently powdered with black atoms, sometimes quite densely, but more especially in the white 9 ■ On the under side there is but little variation, save in the size of the discoidal spots. The silvery pupil has an extreme range of variation, usually geminate, sometimes singular. Other points liable to change, have been enumerated under the phases of the male. Ciliae vary in color from pale roseate to dark reddish-brown. Mr. J. A. Lintner says, in Proc. Ent. Society, Vol. Ill, p. 55, " I have in my collection, one in which the black border of the primaries is without the spots which characterize the 9 , an d one in which the secondaries have on their inferior surface but a single discoidal sil- vered spot." I have two remarkable types of variation to describe, of which the first, (F) if it were not for the venation and shape of the wings, would have to be considered a lightly-colored specimen of M. Csesom'a. The black atoms at the base extend far down the wing, and the border is thrown into such a form as to present the strongest possible resemblance to the " Dog's Head," so well marked in Csesonia and Euryrfice.. Below, the primaries are destitute of the sub-marginal spots, of which there is a slight trace on the secondaries ; the two wings agreeing ex- actly in color. The discal spots are very large on both wings; on the primaries, black, not pupilled ; on the secondaries, silvery, surrounded by a narrow ferruginous line, outside of which there is a small reddish- brown dot. Cilias are entirely bright rose-colored. This insect was captured at Harrisburg. Variety No. 2, is the female of specimen (K) described on a preced- ing page. It is of rather less size ; of a soiled white ; agrees in markings with the male, with these additions on the upper surface; that the discal spot of the primaries is pupilled with white ; that there is a small black dot situated above the medio-central nervule. within the marginal curve ; and that the ciliae are reddish-brown. In forming these notes I have had about seventy specimens before me. and as will be seen by the following list, from a great number of localities. Hah — Philadelphia, Harrisburg, Williamsport, Elmira, Niagara, Harrer's Ferry, Chambersburg, Cincinnati, Peoria, Rocky Mountains, 222 [April Virginia, Wilmington, Trenton, Schooley's Mt., (N. J ), New York. .Massachusetts, Maine, Canada, Brazil (In my collection.) I am certain that the Brazilian specimen is authentic ; it differs somewhat from our types, yet having but one, I deemed it more advi- sable to place it, temporarily, under this species, until I could receive more specimens, and then definitely ascertain its position. Description of a new species of CITHERONIA. and Remarks on ANISOTA RUBICUNDA. {Communicated March \3th, 1865.) BY AUG. R. OROTE, & COLEMAN T. ROBINSON. Genus CITHERONIA. Hiibner. Citheronia sepulcralis, Grote and Eobinson. Anterior wings of a deep rich purplish brown, almost concolorous, veins narrowly marked with dull reddish ; a small rounded fawu-colored spot at extreme base, situate midway between the costa and internal margin ; an ill-defined dark discal spot on the cross-vein which closes the cell, the vein covered with dark reddish scales which show as the •tenter of the discal spot ; an oblique, dark, regularly waved subterminal shade band preceded at costa by some pale markings; terminal space very slightly silky and more purplish than the rest of the wing. Pos- terior wings dull-brownish, veins marked with pale-reddish ; base of the wins covered with dark flesh-colored and reddish hairs, the former shade spreading on some of the hairs which clothe the lateral thoracic parts. Under surface of wings resembling upper but paler ; on the posterior wings the discal spot is quite distinct, pale reddish ; these are also crossed by a dark median shade band. Head, thorax, abdomen and legs dull brown, immaculate, concolor- ous, somewhat darker than the ground color of posterior wings ; % antennae similar in construction and coloration to those of C. regalia % . % . Ex. 3.10 inches. Length of body. 1.30 inch. Habitat. — Andover, Massachusetts. Collection of James (). Treat, Esq. The thorax is more elevated anteriorly than in Citheronia regafis Fabr. sp., otherwise the differences are merely those of coloration, which, while strikingly dissimilar, presents the same pattern of ornamentation with specific modifications; the subterminal band of the upper surface of the anterior wings is in Citheronia regalis macular and interrupted, while the shade band and discal spot on the under surface of the pos- 1865.] 223 terior wings in Citheronia sepulc rails, nobis, is produced in different colors in its congener. Both species have the veins marked with brighter scales and the anterior pair of wings spotted at base. Among other material kindly sent by Mr. Treat for examination, new to science and which will be illustrated by Mr. G-rote in a future paper, is the individual of this species from which we have prepared the foregoing description. The specimen is in excellent condition and has been reared from the larva, which latter, judging from Mr. Treat's observations, is nearly allied to that of Citheronia regalia, its more brilliant but hardly more beautiful congener. Assiduous collecting in the locality as well as in other allied districts, will doubtless be rewarded by the discovery of further specimens of this fine species which adds greatly to the beauty of our lepiclopterous fauna. The appreciating hand of the careful Entomologist is shown in the uniformly good con- dition of Mr. Treat's specimens and is worthy of general imitation, when we reflect that perhaps the greatest value of material belonging to the present Order consists in its perfect preservation. With alcoholic preparations of the £ imagos of Anisota stigma, pel- lucida and rubicunda before us, we do not appreciate sufficient distinc- tive structural characters to warrant a separation of the latter from the other species of the genus Anisota. The pterogostic characters are iden- tical in all these species, while the shape of the anterior wings under- goes a slight modification, since in A. stigma and pellucida they are broader and more triangular, owing to the greater length of the exter- nal margin and consequent depression of the external angle, while the apex is more produced than in A. rubicunda ; the shape of the wing is somewhat inconstant however in this genus and is different in sexes of the same species. The antennal structure is identical in all three species while the pectinated basal joints seem hardly so exaggerated in A. rubicunda. We fail to notice structural differences in the head and mouth parts or in the thoracic region, and although when we consider the coloration of A. rubicunda it seems foreign to Anisota, we see little divergence from the pattern of ornamentation which is a character of greater value. x\n analagous case of striking divergence of color be- tween a single species of a genus and the majority of its congeners may be cited in the instance of the European Saturnia coeclgena. From all that we can learn, the larva of A. rubicunda is similar to those of the other species of the genus, while we notice that in this group the generic position of the imago is well indicated in the modifications of larval structure. 224 [April Description of some new genera and species of North American LIMNOBINA. BY BARON R. OSTEN SACKEN. PART I. (Communicated March 13, 1865.) Since my previous publications on North American Limnobina (in the Proc. Acad. Nat. Sc. Phi/., 1859 and 1861) I have been gradu- ally collecting materials for a new and more complete work on the same subject, which, together with the work of Mr. Loew on Ttpulina, was intended to form the third volume of the Monographs on the North American Diptera. This volume would have thus contained a com- plete monograph of the family of Tipuli fuscis ; pedibus fuscis ; tibiarum apice nigro: alis iridescentibus, nervis costalibus fulvescentibus. Long. corp. (proboscide excepta) 'J, lin. 3, J lin. oi. Exp. alar. lin. 6i, 7. Habitat, apud Bahiam, Brazilian : in mus. nostro. Sp. 2. Limn, canadensis. Pracedenti valde similis. differt thorace, proboscide. tibiarum apice halteribusque concoloribus, femorum apice infuscato, nervis costalibus fuscescentibus. Long. corp. % lin. (?) j. Exp. alar. lin. 7. Hab in Canada: in mus. nostro. 232 [April stigmatical cloud) belong to Toxorhina. One of the species described by him, Limnobiorhynchus canadensis, of which he knew only the male sex, I have already shown to be an Elephantomyia. Tbe other species, L. braziliensis, described in both sexes, will have to be erased from the number of known species if my supposition is confirmed, because the female described under that name would belong to Toxorhina. and the male would be an Elephantomyia, sufficiently resembling tbe former to be mistaken for the same species, but nevertheless distinguished by a much smaller size, the presence of a stigmatic cloud, a slight difference in the coloring of the abdomen, besides the generic differences already alluded to. all of which are mentioned by Mr. Westwood himself. Thus the confusion which, for such a long time, was connected with the existence of the genera Toxorhina and Limnobiorhynchus seems to have reached, or at least, to be very near, its solution ! This confusion was principally due to the very striking coincidence that both West- wood and Loew possessed only males of a genus with a submarginal cell, and only females of another genus without a submarginal cell. Both of these authors were so much struck by the extraordinary pro- longation of the proboscis in both genera, that they united them into oue, with this difference, however, that Westwood noticed the difference in the neuration and described it as sexual; Loew, on the contrary, entirely overlooked this difference. The conclusions which we have thus reached are based upon facts which give them a very high degree of probability. The links of evi- dence which are still wanting are the discovery of the male of T.fra- gilis and of the females of the fossil species. The former would afford us certainty as to the generic identity of T. fragilis and T. magna; the latter would confirm or disprove the belonging of the fossil species to Limnobiorhynchus. As to the supposed non-existence of this latter genus, unless it can be proved or disproved by the production of Westwood's original specimens, we will have to wait for the negative evidence of its non-discovery in future.] Description of the Species. 1. T. magna, n. sp. % J. — Thorax fusco-flavescens, vittis tribus fuscis, fronte a.ngusta ; alis imraaculatis. Thorax brownish-yellow, with three brown stripes; front narrow: wings im- maculate. Long. corp. 0.5 — 0.6 (without the juroboscis). Head yellowish-cinereous ; front narrow, brownish in the middle ; antenna brown ; proboscis brown, about once and a half the length of the head and the thorax taken together. Thorax pale brownish-yellow, almost isabel-yellow, with three brown stripes; the intermediate one is rather broad : its sides are 1865.] 233 parallel and very well denned; it is slightly capillary on its posterior portion, near the scutellum only; beyond the suture, the thorax, including the scutellum and metanotum, are covered with a dense gray bloom ; pleurae brownish-yellow, with a cinereous bloom. Abdomen reddish-brown. Coxae yellow; feet brown- ish tawny; tips of the tibiae and the tarsi, except the basis of the first joint, brown. Wings hyaline; costal veins yellowish-tawny, the other veins brown; the tip of the auxiliary vein is almost exactly opposite the origin of the second vein: section of the second vein, posterior to the small cross-vein, arcuated; the great cross-vein is at the very basis of the discal cell : the inner diseal cross-vein is very oblique : no vestige of a stigma. Hal). — New Jersey, in July, (Cresson) ; a male and a female speci- men. Observation. — It is not impossible that the female of Limnobiorh/n- chm braziliensis Westw. is identical with our species, the male, as we have shown above, probably belonging to a different genus. West- wood's description (compare it above) is, however, too short to admit of identification. 2. T. muliebris, n. sp. % . — Obscure cinerea, fronte latiore, vittis thoracis ob- scuris, pedibus pallidis, alis immaculatis. Dark cinereous, front rather broad, stripes of the thorax blackish, feet pale tawny, wings immaculate. Long. corp. 0.3. Head blackish or dark gray ; occiput and occipital orbits cinereous ; antennae brownish; basal joints darker ; proboscis pale brown. Thorax blackish gray ; the usual three stripes are still darker, almost black ; they occupy the greater part of the mesonotum; the latter shows, especially on the sides, a yellowish bloom; metanotum blackish, with a gray bloom. Feet, including the coxae, yellowish ; tarsi infuscated from the tip of the first joint. Abdomen blackish; forceps of the male reddish-yellow. Wings hyaline; no vestige of a stigma; costal and first longitudinal veins tawny, the other veins darker brown ; the tip of the aux- iliary vein is very slightly beyond the origin of the second vein ; the section of the second vein, posterior to the small cross-vein, is strongly arcuated: the inner discal cross-vein is very oblique ; the great cross-vein is a little before the discal cell. Hab. — -Princeton, Mass. (Scudder) ; a single male specimen. Observation. — This species is distinguished from the preceding by its much smaller size, its darker and more gray coloring, and its com- paratively broader front. Whether the position of the great cross-vein, which in T. muliebris is before the discal cell, is also to be reckoned among the constant characters of the species, is uncertain, as I have but a single specimen. The joints of the flagellum of this species im- mediately following the stout basal joint, are very short and crowded together; they are more elongated in T. magna. The color of the only specimen in my possession is somewhat injured by moisture, especially about the head. 234 [April [Mr. Loew's reply to my queries for information about Triogma ha* come too late to be made use of in the text, otherwise it would probably have influenced my views about the location of T. nodicornis. Mr. Loew thinks that this species has either to be united to Cylindrotoma , or to be constituted as a separate genus. He would prefer the former course, because he possesses a Siberian species, Cylindrotoma nigri- ventris, which has the thorax sculptured almost like T. nodicornis and the antennal joints of which are somewhat expanded, thus likewise approaching the latter species. Mr. Loew also adverts to the difference in the general appearance, existing between T. nodicornis and T. trisul- cata, the latter being shorter and stouter, and further points out some other differences between them, in which T cannot fully concur. Mr. Loew had but a very small number of specimens of T. nodicornis for comparison and he was not aware of some characters, as for instance the structure of the first antennal joint and the frequent absence of the small transverse vein, which this species has in common with T. px- sculpta and not with Cylindrotoma americana. Until I have an op- portunity of seeing the European species of Cylindrotoma and Tiogma, my opinion about the location of T. nodicornis will remain unsettled; still, as a provisional arrangement, I would rather prefer the one adopted by me.] B. Second group : Limnobina cylinprotom^eformia. Gen. IX. CYLINDROTOMA. Characters. — First longitudinal vein incurved at the tip towards the second and ending in it (and not in the costa) ; one exterior marginal, a submarginal. a discal and four or Jive posterior cells. Anteiin.se 16-jointed, joints cylindrical, very elongated. Eyes bare, separated by a rather broad interval above and be- low the head. Tibiae with distinct spurs at the tip. Empodia distinct. For- ceps of the male with claw-shaped horny appendages, which, in the state of repose, are folded backwards, like the blade of a penknife, towards the upper side of their basal pieces ; a long, narrow, linear lamella, deeply bidentate at the tip, protrudes when the forceps is opened. Head rather broad posteriorly. Proboscis very short ; palpi somewhat elongated, last joint elongated ; in C. americana it is about equal in length to the two preceding joints taken together. Antennae rather long, joints elongated, almost cylindrical, finely pu- bescent, with short, thin, rather scattered verticils. Collar e moderately developed. Thorax short, stout. Feet slender; spurs at the tip of the tibire of moderate length ; fore coxae short; empodia distinct; excision at the basis of the last tarsal 1865.] 235 joint of the male, on the under side, rather small, and this joint not particularly modified. Abdomen long, slender, conspicuously club-shaped at the tip, in the male ; the ovipositor of the female, which I have not had occasion to examine, consists, according to Dr. Schiner, of four foliaceous valves, which in C. distinctissima have a very complicated structure. It seems, however, that this ovipositor belongs to the type of structure common to the whole group of Cylindrotomina. The neuration of the wings is, in several respects, different from that of the other Limnobina; the auxiliary vein stops short abruptly, and is somewhat indistinctly connected near its tip with the first longitudi- nal vein; the latter, instead of ending in the costa, is incurved towards the second longitudinal vein and ends in it ; a more or less indistinct cross-vein connects it with the costa; the second longitudinal vein forms with the third a fork, neither of the branches of which is in a straight line with the inner section of the second vein ; (a different structure of this fork characterizes Phalacrocera) ; the small cross-vein is always present and not rendered obsolete, as in Triogma, by the contact of the submarginal with the discal cell ; of the three veins emitted by the discal cell towards the margin of the wing, the anterior one in the Eu- ropean C. distinctissima and in 0. americana has a branch-vein, en- closing one more posterior cell, of which these species have thus Jive instead of four. The European C. glabrata has no such branch-vein, and consequently, only four posterior cells. Still, if we judge by Dr. Schiner's expression, that there are usually five posterior cells in C. distinctissima and four in G. glabrata, it would seem that this charac- ter is not altogether constant. In C. americana the discal cell is very much extended on the inside beyond the small cross-vein, towards the basis of the wing; this does not seem to be the case with the European C. distinctissima. The differences between this genus and the two following will be ex- plained under the head of the latter. The relationship of the whole group to Tipula and Ptychoptera has been developed above, in the general remarks on the Limnobina anomala. The genus Cylindrotomaw&s proposed by Macquart in 1834 (Suites a Bitffon, Dipteres, I, p. 107) for Limnobia distinctissima, Limnopliila macrocera Say and a Limnobia macroptera, which seems to be an Via. Later (Dipt. Exot. 1,1, p. 67) he added to it Limnobia erytlirocepliala Wied. and L. acrostacta Wied.. neither of which are Cylindrotomae. This mixture of species belonging to quite different genera proves how little Macquart understood the peculiarities of the species 0. distinctis- 236 [April sima which he proposed as the type of the genus. The cylindrical shape of the joints of the antennas was the only distinctive character on which he established the genus. Zetterstedt (1851) and Walker (1856) gave a more complete definition of the genus, to which Sehiner (1863) assigned its true position, by showing its relationship with Triogma tri&ulcata and Phalacrocera nudieomis. Three or four European and one North American species of Cylin- drotoma are at present known. Mr. Loew could distinguish in 1850 at least six fossil species included in amber. ( Loew, Bernstein u. Eern- steinfauna, 1850, p. 37.) The habits of this genus are very curious ; the larva lives on the under side of the leaves of certain plants, as Anemone, Viola, Stellaria. It is green and has a crest along its back, formed by a row of fleshv processes. It was first discovered and figured by Schellenberg ( Genres des Munches Dipteres in 1803), a circumstance which seems to have been overlooked since. The name of the genus is derived from the word cylinder and the verb tsfivu. I cut, in allusion to the cylindrical joints of the antennae. 1. C. americana n. sp. % . — Flava, capite flavo, thorace nigro-fasciato, anten- narum articulis subcylindricis, elongatis: cellulis posterioribus quinque. Yellow, head yellow, thorax striped with black, antennae with subcylindri- cal, elongated joints ; five posterior cells. Long. corp. 0.45. Head pale yellow, rounded and but little attenuated posteriorly; a pale brown spot on the vertex: palpi brown; the antennae, if extended backwards, would reach the end of the second abdominal segment; two basal joints pale yellow, the first not much longer than the second; third joint yellow at the ex- treme basis only, elongated, cylindrical ; the following joints a little shorter than the third, elongated, subcylindrical, slightly attenuated at the basis: they are nearly of the same length to the end of the antenna; the flagellum is clothed on both sides with a delicate and dense pubescence, among which some longer, but also very delicate verticils are scattered. Thorax pale yellow, opaque above, with a black, opaque stripe in the middle, reaching from the scutellum to the collare and divided longitudinally by a very narrow yellow line; the lateral stripes are dark brown, sometimes pale brown, abbreviated anteriorly and reaching beyond the suture posteriorly; a brown spot on the pleurae, between the root of the wings and the collare and another brown spot on each side of the 2">ectus. between the first and second pair of coxae : halteres pale, dusky at tip: feet yellow, tarsi brown towards the tip. Abdomen brown- ish-yellow, darker along the lateral margins: its tip (in the male) is rather stout, club-shaped. Wings hyaline, very slightly tinged with yellowish-cine- reous; stigma short, pale; the inner and outer section of the second vein are almost of equal length; the first vein ends in the second at about the middle of the outer section of the latter: submarginal cell a little longer than the first posterior: small cross-vein short; discal cell rather large, elongated: its inner end pointed and nearer to the basis of the wing than the inner end of the sub- 1865.] 237 marginal cell; the outer end of the discal cell emits four veins towards the margin : the anterior among these veins is very arcuated at its basis, so that the cell it frames in seems to be carved out of first posterior cell : great cross- vein somewhat beyond the basis, but before the middle, of the discal cell ; fifth longitudinal vein incurved at the tip. More structural details about this spe- cies have been given among the generic characters. Hah. — White Mountains. N. EL, end of June. 1836 (nob.) ; two male specimens. Observation. — I will mention here some peculiarities of the structure of the thorax of this species, which 1 have omitted in its description, as unimportant for its recognition. The thoracic transverse structure is marked by a very delicate groove in the shape of a Y or of a fork, the two ends of which run parallel towards the collare and the handle reaches the scutellum ; a transverse impression on each side connects this fork with the sides of the thorax, near the root of the wings and thus completes the transverse suture. These slender grooves on the thoracic dorsum foreshadow the more distinct sculpture of Triogma. The scutellum in both genera has two distinct pits near its basis. The European C. distinctissima seems to be very like C. americana in its coloring. Gen. X. TRIOGMA. Characters. — First longitudinal vein incurved at the tip towards the second and ending in it (and not in the costa) ; one exterior marginal, a submarginal. a discal and four posterior cells; the small cross-vein is often wanting, the sub- marginal cell, near its basis, being in immediate contact with the discal cell. Antennte 16-jointed ; joints short-oval or heart-shaped. Eyes bare, separated by a rather broad interval above and below. Tibiae with distinct spurs at the tip. Empodia distinct. Forceps of the male analogous to that of Cylindrotoma ; a style or aculeus, three-lobed at the tip. is always jn-esent, often concealed, sometimes projecting. The ovipositor of the female has short, broad valves, obtuse at the tip. Head but moderately narrowed posteriorly and rather closely applied to the collare. Proboscis very short ; jxtlpi of moderate length or rather short; last joint elongated. The antennas, of the European T. trisulcata and the American T. exsculpta have short-oval, almost rounded joints of the flagellum ; in T. nodicornis the flagellum is moniliform, the joints being almost heart- shaped and connected by short pedicels; the last joint of T. nodicornis has a cylindrical prolongation which may be easily taken for a 17th- joint ; the verticils are short. Co/lure moderately developed, in the shape of a transverse fold. The thorax of the three species at present known is sculptured in a manner (juite unusual in the Tipularia and even among the Dvptera 238 [April in general ; there is a move or less distinct groove running from the collare backwards, along the middle of the mesonotum ; on each side of it there is a densely rugoso-punctate stripe ; the upper part of the me- tanotum is also densely rugoso-punctate. Feet rather strong, fore coxae short ; spurs at the tip of the tibiae of moderate length; e in podia large, distinct; last joint of the tarsi in the male moderately excised at the basis on the under side and its shape not modified. The male and female genitals arc very much like those of Oj/lindro- i did a ; to the basal pieces of the male forceps is fastened, on each side, a claw-shaped horny appendage, which in repose is folded backwards, and closely applies to the upper part of the basal piece. The large horny lamella or aculeus existing between the two halves of the forceps, is somewhat differently shaped here ; it consists of three long, slender, horny styles, connate at their bases and separate from each other to- wards their tips; these tips are incrassated; (in (Jylindrotoma the three styles are connate on their whole length, thus forming a lamella which is tridentate at the tip). This lamella or aculeus is thrown out when the forceps opens, and often, but not always, remains in this position in dry specimens. This description of the forceps refers to T. nodicor- nis, which I have observed in the living state; but judging from Dr. Schiner's short description of the forceps of T. trisulcata, it must have a somewhat similar structure. Of T. exsculpta I know the female sex only ; the valves of the ovipositor both of this species and of Triogma nodicornis are short and broad. The principal feature of the neuration, the course of the first longi- tudinal vein, which does not end in the costa, but is incurved at its tip towards the second vein, is the same here as in Cylindrotoma. The auxiliary vein ends abruptly at the inner end of the stigma and has but an indistinct connection with the first longitudinal vein. In some spe- cimens, a slight vestige of an oblique cross-vein connects the latter part of the first vein with the costa. Where this cross-vein does not exist, there is no separation between the marginal and the costal cell. The frequent absence of the small cross-vein seems to be a peculiarity of this genus; the basal part of the submarginal cell thus comes in immediate contact with the discal cell. This character is very frequent, although not altogether constant ; T. trisulcata and T. exsculpta seem usually to possess it; still, among seven specimens of the former, Schuinmel {Beitreege etc. p. 106) observed one which had a small cross-vein, but that on one wing only; with T. nodicornis this exception seems to be more frequent, as among fifteen specimens which I have before me. 1865.] 23!) four have a small cross-vein. The three known species of Triogma have only four posterior cells. The relationship of Triogma and Cylindrotoma is very great, and the principal differences consist in the structure of the antennae and the frequent absence of the small cross-vein in the former genus. The general appearance of Triogma is heavier than that of Cylindrotoma, the feet are stouter, the abdomen loss .slender at the basis, but also (in the male) less club-shaped at the tip; the first antennal joint of C. americana is not much longer than the second, whereas it is distinctly longer in Triogma. This genus was proposed by Dr. Schiuer in 1863 for the European Limnobia trisulcata Schmnmel; a precisely analogous form is the North American Triogma exsculpta. T. nodicornis is somewhat more like Cylindrotoma in its coloring and its general appearance; still the sculp- ture of its thorax and the frequent absence of the small cross-vein on its wings apparently refer it here, uuless, on account of the peculiar structure of its antennae, we establish a separate genus for it ; this, ac- cording to my opinion, would be altogether useless. These three spe- cies are the only ones of the genus at present known. The name of the genus is derived from tpiis, three, and 67,1165, furrow, in allusion to the thoracic furrows. Description of the Species. 1. T. exsculpta, n. sp. 9 . — Fusca, alis infuscatis : thoraee sulco medio impresso : vittis ejus lateralibus, capite metanotique parte anteriore rugoso-pimctatis. Brown, wings tinged with brownish: thorax with an impressed groove in the middle; head, lateral stripes, and the anterior part of the metanotum, rugoso- punctate. Long. corp. 0.37. Whole body dull brown ; front and vertex rugoso-punetate, with a longitudi- nal furrow in the middle; palpi brown; antennae, basal joints brown, flagellum paler, joints of the latter sub-ovate. Thorax with a deep longitudinal furrow in the middle; the lateral stripes are marked by a deep, irregular punctation : from the anterior part of these rugo o-punctate stripes a similar punctation ex- tends backwards, along the sides of the mesonotum ; the anterior part of-the metanotum is deeply rugoso-punetate, and some parts of the pleurae are also punctate. Halteres dingy brownish-tawny ; coxae brown, feet tawny, clothed with black hairs. Abdomen brown. An indistinct cross-vein connects the latter part of the first longitudinal vein with the costa; the basal part of the submar- ginal cell is in contact with the discal cell, so that there is no room for a small cross-vein; the discal cell is elongated, quadrangular. Hab. — Pennsylvania (Cressou); a single female specimen. 2. T. nodicornis, n. sp. % 9 • — Obscure flava, capite nigro, thoraee nigro-vit- tato, antennis moniliformibus, articulis earum brevibus, subcordiformibus. 240 [April Dark yellow, head black, thorax with black stripes, antennae moniliform, their joints short, almost heart-shaped. Long. corp. 0.4 — 0.42. Head black, shining; palpi brownish; antennae dark brown, reaching a little beyond the basis of the abdomen in the male and somewhat shorter in the the female; two basal joints and the basis of the third brownish-yellow: first joint cylindrical, of moderate length : the second short; joints of the flagellum, especially the middle ones, are not much longer than broad, expanded on the under side so as to appear almost heart-shaped, and connected by short pedi- cels, so as to make the antenna appear moniliform; the last joint is abruptly narrower than the preceding and about twice its length, subcylindrical ; it shows a. coarctation in the middle, which is more apparent in some (fresh) specimens than in others, and then the antennae may be taken for 17-jointed : in the female, the joints of the flagellum arc much less expanded, and only seven or eight intermediate joints have a strikingly heart-shaped appearance; towards the tip, they become gradually narrower; in both sexes, the antennae are clothed with a soft, dense pubescence, much denser on the under side, and much more striking in the male than in the female; besides, each joint has about the middle several verticils. Thorax honey-yellow, with three Idack, shining, often confluent stripes: pectus between the first and second pairs of coxae, black, shining: this Idack coloring is extended upwards, across the pleu- rae, in the shape of a black, but not shining stripe: a black, opaque spot near the base of the halteres, aciculate on its surface: metanotum, or at least its posterior part, Idack, its surface rugose: (very dark specimens, with confluent tlmracic stripes, have all these spots and -tripes darker and more extended: those specimens, on the contrary, which have the thoracic stripes separated by yellow, especially towards the scutellum, have also the other black marks smaller in extent and paler in coloring, often pale brown, and the pectus is black on the sides only, yellow in the middle). A well marked groove extends from the. scutellum along the middle of the intermediate stripe, and is inter- rupted long before reaching thecullare; the intervals between the intermediate and the lateral stripes are rugoso-punctate. Halteres pale, knob dusky. Feet brownish-yellow; tip of the femora, of the tibiae, and of the two first tarsal joints, infuscated ; two or three last tarsal joints brown. Abdomen brownish, last segments darker, venter paler ; genitals brownish-yellow. Wings tinged with brownish-cinereous; stigma elliptical, brownish; inner ami outer sections of the second vein of almost equal length, the latter perhaps somewhat longer: submarginal cell longer than the first posterior; discal cell of variable, gene- rally of moderate size, nearly quadrangular ; four posterior cells : position of the great cross-vein variable, sometimes a little before, sometimes a little be- yond the basis of the discal cell; the small cross-vein is usually wanting, that is, the basis of the submarginal cell is more or less contiguous to the basis of the discal cell ; the extent of this contiguity is variable in different specimens : sometimes the small cross-vein is present, but then it is short ; (among fifteen specimens which I have before me, only four have the cross-vein) ; the fifth longitudinal vein is incurved at its tip. Hah. — Washington. D. C. ; New York ; White Mountains, N. II. (iio/i.); Illinois (LeBaron); New Jersey (Cresson). Not rare in May and June. Observation. — The aculeus of the male forceps is very often project- 1865.] 241 iog iu the dry specimens of this species. It consists, as already observed, of three horny, slender styles, connate at the basis, separate and some- what club-shaped at the tip. Gen. XI. PHALACROCERA.® [This is another portion of my manuscript which was left unfinished, as I was expecting Mr. Loew's opinion about the location in this genus of the following species. It agrees with Phalacrocera Schiner, (1. c. II, p. 561) in all respects, with the exception that in the European P. nudicornis the first longitudinal vein takes the usual course and is not incurved towards the second, as is the case with P. tipulina and with the other Limnobina cylindrotomseformia. This difference, if it is a constant one, and if it really exists as stated, would be important. Under such circumstances, the location of the following species in this genus should be considered as only provisional. The antennae of Phalacro- cera nudicornis, rather incompletely described iu Dr. Schiuer's work, are exactly like those of P. tipulina, as I had occasion to ascertain through the kindness of Dr., Schiner himself.] P. tipulina n. sp. %, — Fuscescens, capite et thorace supra obscure einereis, hoc obsolete vittato, pleuris canis ; antennarum articulis subcylindricis, elon- gatis ; cellulis posterioribus quatuor. Brownish; head and thorax dark cinereous above, the latter with obsolete stripes; antenna; with subcylindrical, elongated joints ; four posterior cells. Long. corp. 0.55. Head considerably narrowed posteriorly, blackish above, with a yellowish- cinereous bloom and a small reddish spot in the middle of the vertex, posteri- orly; the under side of the head is brownish: proboscis brownish-yellow; palpi brown; the antennae, if extended backwards, would reach the end of the second abdominal segment ; they are dark brown or black ; the first half of the first joint and the basis of the third are reddish ; first joint cylindrical, elon- gated : second short; the third and the following joints are elongated, cylin- drical, somewhat incrassated on their anterior half and with the verticils inserted on that incrassation ; the flagellum is clothed on both sides with a very short and soft pubescence : (the structure of the antennas is remarkably like that of some Tipulae). Thorax above with a yellowish-cinereous bloom, concealing the blackish ground color; the latter is more apparent in the place of the usual stripes, whereas tin.; cinereous bloom is more dense in the some- what impressed intervals between the stripes; pectus black between the first and the second pairs of coxae anil this black color extended upwards, in the shape of a stripe over the pleurae : a black spot near the basis of the halteres ; the remaining portion of the pleurae brownish-yellow; the whole of the pleurae are covered with a dense hoary bloom, so that their black portions are visible in a certain light only; collare rather broad, brownish; scutellum and meta- notum brownish-yellow, the latter with a yellowish, shining reflection: hal- teres dusky ; coxae yellowish, with a hoary bloom : femora tawny, yellowish at ' h ^aXaxpoj. bald. 242 [April the basis, and infuscated at the tip : tibire brownish, darker at the tip ; tarsi brown. Wings with a brownish-cinereous tinge, stigma pale brownish, small, oblong: second longitudinal vein arcuated at the basis; its inner section not much shorter than the third vein, with which it forms a straight line : its outer section forms a 'knee or a right angle at its basis, usually with a stump of a vein, projecting from this angle; submarginal and first posterior cells precisely of the same length; second posterior cell attenuated at its basis; discal cell elongated, square: great cross-vein inserted before the middle of the discal cell: fifth longitudinal vein inflected at the 'tip. Although the first longitudi- nal vein, in this species, as in all the Cylindrotomoeformia is incurved towards the second, it has, at some distance lief ire the tip, a rather indistinct, slen- der, oblique cross-vein, connecting it with the costa. Hub. — White Mountains, N. H., (nob?)', two male specimens. Catalogue of HYMENOPTERA iu the Collection of the Entomological Society of Philadelphia, from Colorado Territory. BY E. T. CRESSON. (Communicated March loth, 1865.) The greater part of the collection composing the papers which I propose to publish under the above title, was collected in the mountain region of Colorado Territory, in the summer of 1864, by Mr. James Ridings, and most generously presented to the Entomological Society by Dr. Thomas B. Wilson. The species are numerous, and most of the families are well repre- sented ; many of the species, especially those belonging to the Eume- nidre and Apid;xi, are beautifully adorned, and almost too brilliant in their colors to be inhabitants of a climate so temperate as that of the mountain region of Colorado Territory. Fam TENTHREDINID.E. Genus CIMBEX, Fabr. Cimbex americana, Leach. Cimbex americana, Leach, Zool. Miscel. iii, p. 104. Norton, Proc. Ent. Soc. Philad. i, p. 201 (with full synonymy). One % specimen with hyaline wings. Genus TRICHIOSOMA, Leach. Trichiosoma triangulum. Kirby. Trichiosoma triangulum, Kirby. Fauna Bor.-Am. iv, p. 254. Norton, Proc. Ent. Soc. Philad. iii, p. 5. Two specimens. Genus SCHIZOCERUS. Latr. 1. Schizocerus plumiger. King. Hylotoma plumigera, Klug. Berlin Magazin, 1814, p. 306. Cryptus Klugii, Leach, Zool. Miscel. iii, p. 125. 1865.] 243 Schizocerus plumigcra, Norton, Proe. Ent. Soc. Philad. iii, p. 7. Three ? specimens. The specimens before me of this species, are bright honey-yellow, sometimes saffron-yellow, especially the thorax, shining; in one specimen the head is entirely black, in the other two most of the cheeks, the occiput, and an obscure spot on each side of the face, are saffron-yellow; the antennae are entirely black; on the thorax beneath, in front of the intermediate legs, there are two large, approximate, black marks ; the legs are black, the two anterior pairs are tinged with piceous, with the tips of then' femora, and their tibia? and tarsi more or less testaceous, especially within ; the extreme base of the abdomen has two transverse fuscous marks, and the extreme tip is blackish ; the wings are tinged with fuliginous, especially about the base. Length 31 — 4 lines; expanse of wings 7 — 8? lines. 2. Schizocerus abdominalis, n. sp. Black, polished ; prothorax and abdomen honey-yellow; wings tinged with fuliginous. Male. — Black, polished ; face clothed with short, pale, sericeous pubescence; mouth piceous; antenna? as long as the head and thorax, black, the third joint pale within, furcate, and clothed with long, black pubescence. Thorax smooth and polished ; prothorax honey-yellow ; tegula? piceous. Wings ample, broad, tinged with fuliginous, espe- cially about the base ; nervures and stigma black. Legs shining black, the anterior tibia? and tarsi pale. Abdomen bright honey-yellow, with two transverse spots at the extreme base, and the extreme tip, fuscous. Length 3? lines; expanse of wings 7? lines. One specimen. This may be the % of S. plumiger. Genus DOSYTHEUS. Leach. 1. Dosytheus bicolor, Beauv. Tenthredo bicolor, Beauv. Ins. Afriq. et Amer. p. 97, pi. 9, fig. 1. Dosytheus bicolor, Norton, Proc. Bost. Soc. Nat. Hist, viii, p. 153. One $ specimen. 2. ? Dosytheus aprilis, Norton. Dosytheus aprilis, Norton, Proc. Bost. Soc. Nat. Hist. viii. p. 152. One specimen, the legs of which are entirely black, in which respect it resembles I). inxi one £ > specimens. 2. Tenthredo semirufa, Norton. Tenthredo semirufus, Norton, Proc. Ent. Soc. Philad. iii, p. 12. Two 9 specimens. 3. Tenthredo variegata, Norton. Tenthr do vari.egatus, Norton, Proc. Ent. Soc. Philad. iii, p. 12. One % specimen. 4. Tenthredo variata, Norton. Tenthredo variatus, Norton, Proc. Ent. Soc. Philad. iii, p. 12. Two 9 , live % specimens. 5. Tenthredo xanthus. Norton. Tenthredo xanthus, Norton, Proc. Ent. Soc. Philad. iii, p. 13. Twenty-four ( £ 9 ) specimens. 6. Tenthredo rifipes, Say. Tenthredo rufipes, Say, Long's 2nd Exp. ii, p. 317. One 9 specimen. 7. Tenthredo pleuralis, n. sp. Black: clvpeus, labrum, mandibles, margins of prothorax, most of legs and body beneath, white; apical half of abdomen ferruginous; wings subhyaline. Female. — Head black shining, quadrate, vertex depressed, eyes pro- 246 [April ininent ; a small spot at the base of each antenna within, a minute dot on the inner orbit near the summit of the eyes, the clypeus, labrum. mandibles except tips, lower half of cheeks, and the palpi, white; an- tennae as long as the head and thorax, rather slender, entirely black, third joint one-fourth longer than the fourth, the fourth and fifth equal in length, remaining joints shorter, subequal, gradually attenuated. Thorax shining black, minutely sculptured ; the broad upper, and nar- row lower margins of the prothorax, a large broad mark on each side of the pleura, and most of the two spaces on each side between and above the four posterior coxae, white ; postscutellum deeply punctured, with a minute white dot on each side ; tegulaa white. Wings ample, pale yellowish-hyaline, iridescent; nervures blackish, yellowish at base as well as the costa and base of stigma. Legs whitish ; the femora and tibiae behind, especially at tips, black ; tarsi ochraceous. Abdomen shining; the basal half above black, white on each side, remaining seg- ments ferruginous; venter whitish, tinged with ferruginous at tip; ovi- positor whitish, sheaths black. Length 5$ lines; expanse of wings 11 lines. Male. — More slender than the female, the antennas a little longer, the pleura entirely white, the base of the abdomen blackish, and the re- maining segments honey-yellow, the apical ventral segments tinged with the same color; the wings have a very faint tinge of yellowish. Length 4J lines; expanse of wings 9£ lines. One 9 , one % , specimens. Genus LYDA, Fabr. 1. Lyda brunnicans, Norton. Lyda brunnicans, Norton, Proc. Ent. Soc. Philad. iii, p. 15. One $ specimen. 2. Lyda multisignata, Norton. Lyda multisignatus, Norton, Proc. Ent. Soc. Philad. iii, p. 15. One 9 specimen. 3. Lyda cavifrons, n. sp. Black; face, mouth, outer orbits, tegulse and legs, pale luteous ; wings fusco- hyaline; face concave. Female. — Shining black; head with a deep longitudinal furrow on each side of the ocelli, extending from the base of the antennae to the occiput, connected by a cross furrow just behind the ocelli ; face con- cave, the margins prominent, subcarinate, with a longitudinal ridge on the middle of the clypeus ; the face, two spots above the base of an- tennae, clypeus, labrum, mandibles, palpi, lower inner orbits, the outer orbits, interrupted in the middle and extending on each side behind 1865.] 247 the eyes to the occiput, yellowish or pale luteous ; antenna; dull black, 27-jointed, the scape beneath luteous, first joint stout, nearly four times longer than the second. Thorax polished; tegulse and a spot before it, pale luteous. Wings ample, stained with pale fuscous, clearer at base, with a brassy and iridescent reflection ; nervures black, pale at base as well as the costal nervure ; marginal dividing nervure not co- inciding with the second submarginal nervure, the third branchial cell with an incomplete cross nervure. Legs pale luteous; the coxae, and the trochanters except tips, black ; tarsi dusky at tips ; anterior tibia; without side spur, each of the four posterior tibiae with two side spurs. Abdomen shining black ; the extreme lateral margins of the dorsal segments and the apical margins of the ventral segments pale luteous; extreme apical segment testaceous. Length 4 lines ; expanse of wings 8 lines. One specimen. Fam. UROCERID^E. Genus UKOCERUS, Geoffroy. 1. TJrocerus flavicornis, Fabr. Sirex flavicornifs, Fabr. Ent. Syst. ii, p. 126; Syst. Piez. p. 49. Sirex blzonatus, Steph. Brit. Entom. Mand. vii, p. 114, pi. 36. Kirby, Fauna Bor-Amer. iv, p. 256. Ten 9 specimens. 2. TJrocerus caudatus. n. sp. Black: prothorax narrow, rugose, with a stripe on each side and a spot on each side of occiput, whitish ; wings subhyaline; legs obscure luteous ; ovipo- sitor longer tban abdomen. Female. — Black, subopaque; head subglobose, rugose, thinly clothed with black pubescence, long on the cheeks beneath ; behind the ocelli and the cheeks polished, with a few deep scattered punctures, a longi- tudinal furrow on the disk, with a depression on each side; mandibles polished, and, as well as the lower part of the cheeks, tinged with pice- ous ; an ovate whitish spot on each side of the occiput, antenna; slen- der, about half the length of the body, entirely black, 23-jointed, slightly pubescent, the basal joint long and thickened at tips, roughly punc- tured, third joint nearly as long as the first, remaining joints gradually shorter to the tip, the terminal joint minute, about half as long as the penultimate. Thorax rugose, thinly clothed with short black pubes- cence ; prothorax large, narrow, depressed, subquadrate, coarsely ru- gose, the sides above covered with small irregular tubercles, anterior margin broadly emarginate above, excavated beneath, on each lateral margin a broad longitudinal whitish stripe, extending from the tegular 248 [April to the extreme anterior margin and ends in the excavation ; mesothorax rather small, rugose, especially in the middle ; scutellum suborbicular rugose ; pleura densely punctured or finely rugose ; tegulae fuscous rugose. Wings subhyaline, slightly and somewhat irregularly stained with fuscous, with a faint violaceous reflection ; nervures fuscous, cost; testaceous. Legs slender, slightly pubescent, and, including their coxae, entirely obscure luteous, somewhat tinged with brownish. Abdomen elongate, narrow, deep black, somewhat velvety, immaculate ; apical segment polished, with a subtriangular depression on the disk, the apex much prolonged, sublanceolate, slightly dilated beyond the middle, pointed at tip and irregularly serrate and punctured on the sides; ovi- positor as long as the body, reddish-brown, polished, sheaths piceous, yellowish on the inside, the outer surface covered with oblique striae; venter piceous-black, shining. Length 11 lines ; expanse of wings 15j lines. One specimen. This may be identical with U. spectrum of Europe, but the descriptions do not quite agree and I have no specimens of the latter for comparison. Fam. CYNIPUm Genus IBALIA, Latreille. Ibalia ensiger, Norton. Ibalia ensiger, Norton, Proc. Ent. Soc. Philad. i, p. 200. One 9 specimen differs from the type, from Pennsylvania, only by the abdomen being less broid, not so much compressed and margined on the upper edge with blackish ; the anterior wings have a cloud be- neath the stigma. Fam. EVANIID^E. Genus FCENUS, Fabricius. 1. Foenus oscidentalis, Cresson. Foenus occidentalis, Cresson, Proc. Ent. Soc. Philad. iii, p. 131. Four $ specimens. 2. Foenus psrplexus, Cresson. Fcenus perplexus, Cresson, Proc. Ent. Soc. Philad. iii, p. 131. Five 9 specimens. 3. Fcenus montanus, Cresson. Foenus montanus, Cresson, Proc. Ent. Soc. Philad. iii, p. 132. One 9 specimen. i. Foenus incertus, Cresson. Fcenus incertus, Cresson, Proc. Ent. Soc. Philad. iii, p. 133. Seven 9 specimens. 1865.] 249 Genus AULACUS, Jurine. Aulacus rufitarsis, Cresson. Aulacus rufitarsis, Cresson, Proc. Ent. Soc. Philad. iii, p. 134. Six 9 specimens. Fam. ICHNEUMONTDJE. SuMuil. ICHNEIIMONIDES. Gen. ICHNEUMON, Linn. 1. Ichneumon Blakei, Cresson. Ichneumon Blakei, Cresson, Proc. Ent. Soc. Philad. iii, p. 139. One % specimen. 2. Ichneumon montanus, Cresson. Ichneumon montanus, Cresson, Proc. Ent. Soc. Philad. iii, p. 141. Four 9 , seven % specimens. Two females have a more or less dis- tinct whitish annulus on the antennae. 3. Ichneumon pedalis, Cresson. Ichneumon pedalis, Cresson, Proc. Ent. Soc. Philad. iii, p. 141. One 9 , two £ specimens. The 9 has the antennae porrect. sericeous, and shorter than in % ; the wings are uniformly tinged with fuliginous, instead of fus< nus ind the legs are dark, rufous, with the tarsi more or less (1 4. Ichneumon semilaevis, Cresson. Ichneumon semilcevis, •■ sson, Proc. Ent. Soc. Philad. iii, p. 142. Two 9 specimens 5. Ichneumon macilemus, a. sp. Black: face, spot before tegulse and most of tibiaj and tarsi, yellowish; wings subhyaline: central area of inetathorax quadrate. Male. — Long and rather slender, dull black; the face, inner orbits, clypeus except its basal margin and a spot at tip, the mandibles except extreme base and apex, and the palpi, yellow ; antennae dull black, two- thirds the length of the body, stout at base and gradually attenuated towards the tip, basal joint beneath witb a yellow line. Thorax shin- ing, very closely and finely punctured, slightly pubescent; pleura cov- ered with fine punctures and somewhat longitudinally striated, espe- cially behind; a small yellowish spot immediately before the teguhe ; scutellum smooth and polished, with a deep excavation in front; ineta- thorax opaque, finely rugose, the elevate 1 lines well defined, the central area moderate, quadrate, somewhat elevated and flattened. Wings uniformly tinged with pale fuscous, honey-yellow at base; nervures blackish ; areolet subtriangular or slightly subrhomboidal. Legs black ; a spot on the four anterior coxae and trochanters beneath, tips of their femora, and the basal third of the posterior tibise beneath, yellow ; the four anterior tibiae, and all the tarsi, dusky-yellow, the posterior pair 250 [April above almost entirely dusky. Abdomen long and rather slender, opaque black, densely and finely punctured ; first segment somewhat shining, covered with fine longitudinal strife, the sides with short transverse striae ; basal foveas of the second segment small and well impressed ; beneath black, stained with obscure testaceous. Length 7 J lines; ex- panse of wings HA lines. One specimen. 6. Ichneumon audax, Cresson. Ichneumon audax, Cresson, Proc. Ent. Soc. Philad. iii, p. 143. Three % specimens. 7. Ichneumon caliginosus, Cresson. Ichneumon caliginosus, Cresson, Proc. Ent. Soc. Philad. iii, p. 144. One $ specimen. 8. Ichneumon luctus. n. sp. Ichneumon tenebrosus, Cresson, Proc. Ent. Soc. Philad. iii, p. 145. One % specimen. The name tenebrosus is preoccupied by Wesimel for an European species of this genus. 9. Ichneumon cordatus. Cresson. Ichneumon cordatus, Cresson, Proc. Ent. Soc. Philad. iii, p. 146. One S specimen. 10. Ichneumon obliteratus, Cresson. Ichneumon obliteratus, Cresson, Proc. Ent. So.'.. Philad. iii, p. 147. ( )ue % specimen. 11. Ichneumon subcyaneus, Cresson. Ichneumon subcyaneus, Cresson, Proc. Ent. Soc. Philad. iii, p. 148. One $ specimen. Differs from the type, from New Jersey, only by the annulus of the antennae being more distinct, the wings darker, and the abdomen more deeply tinged with bluish. 12. Ichneumon brevicinctor, Say. Ichneumon brevicinctor, Say, American Entomology, pi. 22. One % specimen. 13. Ichneumon apicalis, Cresson. Ichneumon apicalis, Cresson, Proc. Ent. Soc. Philad. iii, p. 152. One £ specimen. 14. Ichneumon ventralis, n. sp. Black, thorax polished; face, mouth, scape of antennae beneath, tegulse and a spot before and beneath, scutellum, most of legs and basal half of venter, bright yellow: lateral margins of abdomen above, the apical segment and the apical half of venter, fulvous; wings subhyaline: central area of metathorax subquadrate. Male. — Black ; head polished ; the face, inner orbits, clypeus. man- dibles except tips, and the palpi, bright yellow ; antennae two-thirds 1865.] 251 the length of the body, dull black, slender at tips, scape beneath yellow. Thorax polished, minutely punctured, the punctures more distinct on the pectus and pleura which are somewhat striated; tegulae, a short line before and another beneath, bright yellow ; scutellum flat, polished, feebly punctured, bright yellow, in one specimen with a large cordate yellow mark truncate at tip and covering nearly the entire surface ; metathorax finely rugose, opaque, the elevated lines sharply defined, the central area rather large, rounded before, and open behind. Wings subhyaline, stained with yellowish-fuscous, especially towards the tips ; nervures pale fuscous, yellowish at base, the stigma tinged with ferru- ginous ; areolet subtriangular ; the cubital nervures with a short rudi- mental nervure within the submarginal cell. Legs bright yellow, shining; the four anterior femora tinged behind with fulvous, with a black spot at base ; posterior coxae, basal joint of the trochanters within, and their femora except extreme base and apex, black, tips of their tibite dusky. Abdomen dull black, closely and finely punctured ; basal segment bilineated, rugose, somewhat striated ; basal foveas of second segment small, deep and striated ; extreme lateral margins of the second and following dorsal segments and the two apical segments entirely, fulvous; beneath fulvous, shading into yellow at base, the basal seg- ment black. Length G — 6| lines; expanse of wings 9? — 10 lines. Two specimens. 15. Ichneumon variegatus, Cresson. Ichneumon variegatus, Cresson, Proc. Ent. Soc. Philad. iii, p. 153. Twenty-seven % specimens. This species varies greatly in the mark- ings, especially of the abdomen ; the large yellow mark on the meta- thorax is sometimes much reduced, and often assumes the shape of a W ; the postscutellum is sometimes yellow and sometimes black; the basal segment of the abdomen is always black, occasionally with a yel- low band at tip or a minute yellow dot on each side; the second and third segments vary from entirely yellow to entirely ferruginous, but generally the former has the basal half yellow and the apical half fer- ruginous, and the third segment entirely yellow, the incisures are more or less broadly black, sometimes forming a band, dilated in the middle; in one specimen the second segment is yellowish-ferruginous, with the base and a quadrate spot on each side at tip, black ; the remaining seg- ments are generally dark ferruginous, with a black band across the base, sometimes much dilated in the middle and forming a quadrate mark covering one-half or two-thirds of the segment, and the extreme apical margins of the segments are sometimes yellowish ; two specimens have no ferruginous color whatever on the abdomen, it being yellow 252 [April and black, and the wings are more or less varied with yellowish ; these two specimens have the appearance of being distinct species, but only in the coloration, which can scarcely be a guide in such a variable spe- cies as this. 16. Ichneumon inconstans. Cresson. Ichneumon inconstans, Cresson, Proc. Ent. Soc. Philad. iii, p. 153. Two % specimens. 17. Ichneumon infucatus, n. sp. Black : face, clypeus, scape of antennre beneath, tegulae and a spot before and beneath, scutellum, niost of legs, and most part of three basal segments of abdomen, yellowish: wings fusco-hyaline ; central area of metathorax quad- rate. Male. — Black, clothed with short fuscous pubescence; face and cly- peus, yellow ; palpi testaceous, black at base ; tips of mandibles brown ; antennae more than half the length of the body, dull black, slender at tips, the basal joint beneath yellow. Thorax very closely punctured, especially on the pectus and pleura which are indistinctly striated; a cuneiform spot before and a short line beneatb the wings, yellow; scu- tellum subconvex, polished, entirely pale yellow, with a deep excavation in front, and the spaces on each side very much depressed ; metathorax coarsely rugose, the elevated lines tolerably well denned, the central area rather large and quadrate, slightly rounded in front; tegulae pale yellowish, dusky behind. Wings uniformly fuscodiyaline, tinged with yellowish; nervures fuscous, stigma fulvous; areolet subtriangular. Legs black; anterior femora except b.ise. mid lie trochanters beneath, tips of their femora, spot on the posterior trochanters beneath, extreme base of their femora, the four anterior tibiae, basal two-thirds of the posterior pair, and all the tarsi, yellow, the latter more or less dusky at tips. Abdomen elongate, rather robust towards the base, closely punc- tured ; basal segment broad at tip, bilineated, indistinctly striated, the dilated portion at tip yellowish-ferruginous, margined on the sides and behind with yellow, and shading into brown-black towards the base, sides of the segment transversely striated ; second and third segments orange-yellow, the basal foveas of the second segment as well as the basal half of the lateral margin, and basal margin of third segment, black; fourth segment dull orange-yellow, with the basal margin, dilated in the middle, black ; remaining segments black, narrowly margined at tip with ferruginous, the extreme tip fulvo-ferruginous ; beneath varied with yellow and dull fulvous. Length 7 lines ; expanse of wings 1 1 lines. One specimen. Closely allied to Ich. inconstans, but is shorter, more robust, more roughly punctured and somewhat differently colored, espe- 1865.] 253 cially the abdomen, which has the first segment more broadly dilated at tip. 18. Ichneumon bipunctatus. n. sp. Black ; spot on each side of clypeus, spot on tegulse and a line beneath, spot on tip of scutellum, legs, and most of second and third segments of abdomen. yelloV or yellowish-ferruginous; wings subhyaline; central area of metatho- rax large, quadrate. Malt. — Black, closely punctured, clothed with short pale pubescence; head entirely black, except a yellowish spot on each side of the clypeus ; palpi pale; antenna more than half the length of the body, slender at tip, entirely dull brown-black. Thorax shining, the punctures more sparse on the mesothorax ; anterior margin of the tegulas, and a short line beneath the fore-wing, pale yellowish ; scutellum shining, de- pressed, deeply excavated in front, with a yellow spot at extreme tip, the lateral carina sharply defined; nietathorax rugose, the elevated lines tolerably well defined, the central area large, quadrate, slightly transverse, with the posterior margin indented. Wings subhyaline, uniformly tinged with pale fuscous; nervures fuscous, paler at base; areolet subtriangular Legs yellowish, the femora, and the tips of the tibiae and tarsi, more or less stained with ferruginous. Abdomen elon- gate, dull black, very closely punctured ; basal segiuent bilineated and finely aciculate ; second and third segments yellowish-ferruginous, the latter with a large fuscous mark at base covering nearly half of the segiuent ; extreme lateral and apical margins of the remaining segments obscurely dull ferruginous; beneath dull yellowish, black at base and apex. Length GJ lines; expanse of wings 10$ lines. One specimen. Easily recognized by the black head, which is orna- mented only by a yellowish spot on each side of the clypeus. 19. Ichneumon delicatus, n. sp. Yellow ; vertex, occiput; antennae except basal joint beneath, spot on each side of the pectus, mesothorax except two dorsal lines, sides of scutellums, broad sutures of pleura, and the basal middle of the fourth, fifth and sixth seg- ments of abdomen, black ; femora and stains on the abdomen, pale ferruginous : wings subhyaline: central area of metathorax moderate, subquadrate. Mali'. — Head bright yellow ; a large mark extending from the base of the antenna;, covering the ocelli, and the back part of the head, black, leaving the frontal orbits narrowly yellow ; antennae two-thirds the length of the body, brown-black, sericeous, basal joint beneath yellow. Thorax delicately punctured, shining black ; broad upper and lower margins of the pectus, two central longitudinal lines on the meso- thorax confluent on the middle, tegulse, a line beneath the wings and a large irregular mark on each side of the pleura covering two-thirds 254 [April of its entire surface, all bright yellow ; scutellum rather convex an 1 polished, entirely yellow, as well as a small transverse spot on postseu- telluiu ; metathorax finely rugose, pale yellow, tinged with dull ferrugi- nous at base, the extreme basal and apical sutures, ami two spots on the extreme lateral margin, black, the elevated lines tolerably well de- fined, the central area moderate, and subquadrate. Wings subhyaline, slightly stained with yellowish-fuscous, especially along the nervures ; nervures ferruginous, paler at base ; areolet 5-angular, or subtriangular. Legs, including the coxae, yellow; the femora behind, and the posterior legs more or less ferruginous; the anterior and posterior coxae at base beneath, and tips of the posterior tibiae, black. Abdomen elongate, rather slender, bright yellow; basal segment bilineated, ferruginous, yellow at tip and shading into blackish towards the base ; second seg- ment with a transverse ferruginous stain near the tip, the basal foveae deep, somewhat linear and fuscous, as well as the incisure at base; third segment entirely bright yellow, except the basal incisure which is narrowly black; three following segments dull ferruginous, the fourth and fifth broadly, the sixth narrowly margined at tip with yellow, with a more or less broad transverse black mark at base ; apical segment fulvo-ferruginous; beneath pale yellow, the basal segment black, and the apical segments more or less fulvous. Length 65 lines; expanse of wings 9 1 lines. One specimen. Allied to Ich. Grotei, but quite distinct. 20. Ichneumon Grotei, Cresson. Ichneumon Grotei, Cresson, Proc. Ent. Soc. Philad. iii, p. 154. Five % specimens. 21. Ichneumon rubellus. n. sp. Black : face, base of antennae beneath, tegulae, a spot before and a spot be- neath the wings, scutellum, mark on metathorax behind and most of legs, yellow : abdomen, except basal segment and incisures, ferruginous ; wings sub- hyaline: central area of metathorax quadrate. Male. — Black ; face, clypeus, inner orbits, mandibles except tips, and palpi, bright yellow; antennae more than half the length of the body, dull black, scape beneath bright yellow. Thorax .shining, finely and rather closely punctured ; tegulae, a line before and a short one beneath the tegulae, yellow; scutellum yellow; metathorax finely rugose, the elevated lines distinct, the central area moderate, quadrate, posterior lace with a large yellow mark, sometimes reduced and forming a W. Wings subhyaline, sometimes uniformly pale fuscous, yellowish at base; stigma generally ferruginous; areolet 5-angular. Legs yellow; the four anterior femora with a black spot behind ; the posterior coxae, 1865.] 255 their femora except extreme base and apex, and the apical third of their tibiae, black, sometimes tinged with rufous ; posterior tarsi tinged with ferruginous. Abdomen orange-ferruginous ; basal segment slen- der, bilineated, finely aciculate, black ; basal foveas of the second seg- ment linear, oblique, black ; basal incisures of the third to sixth seg- ments black, that on the fifth and sixth segments sometimes very broad ; beneath ferruginous, stained on the middle with yellow ; one specimen has a ferruginous spot on the apical middle of the basal segment, and the basal half of the second segment is yellowish. Length 6 — 6£ lines; expanse of wings 9i — 10 lines. Five specimens. 22. Ichneumon pictifrons, Cresson. Ichneumon pictifrons, Cresson, Proc. Ent. Soc. Philad. iii, p. 160. One %> specimen. 23. Ichneumon bizonatus, Cresson. Ichneumon bizonatus, Cresson, Proc. Ent. Soc. Philad. iii, p. 160. ( )ne 9 specimen. 24. Ichneumon ambiguus, Cresson. Ichneumon ambiguus, Cresson, Proc. Ent. Soc. Philad. iii, p. 161. One specimen. Differs from the type, from Pennsylvania, only by the larger size (length 11 J, expanse 18 lines), by the wings having a violaceous reflection, and by the hind tarsi being entirely black. 25. Ichneumon montivagus, n. sp. Black; frontal orbits, sides of face, cordate spot beneath antennae, most of clvpeus. scutellum and the four anterior tibise and tarsi, excejit tips, white : wings fuliginous ; abdomen, except basal segment, yellowish-ferruginous; cen- tral area of metathorax large, quadrate. M'dc — Deep black, closely punctured; frontal orbits, very broad on each side of the face, a subcordate spot beneath the base of antennae, and the clypeus, except a spot on the middle anteriorly, white; antennae about half the length of the body, entirely dull black. Thorax black ; scutellum flat, white, except its extreme basal corners; metathorax finely rugose, the elevated lines tolerably well defined, the central area large and quadrate. Wings fuliginous, with violaceous reflection ; nervures black; areolet almost triangular. Legs black, extreme tips of the an- terior femora, their tibiaa except a spot beneath at tip, the two basal joints of their tarsi, a spot at the extreme tip of the middle femora be- neath, basal half of their tibiae, three basal joints of their tarsi, a line on each side of the posterior tibiae near the base, and the base of the first joint of their tarsi beneath, all white. Abdomen elongate, yellow- ish-ferruginous ; basal segment black, bilineated and very finely acicu- 256 [April late; basal fovea? of the second segment deep and oblique. Length 85* lines; expanse of wings lSJ lines. One specimen. Closely allied to Ich. ambiguus, but very distinct by the markings of the fice and legs, and by the shape of the central area of the nietathorax. 26. Ichneumon vinulentus, Cresson. Ichneumon vinulentus. Cresson, Proc. Ent. Soc. Philad. iii, p. 162. Three % specimens. 27. Ichneumon allapsus. n. sp. Black: face, tegulse, scutellum, and most of legs, bright yellow : abdomen, except base, dull rufous; wings subhyaline: central area of metathorax large, suborbicular. Male. — Black ; face, frontal orbits, clypeus, mandibles and palpi, bright yellow; antenna? more than half the length of the body, black, basal joint beneath yellow. Thorax closely punctured; tegulae, a spot before and a short line beneath the anterior wing, yellow ; scutellum slightly convex, entirely bright yellow, as well as a spot of the same color on the postseutellum, often wanting; metathorax rugose, dull black, sometimes with a W-shaped yellow mark on the posterior part, sometimes interrupted on the middle and forming an angular mark on each side, which is more or less reduced in different specimens; in six >pecimens the metathorax is immaculate; the elevated lines are well defined . the central area lame and suborbicular. beiua - broadly rounded in front and truncate behind. Wings subhyaline. slightly stained with fuscous, with a tinge of yellowish ; nervures fuscous, yellowish at base, stigma mostly ferruginous, sometimes fuscous; areolet 5-angular, some- what triangular. Legs yellow; the four anterior femora behind, the posterior coxa\ their femora and apical half or one-third of their tibia?, black ; tarsal claws dusky. Abdomen elongate, dull rufous ; the basal segment, and the base of the second segment more or less, black ; in one specimen the basal half of the second segment is black, while in others the lateral margins are black nearly to the tip of the segment; basal segment slender, bilineated and aciculate ; beneath rufo-ferrugi- nous. more or less stained with yellowish. Length 6 — 7 lines; expanse of wings 10 — 11 lines. Seventeen specimens. Closely allied to Ich. vinulentus but is smaller, with the markings bright yellow instead of white, and with the central area of the metathorax differently shaped. 2S. Ichneumon consimilis, Cresson. Ichneumon consimilis, Cresson, Proc. Ent. Soc. Philad. iii. p. 163. One % specimen. 1865.] 257 29. Ichneumon juxtus, Cresson. Ichneumon juxtus, Cresson, Proc. Ent. Soc. Philad. iii, p. 163. One % specimen. 3'0. Ichneumon animosus, Cresson. Ichneumon animosus, Cresson, Proc. Ent. Soc. Philad. iii, p. 164. Two % specimens. 31. Ichneumon festus, n. sp. Black : clypeus except a spot on the middle, spot on mandibles, and another on tegulse and scutellum, yellow ; legs ferruginous varied with yellowish : wings subhyaline; second and third segments of abdomen stained with dull rufous ; central area of metathorax quadrate. Male. — Deep black ; clypeus yellow, with a large fuscous spot on the anterior middle ; mandibles with a yellowish spot near the tips ; palpi ferruginous ; antennae entirely black, thickened towards the base. Tho- rax shining, delicately sculptured above, closely punctured on the pleura ; a spot on the tegulae and a minute spot before and beneath the anterior wing, yellow; scutellum punctured, deeply excavated in front, with a large yellowish spot at tip ; metathorax rugose, the ele- vated lines well defined, the central area large and quadrate. Wings subhyaline, slightly tinged with fuliginous and yellowish; nervures fuscous, yellowish at base ; areolet 5-angular. Legs yellowish, stained with ferruginous ; the coxae and trochanters black, the posterior femora and tips of their tibiae, ferruginous. Abdomen black, the second and third segments more or less stained with dull rufo-ferruginous ; basal segment bilineated and aciculate ; basal foveas of the second segment deep, oblique and striated ; apical segments polished ; beneath stained with dull rufous. Length 6* lines; expanse of wings 11 lines. One specimen. 32. Ichneumon vultus, Cresson. Ichneumon vultus, Cresson, Proc. Ent. Soc. Philad. iii, p. 165. One S specimen. 33. Ichneumon discus, Cresson. Ichneumon discus, Cresson, Proc. Ent. Soc. Philad. iii, p. 168. One % specimen. 34. Ichneumon longulus, Cresson. Ichneumon longulus, Cresson, Proc. Ent. Soc. Philad. iii, p. 171. One % specimen. 35. Ichneumon propinquus, Cresson. Ichneumon propiriquus, Cresson, Proc. Ent. Soc. Philad. iii, p. 172. Seven $ specimens. 258 [April 36. Ichneumon subfulvus. n. sp. Fulvo-ferruginous, shining; antennae involute: spaces on each side of scu- tellums, and narrow apical margins of the second, third and fourth abdominal segments, black; wings yellowish: central area of metathorax elongate-sub- quadrate, smooth and polished. Female. — Uniform fulvo-ferruginous, shining ; head and thorax finely punctured; eyes small, ovate; antennae three-fourths the length of the body, slender, involute beyond the middle, basal joint robust, globular ; scutellum subconvex, smooth and polished, the spaces on each side and behind, black ; metathorax clothed with pale pubescence, slightly sculptured, the elevated lines not well defined, the central area large, elongate-quadrate, extending all the way to the base, smooth and polished; tegulae tinged with yellowish. Wings uniformly tinged with yellowish-fuscous, slightly iridescent ; the nervures yellowish, nearly hyaline; areolet 5-angular. Legs color of the body; tips of the poste- rior tibia? dusky. Abdomen elongate-ovate, smooth and polished ; basal segment gradually dilated at tip, depressed and polished ; basal foveas of the second segment obsolete; narrow apical margins of the second and two following segments, black, subobsolete on the fourth segment; be- neath tinged with yellowish ; ovipositor subexserted. Length 4 — 5 lines; expanse of wings GJ — ~] lines. Two specimens. Closely allied to Ich. suturalis and propinquus, but much smaller, more slender, the wings differently colored, the body smoother, the antennae longer, more slender, and the metathorax dif- ferently sculptured. 37. Ichneumon subfuscus. Cresson. Ichneumon subfuscus, Cresson, Proc. Ent. Soc. Philad. iii, p. 173. One 9 specimen. 38. Ichneumon brevipennis, Cresson. Ichneumon brevipennis, Cresson, Proc. Ent. Soc. Philad. iii, p. 174. One 9 specimen. 39. Ichneumon laevigatus, Cresson. Ichneumon Icevigatus, Cresson, Proc. Ent. Soc. Philad. iii, p. 176. One 9 specimen. 40. Ichneumon dorsalis, Cresson. Ichneumon dorsalis, Cresson, Proc. Ent. Soc. Philad. iii. p. 177. One 9 specimen. 41. Ichneumon magnus, n. sp. Black; a lino on each side of the face, and the anterior tibia? in front, whit- ish ; wings fusco-hyaline : second and third segments of abdomen honey -yel- low ; central area of metathorax small, saggitate. Male. — Large, black, closely punctured; the face with a white line 1865.] 250 on each side; antennae half the length of the body, fuscous, thickened at base, gradually attenuated to the tips which are very slender, basal joint black. Thorax entirely black ; scutellum subconvex, closely punc- tured, deeply excavated in front with a sharply-defined carina on each side of the excavation ; metathorax rugose, the elevated lines well de- fined, the central area small, saggitate, flattened, shining and somewhat striated ; tegulae piceous. Wings ample, deep fusco-hyaline, rather paler at tip, and with a slight violaceous reflection ; nervures and stigma black ; areolet 5-angular ; the second recurrent nervure bent in the middle with a short process on the outside ; the cubital nervure with a rather long oblique rudimental nervure within the submarginal cell. Legs shining black ; the four anterior femora at extreme tips within, the anterior tibiae within and a line on the basal joint of their tarsi within, whitish ; the four anterior tibiae and tarsi tinged with piceous. Abdomen elongate, rather stout, deep shining black ; basal segment shining, bilineated, sparsely punctured, slender at base, dilated at tip, where it is tinged with obscure ferruginous; second and third segments bright honey-yellow, the basal foveas of the second segment very deep, transverse; beneath colored same as above. Length 10] lines; ex- panse of wings 19| lines. One specimen. This is one of the largest and fiuest species of Ich- neumon known to me ; it is easily recognized by its jet-black color, with the second and third segments of the abdomen honey-yellow. 42. Ichneumon limbifrons, Cresson. Ichneumon limhifrons, Cresson, Proc. Ent. Soc. Philad. iii, p. 1S2. One £ specimen. 43. Ichneumon exiguus, Cresson. Ichneumon exiguus, Cresson, Proc. Ent. Soc. Philad. iii, p. 182. One 9 specimen. 44. Ichneumon involutus, Cresson. Ichneumon involutus, Cresson, Proc. Ent. Soc. Philad. iii, p. 18;>. One 9 specimen. Genus STILPNUS, Grav. 1 Stilpnus obscurus, n. sp. Black: legs and abdomen, except base, ferruginous ; antennas brown; wings obscure hyaline. Male. — Black, shining; maudibles and palpi pale testaceous, the former blackish at tips; face slightly pubescent; antennae three-fourths the length of the body, brownish, paler and tinged with ferruginous at base beneath, the joints very distinct. Thorax smooth and polished, apparently impunctured; metathorax subrugose, with the elevated lines 200 [April tolerably well defined; tegulte yellowish-testaceous. Wings obscure hyaline, faintly iridescent ; nervures fuscous, yellowish at base. Legs pale ferruginous ; the eoxaj entirely, and the femora above more or less, piceous. Abdomen depressed, subsessile, dark ferruginous, shining, broadest behind the middle, and incurved at tip; basal segment black, finely sculptured, broad at tip with a stout tubercle on each side about the middle, and two well defined central longitudinal carinae. Length 21 lines; expanse of wings 4 lines. One specimen. 2. Stilpnus ? compressus. n. sp. Shining black ; tibiae and most of second and third abddminal segments, dull ferruginous: wings hyaline, iridescent: abdomen elongate, compressed, slen- der at base. Male. — Black, polished ; head trausverse. subcpuadrate, smooth, slightly pubescent, more dense on the face, which is short; mandibles rufo-piceous ; antenna; stout, as long as the head and thorax, slightly involute, entirely black, and clothed with very short pale pubescence. Thorax somewhat narrow, shining black, sparsely punctured, slightly clothed with pale pubescence; the prothorax obliquely striated; scu- telluin slightly prominent, rugose on the sides ; metathorax elongate, rugose, the elevated lines well defined and longitudinal, forming a very long and broad central area, which extends nearly the whole length of the metathorax and somewhat depressed ; tegular piceous. Wings rather ample, hyaline, beautifully iridescent ; nervures and stigma fus- cous, yellow at base. Legs short, rather stout, blacky thinly clothed with pale pubescence ; tips of the femora, and the tibiae entirely, ferru- ginous; the anterior tarsi tinged with yellowish. Abdomen elongate, black, highly polished, broad and compressed at tip ; basal segment long, slender, subcylindrical, strongly arcuated and gradually swollen towards the tip ; the incisure between the first and second segments deep; most of the second and third segments stained with dull rufo- ferruginous; remaining segments compressed ; venter much compressed and edged like a knife towards the tip. Length o| lines; expanse of wings 5 lines. One specimen. This singular insect seems to agree in every respect with the genus in which I have placed it, except the shape of the ab- domen which is entirely different from any other species of the genus known to me. 1865.] 261 Genus MESOLEPTUS, Grav. 1. Mesoleptus valens. n. sp. Black; most of mandibles, palpi, tegulse and most of tibiae and tarsi, yellow- ish: femora and basal half of abdomen, rufous; wings hyaline. Female,. — Large, black, thinly clothed with a very short pale pube- scence ; face finely rugose ; mandibles yellowish, black at tips which are deeply cleft; palpi yellowish; antennas more than half the length of the body, entirely black. Thorax finely punctured, subsericeous. shining; scutellum subconvex, deeply excavated in front; metathorax rugose, with a deep central excavation posteriorly, the elevated lines not well defined ; tegulae yellow. Wings hyaline, faintly tinged with fuliginous; nervures fuscous, yellowish at base; areolet small, trian- gular, subpetiolated. Legs yellowish ; coxae, tips of the posterior tibiae, the apical half of the basal joint of their tarsi, and the remaining joints of their tarsi except extreme base, blackish ; the four anterior femora tinged with ferruginous and the posterior pair entirely ferruginous. Abdomen elongate, slender at base and robust at tip, smooth and pol- ished, black ; basal segment slender at base, much swollen at tip, arcu- ated, its apical half, as well as the whole of the second and third seg- ments, rufous; apex slightly pubescent; venter yellowish at base; ovipositor exserted about the length of the first segment, piccous, fer- ruginous at tip, valves black. Length 4| lines; expanse of wings 7 lines. One specimen. 2. Mesoleptus montanus, n. sp. Black; legs rufous, four posterior tibiae and tarsi annulated with white; wings hyaline, iridescent, areolet minute, petiolated ; basal segment of abdo- men much dilated at tip ; ovipositor long. Female. — Black, somewhat shining, slightly pubescent, more dense on the face; most of the mandibles, palpi and tegulae, yellowish-white ; antennae piceous, more than half the length of the body; metathorax deeply sulcate on the posterior middle, indistinctly striated transversely, the elevated lines well defined, the central area not defined. Wings hyaline, beautifully iridescent; nervures and stigma blackish, the for- mer pale at base ; areolet minute, subtriangular and petiolated. Legs pale rufous ; the coxae, posterior trochanters, and extreme tips of pos- terior femora, black ; anterior legs pale in front; the four posterior tibiae and tarsi blackish, the tibiae with a broad exterior white line be- tween the base and middle, and a white spot at extreme base, and the base of the tarsal joints also white. Abdomen rather robust, subfusi- form, entirely black; first segment slender at base and much swollen at tip ; apical segments broad and faintly subcompressed ; ovipositor 262 [April exserted nearly the whole length of the abdomen, rufo-piceous. Length IJ.) lines; expanse of wings 5t lines. One specimen. Very closely allied to M. valuing from Pennsylvania, but is smaller, the areolet of the wings differently shaped and the legs somewhat differently colored. :'». Mesoleptus macer. n. sp. Black; mandibles and tegulse yellowish; legs ferruginous; wings hyaline, areolet minute, petiolated; abdomen subcompressed ; ovipositor long. Female. — Slender, black, somewhat shining, closely and finely punc- tured, slightly pubescent ; most of the mandibles, palpi, and the tegulae, pale yellowish ; antennae two-thirds the length of the body, slender, curled at tips, entirely black ; metathorax subrugose, the elevated lines sharply defined, the central area small and triangular. Wings hyaline, beautifully iridescent ; nervures and stigma blackish, the former yel- lowish at base; areolet minute, slightly oblique and petiolated. Legs slender, obscure ferruginous, the two anterior pairs tinged with yellow- ish, the posterior pair with dusky ; coxaa and posterior trochanters piceous. Abdomen elongate, slender at base, gradually broader and subcompressed towards the tip, entirely black ; tip of the first segment swollen ; venter tinged with obscure yellowish ; ovipositor exserted about half the length of the abdomen, rufo-piceous, valves black. Length 3 lines; expanse of wings 4-1 lines. One specimen. Allied to M. dubitatus, but the abdomen is entirely black, and the form more slender. Genus CTENISCUS, Haliday. 1. Cteniscus excelsus, n. sp. Black; most of the head and antennae, four stripes on mesothorax, spots on pleura, scutellums, two spots on metathorax, legs and bands on abdomen, white or yellowish-white ; wings hyaline ; abdomen clavate. Female. — Black ; the face, broad frontal orbits, dilated at the sum- mit, a small spot behind the eyes, lower half of the cheeks, clypeus, mandibles except extreme tips, and the palpi, white, slightly tinged with yellowish ; cheeks with a well defined longitudinal carina on each side ; a minute black puncture on each side of the face immediately above the clypeus ; antennae two-thirds the length of the body, slender, filiform, pale yellowish, blackish towards the base, especially above ; basal joint beneath yellowish-white. Thorax shining, minutely punc- tured, clothed with a thin pale pubescence ; mesothorax polished, ini- punctured; upper and lower margins of the prothorax, dilated above, the pectus in front of the anterior coxae entirely, a spot beneath the tegulse, an irregular mark on each side of the pleura, enclosing a black 1865.] 203 spot, a dot beneath the hind wing, four longitudinal (two central and a lateral) stripes on the niesothorax, dilated behind, the tegulre, scutel- lum and postscutellum, and a large spot on each side of the metathorax. yellowish-white; scutellum prominent; metathorax finely sculptured, the elevated lines well defined, the central area moderate, elongate- subquadrate. Legs slender, and including their coxae, yellowish-white ; the four anterior femora at base within, the posterior coxae at base within, their femora within except tips, and their extreme base exte- riorly, black ; posterior tibiae within except extreme base, and their tarsi entirely, fuscous. Abdomen strongly clavate, polished ; a spot on the tip of the first segment, and the broad apical margins of the remain- ing segments, white; basal segment depressed, with two tolerably well- defined central carinas, and a stout tubercle on each side at base and a smaller one on each side about the middle ; apex thickened and in- curved, faintly compressed ; venter white, the extreme base black ; ovi- positor subexserted. Length 41 lines ; expanse of wings 6£ lines. One specimen. 2. Cteniscus venustus. n. sp. Ferruginous; face, mouth, lower half of cheeks, pectus, spot on scutellum, base of legs and apex of abdomen, yellowish ; wings fuscous ; abdomen clavate. Female. — Head brownish-ferruginous, polished; face, inner orbits, clypeus, mandibles except extreme tips, lower half of the cheeks and the palpi, pale yellowish ; antennae, slender, filiform, nearly three-fourths the length of the body, pale fulvous, blackish at the base, basal joint beneath ferruginous. Thorax smooth and polished, brownish-ferrugi- nous; lower margin of the prothorax, anterior part of the pleura, the pectus, the tegulae and a spot beneath, yellow ; scutellum prominent, yellowish-ferruginous, with a yellow spot at tip ; postscutellum tinged with yellowish ; metathorax polished, the elevated lines sharply defined, the central area rather small, elongate. Wings ample, fuscous, paler at tips ; nervures fuscous, costa and stigma yellowish ; areolet triangu- lar, oblique. Legs slender, pale yellowish ; the four anterior femora exteriorly, the posterior femora entirely, and their tarsi, ferruginous ; extreme base and apex of the posterior tibiae, dusky. Abdomen cla- vate, smooth and polished, incurved at tip, pale ferruginous; narrow apical margins of the second and third segments above, broad apical margin of the fourth, and nearly the whole of the remaining segments yellowish-white ; basal segment with a stout tubercle on each side near the base and a smaller one on each side about the middle. Length 4 2 lines; expanse of wings 7 4 lines. Two specimens. 264 [April 3. Cteniscus abdominalis. n. sp. Black: face, mouth, lower part of cheeks, pectus, tegulse and scutellums, yel- lowish; apex of antennfe, most of legs and abdomen ferruginous, the latter yellowish at tip ; wings hyaline. Female. — Head black, shining, densely and minutely punctured, thinly pubescent; face, inner orbits not reaching the summit of the eyes, clypeus, lower part of the cheeks, mandibles except extreme tips, and the palpi, pale yellowish ; antennae nearly as long as the body, fulvo-ferruginous, the basal half above and the base beneath, dusky. Thorax black, polished, slightly pubescent ; lower margin of prothorax, two spots on the anterior margin of pleura, pectus, tegulae and a short line beneath, yellowish ; scutellum not prominent, yellowish, pubescent; postscutellum yellow ; metathorax black, shining, subobsoletely rugose, the elevated lines well defined, the central area large, quadrate. Wings hyaline, iridescent ; nervures and stigma fuscous; areolet triangular. Legs yellow; the four anterior femora tinged with ferruginous; the pos- terior coxae ferruginous, yellowish at tips, their femora rufo-ferruginous, black at extreme base and apex, their tibiae and tarsi blackish, the for- mer ferruginous about the middle. Abdomen clavate, smooth and shin- ing, pale ferruginous or honey-yellow ; narrow apical margins of the second and third segments, and most of the remaining segments ob- scure yellowish. Length 4J lines; expanse of wings 7 lines. One specimen. Genus TROGTJS. Grav. 1. Trogus flavipennis, Cresson. Trogus flavipennis, Cresson. Proc. Ent. Soc. Philad. iii, p. 287. One specimen. 2. Trogus flavitarsis, n. sp. Black; face white ; tarsi yellow ; wings fuliginous. Male. — Black, opaque, very closely and finely punctured ; the face, clypeus except anterior middle, labrum, and a spot on mandibles, whitish ; palpi pale, blackish at base ; face narrow ; antennae as long as the body, entirely black, very slender at tips, the joints prominent on their mid- dle, giving the antennae a subserrate appearance. Thorax densely punc- tured, the dorsal lines of the mesothorax well impressed ; scutellum obtusely elevated, with a very deep excavation in front bordered on each side by a sharply defined carina ; metathorax coarsely rugose, the elevated lines rough and well defined, the central area moderate, quad- rate ; on each side of the metathorax posteriorly a short obtuse, com- pressed tubercle ; tegulae shining black. Wings fuliginous, the ante- rior pair with an obscure violaceous reflection, the posterior pair some- 18(35.] 26.') what iridescent; nervures black; areolet 5-angular. or subtriangular. Legs long, black ; the femora tinged with fuscous ; the tibiae yellowish- fuscous, the anterior pair palest ; all the tarsi yellow, the posterior pair dusky at base. Abdomen black ; the basal segment depressed, strongly arcuated, bilineated and punctured ; apical segments smooth and shin- ing. Length 6 lines; expanse of wings 10 J lines. One specimen. Genus CRYPTUS, Fabr. 1. Cryptus robustus, Cresson. Cryptus robustus, Cresson, Proc. Ent. Soe. Philad. iii, p. 289. Ten 9 specimens. This fine species varies by the basal joint of the antennae being sometimes entirely black, by the wings being sometimes fuscous with a violaceous reflection, and by the apex of the abdomen being often more or less varied with bright rufous. I omitted to men- tion, in the description of this species, that the second, third and fourth joints of the four anterior tarsi are short, triangular, dilated and spinose, which seems to be an important character of this species. 2. Cryptus proximus, Cresson. Cryptus proximus, Cresson, Proc. Ent. Soc. Philad. iii, p. 290. Two 9 specimens. One specimen has the wings varied with fuscous, while those of the other specimen are uniformly fuliginous. The tarsi are slender and simple. 3. Cryptus luctuosus. Cresson. Cryptus luctuosus, Cresson, Proc. Ent. Soc. Philad. iii, p. 290. One $ specimen. 4. Cryptus nubilipenais, Cresson. Cryptus nubilipennis, Cresson, Proc. Ent. Soc. Philad. iii, p. 291. One 9 specimen. 5. Cryptus crassicornis, Cresson. Cryptus crassicornis, Cresson, Proc. Ent. Soc. Philad. iii, p. 292. Six % specimens. This may be the male of 0. robustus. 6. Cryptus excelsus, Cresson. Cryptus excelsus, Cresson, Proc. Ent. Soc. Philad. iii, p. 293. Six 9 , one S , specimens. 7. Cryptus ultimus, Cresson. Cryptus ultimus, Cresson. Proc. Ent. Soc. Philad. iii, p. 305. One 9 specimen Genus PHYGADETJON, Grav. Phygadeuon montanus, Cresson. Phygadeuon montanus, Cresson, Proc. Ent. Soc. Philad. iii. p. 309. One 9 specimen. 266 [April Genus PHYTODIETUS, Grav. Phytodietus pleuralis. n. sp. Black ; face, mouth, base of antennae beneath, line on each side of mesotho- rax, most of thorax beneath, scutellums, and apical margins of abdominal seg- ments, white; most of legs pale ferruginous, posterior tibise and tarsi blackish, the former with a broad whitish annulus ; wings hyaline. Male. — Black, shining; face, frontal orbits, clypeus. mandibles ex- cept tips, lower half of the cheeks, and the palpi, white; antennae as long as the body, slender, brownish, the two basal joints beneath, and the third and fourth joints exteriorly, whitish. Thorax black, polished ; mesothorax with a broad white line on each side, dilated and recurved anteriorly; the tegulae, one or two spots beneath, lower margin of the prothorax. the pectus entirely, and the pleura beneath and extending up on each side anteriorly, white ; a minute spot on each side of the scutellum at base, a spot on its tip, the postscutellum, and the posterior margins of the spaces on each side, also white ; metathorax entirely black, and covered with very fine transverse striae. Wings hyaline, beautifully iridescent; nervures fuscous, pale yellowish at base; areolet triangular, oblique. Legs : the four anterior coxae and trochanters, second joint of posterior trochanters, and the four anterior femora, tibiae and tarsi in front, white, tinged with pale ferruginous behind; posterior coxae, first joint of their trochanters and their femora except extreme tips, pale ferruginous; their tibiae and tarsi black, the former with a broad annulus about the middle, and the latter at extreme base, whitish. xVbdomen black, polished; the apical margin of all the seg- ments with a narrow white fascia, broader on the extreme sides. Length 3 lines: expanse of wings 5* lines. One specimen. Genus MESOCHORUS, Grav. Mesochorus agilis, n. sp. Black ; most of mandibles and tegulae, yellow; clypeus, legs, and band on abdomen, dull luteous ; wings hyaline. Female. — Black, polished, clothed with a short, fine, pale sericeous pubescence; most of clypeus, extreme lower portion of the cheeks, mandibles except tips, and the palpi yellowish, the two latter paler ; antennae longer than the body, very slender, brown-black. Thorax shining black; tegulae and a spot before, pale yellowish ; metathorax shining, the elevated lines not well defined, the central area very elon- gate. Wings very large and ample, hyaline, iridescent; nervures pale fuscous, yellowish at base, as well as the costa and stigma ; areolet rather large, rhomboidal. Legs obscure luteous, posterior coxae fuscous, tips of their tibiae and their tarsi dusky. Abdomen piceous, polished ; 1865.] 267 apical margin of the second segment and the whole of the third, ob- scure luteous; venter stained with yellowish ; ovipositor short. Length 3i lines; expanse of wings 7 lines. One specimen. Genus GLYPTA, Grav. Glypta varipes, n. sp. Black ; legs ferruginous, posterior tibise and tarsi black, tbe former lined with whitish ; wings subhyaline. Female.- — Black shining, closely and finely punctured; face with a slight swelling on the middle ; labrum testaceous ; antennae two-thirds the length of the body, piceous, brownish at tips; tegulae and a dot before yellowish-white. Wings subhyaline, faintly tinged with fuligi- nous, somewhat iridescent ; nervures fuscous, yellowish at base, costa and stigma pale fuscous. Legs, including the coxae ferruginous, the two anterior pairs tinged with yellowish, their tarsi varied with dusky ; posterior tibiae and tarsi blackish, the former with a broad whitish line on the outside, not reaching the tips but interrupted near the base, in one specimen this line is obscurely defined ; joints of the tarsi whitish at base. Abdomen black ; venter yellowish ; ovipositor about as long as the body. Length 3$ — 4J lines; expanse of wings 6 — 7 lines. Two specimens. Genus LAMPRONOTA, Haliday. Lampronota montana, n. sp. Black; abdomen and legs, except base, rufous ; wings fuliginous : ovipositor as long as the body. Female. — Black, finely and very closely punctured ; labrum and mandibles rufo-piceous ; antennae two-thirds the length of the body, piceous, paler towards the tips ; tegulae piceous ; scutellum convex ; metathorax densely punctate, with a single, sharply defined, transverse, arcuated carina behind the middle. Wings fuliginous, with a deep purplish reflection ; nervures and stigma black ; areolet small, trian- gular and petiolated. Legs rufous; the coxae and trochanters, and sometimes the posterior tibiae and tarsi, black. Abdomen rufous ; the first segment, except apical margin, black; extreme sides of the second and third segments sometimes blackish ; ovipositor as long as the body, rufous, valves black. Length 4| — 6 lines; expanse of wings 7$ — 9i lines. Eight specimens. Genus PIMPLA, Fabr. 1. Pimpla tenuicornis, n. sp. Black ; legs except hind tibise and tarsi, ferruginous ; hind tibise with a pale annulus near the base; antennse long and very slender; wings fusco-hyaline. Female. — Black, polished; palpi pale fuscous; antennae three-fourths 268 [April the length of the body, very slender and of equal thickness throughout, brownish, basal joint swollen and black. Thorax smooth and polished ; metathorax indistinctly sculptured, with an elongate-subquadrate cen- tral area; tegulae piceous. Wings fusco-hyaline, with a slight violet reflection ; nervures and stigma black, the latter with a pale spot at base ; areolet rather small, triangular and somewhat oblique. Legs stout, pale ferruginous ; the anterior coxae and the posterior tibiae and tarsi blackish, their tibiae with a small pale annulus near the base. Abdomen robust, broad, recurved and truncate at tip; entirely black; the four basal segments very closely punctured, except their apical margins which are smooth and shining, as well as the apical segments entirely ; ovipositor nearly as long as the abdomen, stout, rufo-piceous. valves short and black. Length 4f lines; expanse of wings 7i lines. One specimen. 2. Pimpla pedalis, n. sp. Black; legs except hind tibiae and tarsi, rufous ; wings subhyaline. Male. — Black, very closely puuctured; palpi fuscous; antennas fili- form, rather slender, brown-black, three-fourths the length of the body. Thorax shining, not distinctly punctured; metathorax finely punctured, central area not distinct. Wings obscure hyaline, with a bluish-violet gloss; nervures and stigma black; areolet triangular, rather oblique. Legs stout, dull rufous ; anterior coxaa, and the posterior tibiae and tarsi, blackish. Abdomen elongate, entirely black, closely punctured. Length 5 lines; expanse of wings 8£ lines. One specimen. May be the % of P. tenuicomis. 3. Pimpla fulvescens, n. sp. Yellowish-fulvous, polished ; face, tegulae and scutellum yellow; wings yel- lowish-hyaline. Male. — Bright yellowish-fulvous, polished, impunctured; face flat, yellow; eyes large and prominent; clypeus, mandibles, palpi and cheeks, pale yellowish-fulvous, tips of the mandibles blackish ; antennae stout, filiform, two-thirds the length of the body, dull ferruginous, the two basal joints beneath yellowish. Thorax : mesothorax somewhat rugose in front, with a blackish depression on each side, and longitudinal, sub- obsolete, pale brownish stain on each side of the middle ; prothorax and pleura with several irregular fuscous spots ; scutellum rather pro- minent, yellowish, with the excavation in front blackish; postscutellum also yellowish as well as the tegulae and a spot beneath ; metathorax smooth and polished, stained with fuscous at base. Wings ample, yel- lowish-hyaline, with a slight brassy gloss ; nervures blackish, honey- yellow at base as well as the costa and stigma; areolet subtriangular 1865.] 269 and oblique. Legs stout, pale yellowish-fulvous, the posterior pair more deeply tinged with fulvous. Abdomen elongate, slightly dilated and depressed near the tip, smooth and highly polished ; basal segment with a rather deep channel down the middle, and the apical segment with a slight central groove. Length 4f lines ; expanse of wings 9 lines. One specimen. Genus EPHIALTES. Grav. Ephialtes occidentalis, n. sp. Black : tegulse and legs, except hind tibiae and tarsi, pale ferruginous ; wings hyaline. Female. — Deep black ; head smooth and polished ; palpi pale; an- tennas black (apical half wanting). Thorax polished, clothed with tine pale pubescence ; mesothorax smooth, somewhat rugose on the disk behind the middle lobe, which is prominent ; pleura feebly punc- tured ; scutellum polished ; metathorax minutely rugose, with a rather deep central longitudinal channel, bordered on either side by a well- defined carina which diverges and becomes obsolete before reaching the tip ; tegulae yellowish-ferruginous. Wings hyaline, faintly tinged with yellowish, and stained with honey-yellow at extreme base, iride- scent; nervures and stigma black, the former honey-yellow at base; areolet triangular. Legs long, pale ferruginous ; posterior tibiae and tarsi blackish ; middle tarsi dusky. Abdomen elongate, slender, cov- ered with very minute, dense, transverse strife; five basal segments long, narrow, subequal, each being about three times longer than wide, the sixth segment about half the length of the fifth, basal segment de- pressed on the disk, with two central and a lateral, well-defined carime, the base broadly excavated ; second segment with an oblique deeply impressed line on each side ending in a depression on the lateral mid- dle ; third and the following segments with a longitudinal depression on the lateral middle; extreme apex of the segments shining, promi- nent on the disk and excavated on each side ; ovipositor very slender, ferruginous, about half again as long as the body, valves black, very finely pubescent. Length 14t> lines, of ovipositor 22 lines; expanse of wings lf>2 lines. One specimen. Closely allied to E. manifestator Linn. (Europe), but the hind legs, segments of the abdomen, and the ovipositor, are much longer and the abdomen is much narrower than in that species ; the coloration is much the same in both species. Genus RHYSSA, Grav. 1. Rhyssa Nortoni, Cresson. Rhyssa Nortoni, Cresson, Proc. Ent. Soc. Philad. iii, p. 317. One $ specimen. 270 [April 2. Rhyssa persuasoria, Linn. Ichneumon persuasoriu.s, Linn. Faun. Suec. n. 1593. DeGeer. Mem. i, pi. 36, fig. 8. Sulzer, Gesch. pi. 26, fig. 12. Gmel. Syst. Nat. 2618, n. 16. Panz. Faun. Germ. p. 19. pi. 18. Pimpla persuasoria, Fabr. Syst. Piez, p. 112. Rhyssa persuasoria, Grav. Ichn. Eur. iii, p. 267. Steph. Brit. Ent. Suppl. p. 2 pi. 39, tig. 1 % . Cresson, Proc. Ent. Soc. Philad. iii, p. 318. One 9 , two % specimens. We have several % and 9 specimens of this species from Canada. Genus METOPIUS. Panz. 1. Metopius rufipes, n. sp. Black: legs rufo-ferruginous ; sides of the face, aline before and a spot be- neath the wings, scutellum, spot on each side of metathorax and apical margins of abdominal segments, yellow : antennae thickened beyond the middle ; wings yellowish-fuscous, hyaline at tips. Female. — Black, opaque, coarsely punctured; face yellow, depressed ou the middle and surrounded by a sharply defined carina, forming somewhat of a shield-shaped enclosure and which encloses a large ob- long black mark, with a longitudinal carina down the middle, covered with fine punctures, interspersed with large deep punctures; anterior margin of the clypeus cariuated and somewhat recurved ; labvum and mandibles clothed with pale setae, the latter rufo-piceous about the middle; palpi testaceous ; antenna? about as long as the head and tho- rax, subclavate, being gradually thickened beyond the middle, blackish above, dull ferruginous beneath. Thorax closely and roughly punc- tured, slightly pubescent; a line before and a spot beneath the anterior wings, yellow; prothorax striated on the sides; scutellum flat, quad- rate, bright yellow, with a few deep scattered punctures, the posterior margin deeply emarginate, so that the lateral angles are prominent and spiniform, but not acute, at base there is a deep transverse excavation which is striated and black, the sharp carina on each side is yellow and continues to the tip of the scutellum, which has also a well impressed line down the middle; postscutellum and metathorax black, the latter is rugose, with a smooth polished space on each side at base enclosed by a well defined carina, on each side, just above the middle coxae, a large rounded yellow spot, as well as a dot above it; tegulae black. Wings ample, yellowish-fuscous, with a slight brassy gloss, the apex beyond the areolet hyaline ; nervures fuscous, the costa and stigma honey-yellow; areolet large, and subrhomboidal. Legs rufo-ferruginous, short, the posterior pair very robust. Abdomen black, depressed, broader and incurved at tip, deeply, closely and coarsely punctured ; apical half of the three basal segments, and the apical third of the remaining seg- ments, bright yellow ; basal half of the first and second segments tinged 1865.] - 271 with obscure ferruginous ; beneath black, stained with yellowish to- wards the base. Length G lines; expanse of wings 11 lines. One specimen. This fine species may be readily distinguished by the subclavate antennas, the red legs, and broad yellow fasciae of the abdomen. 2. Metopius pulchellus, n. sp. Ferruginous ; back of head, incisures of thorax and abdomen, blackish ; face, tegulse and a line before, two lines on pleura, scutellums, sides of metathorax, and the first and most of the third and following segments of abdomen, bright yellow; wings varied with fuscous, violaceous at tips; antennae long, filiform. Female. — Head blackish ; a transverse line behind the ocelli, a spot on lower part of cheeks, the labrum and mandibles, ferruginous; fron- tal orbits and face bright yellow, the latter finely punctured and flat- tened on the middle, which is surrounded by a sharply defined carina, forming a perfect shield-shaped enclosure, on the middle there is a lon- gitudinal ferruginous stain but no vestige of a carina as in the preced- ing species ; between the antennas there is a short, yellow, very promi- nent ridge ; palpi ferruginous, the second joint very much dilated and yellowish ; antennas more than half the length of the body, subfiliform. slender at tips, the basal half ferruginous, the remainder dusky, basal joint beneath tinged with yellowish. Thorax closely and deeply punc- tured, ferruginous; anterior part of the mesothorax and the sutures of the thorax beneath, blackish ; upper margins of the prothorax, an elon- gate spot on the anterior margin of the pleura, the tegulas and a short line beneath, and a dot on each side of the pleura just above the mid- dle coxae, yellow ; scutellum flat, quadrate, deeply punctured, yellow, ferruginous at base, the apical margin deeply emarginate, the lateral angles very prominent and acute, the lateral carinas sharply defined, yellowish at base and apex, the excavation in front deep and blackish; postseutellum yellow; metathorax punctured, ferruginous, with two confluent yellow spots on each extreme side, the lower one the largest, on the disk there are three approximate, well defined, longitudinal carinas, forming two elongate central areas. Wings varied with fus- cous, with a brassy gloss, the apical margins palest, the marginal cell darkest, with a deep violaceous reflection ; nervures fuscous, costa and stigma yellowish; areolet large, subrhomboidal. Legs moderately stout, ferruginous; tips of the middle coxas, spot on the posterior coxas at base above, the trochanters, tips of the femora, and four anterior tibiae and tarsi, yellow ; posterior tibiae and tarsi tinged with yellowish at base, dusky at tips. Abdomen depressed, broad and strongly incurved at tip, densely and coarsely punctured, the three basal segments rugoso- 272 [April punctate; extreme basal margins of the segments black; the second except extreme apical margins, and base of third segments ferruginous, the remainder bright yellow ; posterior margins sinuate, the basal seg- ment with two central carinae ; beneath dusky, varied with yellowish. Length 5 lines; expanse of wings 9 lines. One specimen. The colors of this lovely species are remarkably bright and distinct. Genus BASSTJS. Grav. 1. Bassus orbitalis, n. sp. Black; inner orbits, clypeus, mandibles, palpi, sides of mesothorax, tegulse, scutellums, anterior coxre, and broad annulus on posterior tibiss, white; wings hyaline; legs pale rufous. Female. — Black ; inner orbits, ending in a confluent spot beneath the eyes ; clypeus, mandibles and palpi, white ; clypeus depressed, the basal margin prominent, the apex emarginate in the middle or bilobate; antenna? about half the length of the body, entirely black. Thorax closely punctured, the mesothorax shining; a broad line on each side of the mesothorax, tegulas, a spot before and a Hue beneath, and a spot on each side of the pleura just behind the anterior coxae, white; scu- tellum with a broad white mark on its middle, dilated at tip; postscu- tellum with a white transverse line ; metathorax dull black, rugose, pubescent, the elevated lines tolerably well defined. Wings ample, hyaline, beautifully iridescent; nervures and stigma blackish, the costa, base of stigma and nervures at base of wings, yellowish. Legs pale rufous, the anterior pair tinged with yellowish in front ; anterior coxae and trochanters, white ; posterior tibiae and tarsi black, the former with a broad white annulus about the middle. Abdomen black, depressed ; the three basal segments densely punctured and opaque, with a deeply impressed transverse line behind the middle ; apical segments polished, and, except the fourth segment, impunctured ; first segment narrower than the thorax, much depressed, with two well defined longitudinal carina? at base; extreme base of second segment deeply incised and crenulated. Length 3> lines; expanse of wings 6 lines. One specimen. 1. Bassus maculifrons, n. sp. Black ; a spot on each side of face, a large spot on the middle, clypeus, man- dibles, angular mark on each side of mesothorax, tegulae, scutellum, and spot on each side of second and remaining abdominal segments, whitish ; legs pale rufous; wings hyaline, iridescent. Female. — Black, shining ; a large quadrate spot on the middle of the face, a spot on the lower orbits on each side of clypeus. the clypeus, mandibles and palpi, yellowish-white; clypeus profoundly impressed on 1865.] 273 each side, the basal margin prominent, the apical margin subtruncate and brownish ; antennae more than half the length of the body, entirely black. Thorax shining, closely and finely punctured ; mesothorax with a broad, white hooked line on each side ; tegulas, a spot before and a line beneath the anterior wing, a large quadrate spot on the scutellum covering nearly its entire surface, and a transverse line on the post- scutellum, white ; metathorax finely and densely rugose, without ele- vated lines. Wings ample, hyaline, beautifully iridescent; nervules pale fuscous, whitish at base, as well as the costa and a spot at the base of the stigma. Legs pale rufous; anterior coxae and trochanters yel- lowish-white ; tips of the posterior tibiae and their tarsi entirely, duskv. Abdomen shining black, very closely and minutely punctured and sub- depressed at base, apex subcompressed; on each lateral apical corner of the second and following segments, a rather large whitish spot. Length 3 lines ; expanse of wings G lines. One specimen. Genus BANCHUS, Fabr. 1. Banchus superbus. n. sp. Black ; face, orbits, antennae beneath, hooked mark on each side of mesotho- rax in front, a transverse line on its disk, a large elongate mark on the pleura, scutellum, apex and spot on each side of metathorax, most of legs, and broad apical margins of abdominal segments, bright yellow ; wings yellowish-hya- line. Male. — Black, shining; face — except a central longitudinal black line, dilated at base of clypcus with a black dot on each side of it. — the clypeus, frontal orbits — confluent with a line that passes in front of the ocelli and enclosing a large black spot behind the insertion of each antenna, — broad outer orbits, and the mandibles except extreme tips, all bright yellow ; palpi pale, varied with fuscous; clypeus with a deeply impressed line down its middle; antennae as long as the body, slender, curled at tips, black above, yellowish beneath, except at extreme apex, basal joint bright yellow beneath. Thorax closely punctured ; a large hooked mark on each side of mesothorax anteriorly, a small transverse line on its disk, emarginate behind, tegulae, a transverse line beneath, a large elongate mark on each side of the pleura anteriorly, a sinuate line on the upper margin of the prothorax, a spot on each side of the collar, and a spot in front of each anterior coxa, emarginate before, all bright yellow ; scutellum prominent convex, polished, bright yellow, with a very small, acute, dusky tubercle on its disk ; postscutellum also bright yellow ; the carinae on each side of the mesothorax behind, and on each side of both scutellums, yellowish ; metathorax very closely and finely punctured, its posterior face excavated, abrupt and bright 274 [April yellow, almost confluent with a large bright yellow spot on extreme side. Wings rather ample, yellowish-hyaline, with a slight purplish- iridescent reflection ; areolet rhomboidal. Legs long and slender, bright yellow; the posterior coxae except the tips beneath, basal half of their trochanters, all the femora behind, except extreme base and apex, and the apical third of the posterior tibiae, black ; posterior tarsi varied with dusky. Abdomen subsessile, arcuated, fusiform, subcompressed, black, smooth and polished ; each segment above with a bright yellow apical band, very broad on the three basal segments and narrow on the others, those on the first and second segments strongly sinuate anteriorly, and that on the fourth segment dilated on the middle anteriorly ; venter compressed, black, banded with yellow. Length 5$ lines; expanse of winss 11 lines. One specimen. 2. Banchus spinosus, n. sp. Black; face, orbits, clypeus, mandibles, basal joint of antennae beneath, two spots on front of mesothorax, two lines on pleura, scutellums, metathorax be- hind, legs and bands on abdomen, yellow or orange-yellow ; scutellum with a long acute spine; wings yellowish-hyaline. Male. — Black, shining, very closely punctured ; face, except a broad line down the middle, frontal orbits, a dot on each side of anterior ocellus, a line on the outer orbit, clypeus except basal margin, and most of the mandibles, yellowish; clypeus excavated on the disk; palpi blackish ; antennae nearly as long as the body, curled and slender at tips, black, the basal joint beneath yellow. Thorax : a triangular spot on each side of the mesothorax anteriorly, tegulae, and a line beneath, a narrow line ou the anterior margin of the pleura, and a spot beneath the base of the posterior wing, yellow ; scutellum prominent, polished, yellow, with a long acute blackish spine on the disk, pointing behind ; postscutellum also yellow ; metathorax finely and densely sculptured, its posterior face yellow, abrupt, bounded above and on the sides by a sharply defined carina. Wings ample, yellowish-hyaline, with a brassy gloss, and a slight iridescent reflection; nervures and stigma fuscous; areolet moderate, subtriangular. Legs long, especially the posterior pair, orange-yellow; the coxae black, the two anterior pairs yellow in front, the posterior pair with two short yellowish lines on the outside ; tips of the posterior tibiae and their tarsi except base, dusky or black- ish. Abdomen strongly arcuated, broad and compressed, black, the apical margins of the four basal segments broadly yellow, more or less tinged with orange, a spot on each side of the fifth and sixth and most of the seventh segment, of the same color ; basal segment narrow, with 18G5.] 275 a stout tubercle on each side before the middle; venter compressed, blackish, stained with yellowish at base and apex. Length ol lines; expanse of wings Lli lines. One specimen. Very distinct from the preceding species, and is at once distinguished by the long acute spine on the scutellum. Genus EXETASTES. Grav. 1. Exetastes niger, n. sp. Black, shining; wings fuliginous; legs sometimes reddish. Fnnale . — Deep black, head and thorax opaque, closely and finely punctured; antennae longer than the body, slender, especially at tips, entirely piceous-black ; scutellum convex, rather prominent, densely and deeply punctured ; metathorax finely rugose without elevated lines. Wings ample, uniform dark fuliginous, with a violaceous reflection ; nervures and stigma black ; areolet rather large, subtriangular, oblique and subpetiolated. Legs long, rather slender, black, the two anterior pairs more or less honey-yellow, sometimes dusky, the posterior femora sometimes dusky, sometimes stained with rufous, and the apical joints of their tarsi sometimes testaceous. Abdomen subsessile, deep black, smooth and polished, sometimes strongly arcuated, rather slender and depressed at base and broad and subcompressed towards the tip which is truncate ; first segment with a slight prominence on each side of the middle and a slight longitudinal depression on the disk ; ovipositor very short, rufous, valves thickened, blackish, whitish on the inside. Length 6 — 6$ lines; expanse of wings 11 — Hi lines. Male. — Resembles the female, with the wings not so deeply fuligi- nous, sometimes fuscous and darker along the nervures ; the legs also vary in coloring, one specimen has the four anterior femora, tibiae and tarsi, and the posterior femora, rufous ; the abdomen is not so broad and subcompressed towards the apex; otherwise there seems to be no difference. Length 6 — 7 lines; expanse of wings 11 — 12 lines. Two 9 j f° ur £ specimens. 2. Exetastes flavipennis, n. sp. Black, shining: wings deep yellow with the apical margins broadly fuli- ginous. Female. — Deep black ; head and thorax subopaque, very closely and finely punctured, rather thinly clothed with short black pubescence; antennae three-fourths the length of the body, slender, piceous; thorax and uietathorax as in the preceding species ; tegulae piceous. Wings rather ample, deep yellowish-hyaline, the apical margins broadly fuli- ginous ; nervures and stigma honey-yellow ; areolet as in the preceding species. Legs black, sometimes tinged with fuscous, the anterior pair 276 [April more or less testaceous in front. Abdomen deep black, smooth and polished, shaped as in the preceding species. Length 6 — 11 lines; expanse of wings 11 — 111 lines. Five specimens. Easily recognized by the deep yellow wings, broadly margined at tip with fuliginous. 3. Exetastes cseruleus, n. sp. Deep blue, polished; antenna; black ; wings fuscous; legs pale rufous. Female. — Brilliant deep blue, with a violet shade in certain lights, smooth and polished ; head and thorax delicately punctured ; antennae nearly as long as the body, slender, black; mesothorax and scutellum rather conspicuously tinged with purple, more distinctly punctured than the head; metathorax densely punctured, smooth about the base above, the dorsal middle has a slight longitudinal prominence, which is faintly sulcate ; tegulae black. Wings deep fusco-hyaline. darker along the nervures, with a rather strong metallic and iridescent reflec- tion ; nervures black; areolet as usual Legs elongate, pale rufous ; the coxte and trochanters blue ; extreme tips of posterior tibiae and basal joint of their tarsi, blackish. Abdomen suhfalcate, broad and compressed at tip, brilliant deep blue with a slight violet reflection, smooth and highly polished ; ovipositor very short, pale rufous. Length 5j lines; expanse of wings 82 lines. One specimen. A very handsome species, with the colors remark- ably brilliant. 4. Exetastes abdominalis, n. sp. Blue black; abdomen rufous; wings fusco-hyaline. Female. — Slender, blue-black, polished, delicately punctured; an- tennae more than half the length of the body, slender, black or piceous- black ; metathorax finely rugose. Wings fusco-hyaline, sometimes fuli- ginous with a strong violaceous reflection ; nervures black ; areolet as usual. Legs long, black, sometimes more or less tinged with piceous, the two anterior pairs in front, and the apical joints of the posterior tarsi more or less, tinged with testaceous ; posterior coxae very robust, subglobose, sometimes tinged with rufous at base beneath. Abdomen long and rather slender, pale rufous, sometimes bright saffron-yellow, smooth and polished, the basal half depressed, the apical half broad and subcompressed ; the basal segment with a stout tubercle on each side before the middle, the extreme base often blackish; ovipositor short, pale rufous, valves black, whitish within ; venter more or less stained with yellowish, especially at base. Length 5 \ — 7 lines ; ex- panse of wings 9 — 10 lines. Six specimens. 1865.] 277 Var. a. — 9 . Head and thorax more deeply tinged with blue and having a more or less violet reflection ; the legs, except coxae and tro- chanters, rufous, the posterior tibiae and tarsi more or less dusky; in one specimen the posterior tarsi has the third and fourth joints bright yellow ; in two specimens the basal segmeut of the abdomen is entirely blue-black ; the wings have a strong violaceous reflection. Same size. Three specimens. This may be a distinct species, in which case it may be named E. rufipes. There is, however, no difference between the two, except coloration, principally of the legs. 5. Exetastes affinis, n. sp. Black: abdomen except extreme base, rufous ; wings fuliginous. Female. — Closely resembles E. abdominalis, but is more robust, more deeply punctured, the color of the head and thorax is deep black, with- out any tinge of bluish, so conspicuous in the preceding species ; the punctures of the thorax are very close and fine, but distinct; the meta- thorax is finely and very densely rugose, opaque ; the legs are entirely deep black, except the anterior pair in front where there is a tinge of obscure testaceous ; the wings are uniform dark fuliginous, the anterior pair with a strong violaceous reflection, while the posterior pair is iri- descent ; the abdomen is short, much more robust, pale rufous, with the basal half of the first segment and the extreme tip of the venter, black. Length 6 lines; expanse of wings 10i lines. One specimen. 6. Exetastes flavitarsis, n. sp. Black ; face, two spots in front of mesothorax, tegulse, four anterior legs and posterior tarsi, yellow ; posterior femora and tibire, and the abdomen except base, ferruginous; wings hyaline. Male. — Black, shining, minutely punctured, clothed with a very short palish pubescence ; face, orbits, interrupted in front and behind, clypeus, mandibles except tips, and the palpi, yellow ; antennas about as long as the body, black or brown-black, the basal joint beneath yel- low ; in one specimen there is an obscure pale annulus about the middle. Thorax : line on each side of the collar, a spot or hooked line on each side of the mesothorax in front, sometimes much reduced or entirely wanting, the tegulae and a line beneath, yellowish ; scutellum at tip and the postscutellum rufo-piceous ; in one specimen the scutellum has an obscure yellowish stain. Wings hyaline, iridescent, sometimes very faintly tinged with yellowish-fuscous ; nervures fuscous, yellowish at base ; areolet shaped as usual, but scarcely subpetiolated. Legs slender, the posterior pair v^ery long ; the two anterior pairs yellow, more or less tinged with honey-yellow, their coxae black above and yellow beneath ; 278 [April posterior coxae black, with a more or less distinct broad yellow line beneath and sometimes a dull rufous line or spot above; posterior femora rufous, blackish at base and apex, their tibiae yellowish-ferruginous, with the apical half black, their tarsi yellow, dusky or blackish at base and apex. Abdomen long, slender and subcylindrical, smooth and shin- iug, pale rufo-ferruginous; the basal segment except tip, black; some- times there is a small rufous spot on the dorsal middle of this segment, and in one specimen the segment is ferruginous except the extreme base ; there is also a stout tubercle on each side about the middle. Length 4J — 5J lines; expanse of wings 7? — 8£ lines. Six specimens. 7. Exetastes consimilis. n. sp. Black; face, except a central line, hooked line on each side of raesothorax. tegulse, and most of legs, yellow; abdomen except base, and posterior femora, ferruginous : wings pale yellowish-hyaline. Male. — Closely resembles E. flaoitarsis, but is larger; the face has a black line down the middle and a black dot on each side just above the clypeus; the orbits are not yellow except for a short distance on each side of the antennae, the mandibles are yellow, with the base and apex black ; palpi testaceous ; the antennte are about three-fourths the length of the body, and entire/// black ; the thorax is more dull, the mesothorax has a broad hooked line on each side, the tegulae has a yel- low spot in front, as well as a line beneath ; the scutellum and postscu- tellum are entirely black ; the metathorax is finely rugose, with a well- defined, trausvei*se, arcuated carina near the base ; the wings are faintly pale yellowish-hyaline, iridescent, the areolet smaller, triangular and petiolated ; the legs are yellow, the four anterior femora, tibiae and tarsi very slightly tinged with honey -yellow ; the middle coxae above and the posterior pair entirely, are black ; the posterior femora are fer- ruginous, their tibiae yellowish, dusky at tips as well as the whole of their tarsi; the abdomen is rather longer, more cylindrical, the basal segment is distinctly punctured and excavated at base, without distinct lateral tubercles, while the second segment has a stout tubercle on each side near the base; the basal segment except apex is blackish, and the seventh segment has a dusky stain on each side. Length 6 lines; ex- panse of wings 9 lines. One specimen. 8. Exetastes fascipennis, n. sp. Ferruginous ; incisures of thorax and antennae, black, the latter with a yel- lowish annulus; clypeus yellowish; wings yellowish-hyaline, with a dusky band beyond the middle. Female. — Uniform ferruginous, face paler ; inner orbits obscurely 1865.] 279 and the clypeus, yellowish ; antennas more than half the length of the body, black, the basal joint ferruginous, a more or less distinct yellowish aunulus about the middle. Thorax very closely and minutely punc- tured; the pleura beneath much depressed and black just behind the base of the anterior legs ; spaces on each side of the scutellum. and the sutures of the metathorax. black ; scutellum rather prominent, the ca- rinas on each side in front sinuate and blackish; metathorax very closely punctured, with a central longitudinal line, well impressed at base, but becomes obsolete before reaching the tip; tegulae pale ferruginous. Wings yellowish hyaline, with a brassy and iridescent reflection; the apical margins, and a broad transverse band just before the middle, pale fuscous, the transverso-medial nervure margined with fuliginous ; nervures fuscous, ferruginous at base, as well as the costa and stigma except tip ; areolet subtriangular, subpetiolated. Legs color of the body, the two anterior pairs, and the posterior tarsi tinged with yellow- ish, the posterior tibiae blackish at tips. Abdomen elongate, subcylin- dric, subdepressed, smooth and shining, paler at base and apex, the latter subcompressed and tinged with yellowish ; venter varied with yellow at base ; ovipositor short, rufo-piceous, valves black, pale at tips. Length 4.] — 6 lines; expanse of wings 7i — 9 lines. Five specimens. 9. Exetastes scutellaris, n. sp. Fulvo-ferruginous ; antennae, sutures of thorax, hind legs in part, and spots on venter, blackish; face and scutellum, yellow; wings fusco-hy xline, costa and stigma yellowish. Female. — Bright fulvo-ferruginous, smooth and polisher . the head in front and the mouth, strongly tinged with yellowish ; the vertex with a dusky spot enclosing the ocelli; antennas dusky, paler beneath towards the base ; mesothorax tinged with yellowish, with three broad, longitudinal, dusky stripes, the central one entire, the lateral ones abbreviated before; most of tegulas and a line just beneath the anterior wings, yellow; scutellum prominent, bright yellow, sometimes with a slight tinge of ferruginous; postscutellum yellowish-fulvous; spaces on each side of the scutellums, a small stain on each side of the pleura anteriorly, and an oblique line beneath the posterior wings, blackish ; metathorax with a slightly impressed central longitudinal line. Wings uniform fusco-hyaline, somewhat tinged with yellowish, with a subvio- laceous reflection, the posterior pair iridescent ; nervures fuscous, pale at base, costa and stigma yellowish-fulvous ; areolet large, obliquely subrhomboidal. Legs color of the body, the two anterior pairs tinged with yellowish ; tips of the posterior femora, apical half of the tibiae, 280 [April and the basal joint of their tarsi, dusky. Abdomen sub fusiform, bright fulvo-femiginous, smooth and polished, broad and subeompressed to- wards the apex, in two specimens broad and subdepressed and more or less varied with dusky (probably from discoloration ) ; venter yellowish, spotted with dusky; ovipositor short, ferruginous, valves black, whitish within. Length -U — •">•] lines; expanse of wings 9 — 10 lines. Male. — Resembles the female but more slender ; the face is entirely bright yellow ; the fuscous spot on the vertex is larger and extends to the base of the antennae; the antennae are much longer and fusco-ferru- ginous beneath, dusky above, the basal joint beneath is yellowish; the anterior lateral margins of the mesothorax are broadly yellow ; most of the prothorax and the whole of the pleura, except two small ferrugi- nous spots, are blackish, as well as the extreme lateral and apical mar- gins of the metathorax ; the legs have more of a yellowish tinge ; the posterior tibiae are blackish, yellowish at base, their tarsi are yellowish, with the basal joint blackish; the abd mien is subcylindric and of a uniform bright fulvous color, with the venter tinged with yellowish. Length 6 lines; expanse of wings 10 lines. Five $ , one S , specimens. 10. Exetastes decoloratus, n. sp. Black; face, two lines on mesothorax, most of metathorax and legs, and the abdomen, obscure ferruginous; orbits and scutellum yellow ; wings hyaline. Male. — Head black, pubescent; face pale ferruginous ; orbits yellow; clypeus and spot on mandibles, yellowish-ferruginous ; palpi dusky ; antennae as long as the body, black, the basal joint beneath ferruginous. Thorax very finely punctured, opaque above, somewhat shining beneath ; two longitudinal lines on the mesothorax much dilated in front, a line over the collar, upper margin of the prothorax, a spot beneath the tegulae, all obscurely ferruginous ; scutellum rather depressed, shining, bright yellow; postscutellum piceous ; metathorax finely punctured, clothed with pale pubescence, black with the upper surface mostly fer- ruginous, divided down the middle by a black line; tegulae dull honey- yellow. Wings hyaline ; nervures fuscous, pale ferruginous at base ; areolet moderate, subrhomboidal, subpetiolated. Legs long and slender, ferruginous, the two auterior pairs more or less tinged with yellowish ; four anterior coxae above, base and apex of the posterior pair, their trochanters above, a line on all the femora above, and tips of the pos- terior pair, black or blackish ; posterior tarsi dull yellowish with the base and apex dusky. Abdomen rather short, narrow, arcuated, sub- depressed, smooth and polished, ferruginous, slightly clouded with dusky; extreme base of first segment black, with a stout tubercle on 1865.] 281 each side before the middle. Length 4 2 lines ; expanse of wings SI lines. ( hie specimen. 11. Exetastes obscurus, n. sp. Brownish-ferruginous, opaque, abdomen polished; antennas and sutures of the thorax, black; wings pale fusco-hyaline. Female. — Dull ferruginous, slightly tinged with brownish, opaque, very closely and minutely punctured, slightly pubescent; mandibles and palpi blackish ; antennae half the length of the body, black, the basal joint beneath dull ferruginous; sutures of the thorax and a sub- obsolete spot on the mesothorax in front, black ; scutellum rather pro- minent, somewhat shining ; metathorax densely punctured ; tegulae piceous. Wings pale fusco-hyaline, with a slight yellowish tinge ; ner- vures and stigma brownish ; areolet subrhomboidal, subpetiolated. Legs dusky ferruginous ; the two anterior pairs pale in front, dusky behind ; the four anterior coxas piceous above, as well as the posterior trochan- ters ; a line on the posterior femora above, and their tibiae and tarsi more or less, dusky. Abdomen robust, strongly arcuated, broader and subcompressed at tip, entirely rufo-ferruginous, smooth and polished ; ovipositor short. Length 5 lines; expanse of wings 9 lines. One specimen. CEKATOSOMA, nov. gen. Both/ moderately robust, smooth and highly polished. Head trans- verse ; cheeks convex ; the front depressed behind the anteunae ; mid- dle of the face rather prominent ; clypeus transverse, depressed, the basal margin carinate, apical margin more or less emargiuate ; man- dibles stout, depressed, of equal width from the base to the apex, the latter obtusely bifid ; palpi slender throughout. Antennae about half the length of the body in $ . longer in % . stout, of equal thickness ; basal joint short and subglobose, obliquely truncate exteriorly and re- ceiving the second joint, which is short and transverse; third joint minute ; fourth joint longest, as long as the fourth and fifth joints taken together, thickened towards the apex ; remaining joints subequal, be- coming very gradually shorter towards the tip ; terminal joints slightly longer than the two penultimate joints, obtusely pointed. Thorax robust, somewhat gibbous; pleura flattened; scutellum as in Banchus; metathorax short, convex, not abrupt behind. Wings ample, broad and obtusely rounded at tips, the neuration much as in Banchus, except that the cells are broader and less elongate ; the areolet is moderately targe and of a subtriangular rhomboidal shape. Legs moderately long, and robust; the posterior coxaa and trochanters very robust, the femora subcompressed, the posterior pair robust and rather short; tarsal claws 282 [April acute, with a small tooth near the tip, pulvilli moderate. Abdomen subsessile, elongate, fusiform, rather convex above with the apex pro- longed and acutely pointed in 9 , subdepressed and obtusely pointed in $ ; basal segment longer than wide, broader at tip ; the second, third and fourth segments slightly broader than long, each with a deep oblique groove on each side above, as in Gbjpta, those on the fourth segment obsolete ; ovipositor not exserted. This genus is closely allied to Banchits and Exctastes, but differs from both genera by the broader wings, the shorter and stouter legs, and the remarkable shape of the abdomen of the $ , which is elongate and gradually acuminate towards the tip, which is acutely pointed ; the obliquely grooved dorsum of the second and third segments seem to be a well marked character of this genus, and are similar to those of Glypta. Ceratosoma apicalis, n. sp. Ferruginous; most of head, sides of mesothorax. spot on pleura, scutelluras. apex of metathorax, posterior tibios and tarsi except tips, and bands on abdo- men, bright yellow; wings deep yellowish-fuscous, apex hyaline. Female. — Head yellow, the depressed space behind the antennae black ; middle of the face, clypeus, palpi, and two spots on the occiput, fulvous; tips of mandibles black; antennae about half the length of the body, entirely fulvous. Thorax fulvo-ferruginous ; lateral margins of mesothorax, broad in front and narrow behind, a transverse irregular mark on the disk, sometimes wanting, tegulao, a line beneath the base of anterior wing, a large spot on each side of pleura anteriorly, both scutellums, and the apical half or one-third of the metathorax, some- times reduced to a large spot on each side, all bright yellow. Wings deep yellowish-fuscous, with an obscure brassy gloss ; the anterior pair with the apex, beyond the areolet, hyaline and iridescent; nervures fusco-ferruginous, the costa and stigma fulvous ; areolet large, subtri- augular, or subrhomboidal. Legs bright fulvo-ferru« - inous, the two an- terior pairs tinged Avith yellowish ; posterior tibiae and tarsi vellow, their apical half fusco-ferruginous. Abdomen fulvo-ferruginous, darker to- wards the apex which is elongate and acute; apical margins of the four basal segments with a broad bright yellow band, broadest on the first segment where the band is dilated on each side ; one specimen has a black mark on the extreme basal middle of each segment, larger and more conspicuous on the apical segments which have a dark rufous tinge ; venter more or less compressed, fulvo-ferruginous, stained at base with yellowish. Length 6 — 7 lines; expanse of wings 9^ — 102 lines. 1865.] 283 Male. — Resembles the female, but the antennae are nearly as long- as the body ; the face is entirely yellow, as well as the basal margin of the clypeus, which has a small black spot on each side ; the front, be- hind the antennae, is black except the orbits which are yellow ; the lateral yellow margins of the mesothorax are broader and more distinct, there is a large yellow mark on the disk connected with the lateral stripe anteriorly by a narrow line on each side of the middle ; sides of the pleura, except a space beneath the posterior wings, yellow ; the apical half of the metathorax is yellow, dilated on the middle anteriorly, there is also an obscure yellowish, rounded spot on each side at base ; the fifth segment of the abdomen has an obscure yellowish apical band. Length 6 lines; expanse of wings 10£ lines. Three 9 , one % , specimens. We have a rather smaller species belonging to this genus, found in the Eastern and Middle States, and which I have named G.fasoiata. It is black, with the face, cheeks, a line or spot on each side of the mesothorax, tegulfe, a line beneath the anterior wing, anterior margin of the pleura, scutellums, posterior half of the metathorax, the legs in part, and a broad apical band on each abdominal segment, yellow ; the wings are deep yellowish-fuscous, with a brassy and subviolaceous gloss. I shall describe it more fully in a future Paper. Genus CAMPOPLEX. Grav. Campoplex laticinctus, n. sp. Black; wings hyaline; third and fourth segments of abdomen rufous. Female — Black, opaque, clothed with short pale pubescence ; face closely punctured ; upper margin of mandibles testaceous ; antennae rather stout, more than half the length of the body, entirely opaque black. Thorax very closely punctured ; metathorax depressed on the disk and covered with fine transverse rugae, with a well-defined, irregu- lar arcuated carina at base; tegulae piceous-black. Wings hyaline, faintly tinged with dusky about the apical margins; nervures fuscous; areolet large, subtriangular. Legs piceous-black, the anterior pair yel- lowish in front. Abdomen very slender at base, gradually broader and compressed beyond the second segment, black, somewhat shining the third and fourth segments bright rufous, the second sometimes tinged with fuscous or rufous ; first segment long, very slender at base, and somewhat swollen at tip ; second segment not as long as the first, and nearly three times longer than broad, subcompressed ; ovipositor very short. Length 6 lines ; expanse of wings 8 lines. Two specimens. 2S4 [April Genus ANOMALON. Grav. 1. Anomalon curtum. Norton. Anomalon curtus, Norton, Proc. Ent. Soc. Philad. i. p. 362. Four % specimens. 2. Anomalon propinquum, n. sp. Black; face, orbits, most of legs, tegulse. scutellum and broad stripe on each side of abdomen, yellow; antennae fuscous; wings hyaline. Male. — Black, opaque, very closely punctured, thickly clothed with a very short, pale glittering pubescence ; head a little wider than the thorax ; face, the orbits uninterrupted, clypeus, mandibles except tips. and the palpi, yellow; antennae about as long as the head and thorax, dusky-ferruginous, paler beneath, the three basal joints yellow beneath. Thorax : scutellum suborbicular, prominent, convex and entirely yel- low ; metathorax coarsely rugose, its posterior face depressed ; tegulae yellow. Wings hyaline, iridescent; nervures pale fuscous, yellow at base. Legs yellow ; posterior coxae, their femora, and apical third of their tibiae, black ; basal joint of posterior tarsi with the apex dusky; posterior femora short, hardly longer than the basal joint of their tarsi. Abdomen elongate, slender at base, gradually broader and sub- compressed beyond the first segment, black ; second segment with its venter and a longitudinal stripe on each side, yellow; remaining seg- ments black,- with a broad yellow stripe on each side; first and second segments about equal in length, the former cylindrical, slightly swollen at tips, the second segment subcompressed. Length 8 lines ; expanse of wings 91 lines. One specimen. Very closely allied to A. cwtum, but is differently colored, the hind legs shorter and more robust, and the two basal seg- ments of the abdomen shorter. Genus EXOCHILUM, Wesm. Exochilum mundum, Say. Ophion mundus, Say, Bost. Journ. Nat. Hist, i, p. 228. Anomalon flavipes, Brulle, Hym. iv, p. 170. Exochilum mundus, Norton, Proc. Ent. Soc. Philad. i, p. 360. One % specimen. Genus PANISCUS, Grav. Paniscus geminatus, Say. Ophion geminatus, Say, Contrib. Macl. Lye. i, p. 76. Paniscus geminatus, Norton, Proc. Ent. Soc. Philad. i, p. 364. Two $ specimens. Genus OPHION, Fabr. Ophion bifoveolatus, Brulle. Ophion bifoveolatus, Brulle, Hym. iv, p. 139. Norton, Proc. Ent. Soc. Philad. i, p. 358. One 9 , three % specimens. 1865.] 285 Genus TRACHYNOTUS, Grav. Trachynotus reticulatus, n. sp. Black; antenme, legs and abdomen brown-black : frontal orbits, an obsolete interrupted line on each side of mesothorax, and the anterior legs in front, pale yellowish; wings hyaline, iridescent. Male. — Dull black, coarsely and transversely rugose ; head subquad- rate, smooth and shining, the face very finely sculptured, thinly clothed with short pale glittering pubescence; frontal orbits, more or less in- terrupted, pale yellowish ; mandibles tinged with ferruginous; antennae slender, nearly half the length of the body, entirely piceous-black. Thorax transversely rugose, the mesothorax rough and somewhat re- ticulated, with a more or less interrupted yellowish longitudinal line on each side, sometimes obsolete; prothorax striated; pleura finely rugose; scutellum coarsely rugose, with a very deep excavation in front; nieta- fchorax coarsely reticulated, the extreme base with a very irregular transverse carina on each side of the middle, enclosing a narrow, nearly smooth space ; tegulae piceous, with the posterior margin pale yellow- ish. Wings hyaline, iridescent; nervures black, pale at base. Legs piceous-brown, the two anterior pairs more or less yellowish ; the pos- terior pair blackish, their tibiae and tarsi tinged with rufo-piceous. Abdomen very long and slender, thickened and subcompressed at tip; brown-black ; sometimes the basal sides of the first segment and a spot on each side of the apex, are pale yellowish ; the three basal segments long and linear, the second the longest; the third, fourth and fifth seg- ments are more or less tinged with rufo-piceous. Length 5J lines; expanse of wings 6 lines. Three specimens. Genus CREMASTUS, Grav. Cremastus fulvescens, n. sp. Fulvous ; face, broad outer orbits, clypeus, mandibles, and legs in part, yel- low ; tips of posterior tibiae, black ; wings dark fuscous. Female. — Head transversely subglobose, very finely and closely punc- tured, shining, clothed with fine pale pubescence; yellow, the occiput and posterior margin of the cheeks fulvous, the vertex, behind the in- sertion of the antennae blackish ; cheeks smooth and polished with a few scattered delicate punctures; tips of mandibles black; antennae filiform, rather more than half the length of the body, dusky ferrugi- nous, the basal joint beneath yellowish. Thorax fulvous, shining, sparsely punctured, clothed with a short, thin, yellowish pubescence; prothorax densely punctured; mesothorax and pleura polished, some- times more or less black beneath the four anterior legs, the mesothorax densely punctured on the disk and transversely striated on the posterior 286 [April middle; scutellum tinged with yellow, rather prominent and closely punctured; metathorax opaque fulvous, reticulated, with a central lon- gitudinal channel, pubescent; tegulae tinged with yellowish. Wings ample, dark fuscous, with a more or less violaceous reflection, some- times tinged with deep yellowish about the base ; nervures fuscous, pale at base, costa and stigma yellowish. Legs yellowish; the four anterior femora behind, tinged with fulvous ; tarsi dusky at tips ; pos- terior coxa), trochanters above, and their femora fulvo-ferruginous ; extreme tips of their femora and the apical fourth of their tibia?, black. Abdomen about twice the length of the head and thorax, fulvous, the two basal segments long and very slender, the remainder broad and much compressed ; basal segment long and slender, cylindrical, very slightly swollen at tip. second segment linear, subcompressed, slightly longer than the first, its dorsal edge blackish ; venter tinged with yel- lowish; ovipositor very short. Length 91 lines; expanse of wings 1 1 lines. Male. — Resembles the female, but the antennas are longer, the pleura beneath, between the four anterior legs, is deep black, as well as the posterior femora above and the extreme apex of the abdomen. Four 9 , one % ■ specimens. Var. a. — C. apicaijs. 9 . — Most of prothorax, the pleura, except a large rufous stain on each side, the sides and base of the metathorax more or less, and the two apical segments of the abdomen, black; the mesothorax in front is sometimes more or less dusky. Six $ specimens. Var. b. — C. seminiger, % 9 . — Vertex, occiput and thorax entirely black in % ; the mesothorax in 9 with two obscure rufous stains behind the middle, the scutellum entirely, and two stains on the disk of the metathorax, rufous; antenna) of % brown-black; posterior femora black, most of the femora of the % , also black ; two apical segments of the abdomen in both sexes, black ; sometimes the whole of the fourth seg- ment and some of the ventral segments, are also black. One 9 , two £ specimens Var. c. — C. NIGRICANS, 9 . — Head rufous, tinged with yellowish in front, the vertex and tips of mandibles black ; antenna? fusco-ferrugi- nous ; thorax dull black, the mesothorax above obscurely stained with rufo-piceous ; tegula? rufous; wings colored rather darker, the costa and stigma fuscous ; legs rufous, the two anterior pairs ferruginous, the posterior coxa), femora, and apical half of their tibiae, black, their tarsi yellow, blackish at extreme tips ; abdomen rufous, with the dorsal 1865.] 287 edge of the second, most of the third, and all of the remaining seg- ments, shining black ; ovipositor as long as the first segment of the abdomen, rufous, valves black. One specimen. This may be a distinct species, as the punctures of thorax are closer and more distinct, and the hind legs seem to be shorter and more robust. Genus PORIZON. Grav. 1. Porizon fuscipennis, n. sp. Black ; orbits, mandibles, tegulse, venter and spots on apical segments of ab- domen above, yellow; legs and apex of abdomen, rufous; wings fuscous; ovi- positor long. Female. — Black, shining, finely pubescent, head delicately punc- tured; clypeus rufo-piceous ; mandibles large, projecting, of equal breadth, and when closed together there is left a large semicircular open- ing between them and the clypeus, tinged with ferruginous, their tips black ; palpi yellowish ; antennas about as long as the head and tho- rax, rather slender and entirely piceous-black. Thorax black, shining, closely punctured ; anterior middle of the mesothorax flatly elevated ; scutellum prominent, flattened, with a sharp carina on each side and a deep excavation in front; metathorax' densely punctured, with sharply defined elevated lines, forming a small, distinct, elongate, 5-angular central area, the apex rather abrupt and transversely striated; tegulaa yellow. Wings ample, short and broad, uniform dark fuscous ; ner- vures black. Legs ferruginous, the two anterior pairs yellowish in front, the coxte and most of the posterior tibiae, fuscous; all the tarsi yellowish. Abdomen ferruginous, the two basal segments, except ex- treme tips, blackish ; the remaining segments with most of their apical margins yellowish, much dilated in the middle, sometimes this yellow- ish color is obscure and somewhat dusky ; venter entirely yellowish ; apical segment above much swollen at tip ; ovipositor as long as the abdomen, blackish. Length 5 lines; expanse of wings 1\ lines. Two specimens. Easily distinguished by the broad dark fuscous wings. 2. Porizon albipennis. n. sp. Black; orbits, two spots on clypeus, mandibles, tegulse, legs in part, the ven- ter and apical margins of dorsal segments of abdomen, pale yellowish ; most of legs pale ferruginous; wings whitish-hyaline: stigma blackish. Female. — Black; orbits, abbreviated in front, anterior margin or two spots on clypeus, and the mandibles, yellowish-white; antenna? two-thirds the length of the body, piceous-black. Thorax closely and very finely punctured ; the elevated lines on the metathorax sharply defined, the central area large, elongate, irregular 5-angular; tegulae 288 [April pale yellowish-white. Wings whitish-hyaline, iridescent, stigma large, blackish, the nervures subhyaline. Legs pale ferruginous ; anterior coxse, annulus on four posterior tibiae and their tarsi at base, whitish ; remainder of the posterior legs, blackish. Abdomen slender at base, broad and compressed beyond the first segment, black, shining, feebly punctured; first segment swollen at tip, the second covered with very fine longitudinal strife; apical margins of the remaining segments pale yellowish, dilated into a large spot on the dorsal edge; venter pale yel- lowish, spotted with blackish; ovipositor longer than the abdomen, piceous. Length 4 lines ; expanse of wings 5 lines. Two specimens. Genus XYLONOMUS, Grav. Xylonomus cincticoruis, n. sp. Black: antennae with a broad white annulus beyond the middle: wings sub- hyaline: tarsi brownish: ovipositor longer than the body. Female. — Deep black, subopaque; head minutely sculptured, the cheeks indistinctly aciculate ; clypeus small, transverse-ovate, deeply concave, piceous, as well as the palpi ; antennas more than half the length of the body, slender, black, with a broad, pure white annulus just beyond the middle.. Thorax : mesothorax very closely punctured, rugose on the disk posteriorly, the middle lobe prominent; prothorax and pleura sparsely and delicately punctured, polished, clothed beneath with a very fine, short, silvery-white pile; scutellum flatly elevated, closely and minutely punctured, shining, with a deep transverse exca- vation in front; metathorax rugose, with well-defined elevated lines, forming a broad, elongate central area, constricted into a narrow neck towards the base; behind the central area the tip of the metathorax is abruptly excavated and bounded above by a sharply defined carina which ends on each side in a prominent, subacute tubercle; sides of the metathorax more densely rugose ; tegulae piceous. Wings long and narrow, hyaline with a slight tinge of yellowish-fuscous, and a sub- metallic, iridescent reflection; nervures and stigma black, the former piceous at base, the stigma with a white dot at base. Legs elongate, piceons-black; the four anterior tibia) stouter than their femora ; the anterior legs in front and all the tarsi, brownish, the extreme tips of the latter black ; anterior tibial with a yellow spot at the base within. Abdomen 'about twice as long as the head and thorax ; first segment one-third the length of the abdomen, depressed, finely sculptured, grad- ually broader towards the tip and depressed on each side, the lateral margins carinate. with a small tubercle on each side before the middle; second segment with a deeply impressed oblique line on each side at 1865.] 289 base ; remaining segments gradually broader and subcompressed, the apex obliquely truncate, tbe apical dorsal segment somewhat recurved; ovipositor longer than the body, ferruginous, valves black. Length 9 J lines; expanse of wings 12 J lines. One specimen. Readily recognized by the deep black color, with antennas broadly annulate*! with pure white. Genus ODONTOMERUS. Grav. 1. Odontomerus iEthiops, n. sp. Piceous-black, polished ; wings subhyaline, violaceous; legs pieeous ; ovipo- sitor longer than the body, ferruginous. Female — Entirely piceous-black, polished ; head very finely punc- tured, very dense on the face, clothed with a short, thin, dull yellowish pubescence; (antennae broken off.) Thorax indistinctly punctured, slightly pubescent; scutellum flatly elevated, closely punctured, with a deep transverse excavation in front ; metathorax indistinctly sculptured, with tolerably well-defined elevated lines, forming au elongate, irregular central area, the extreme apex veiy abruptly truncate, smooth and shining, and enclosed by a sharply defined carina ; tegulas pieeous. Wings long, narrow, fusco-hyaline, paler at base, with a rather strong violaceous reflection ; nervures and stigma black, the former brownish at base. Legs robust, pieeous, the tibias and tarsi clothed with a very fine, dense, appressed, brownish-sericeous pile ; the tooth on the poste- rior femora beneath large and subacute. Abdomen elongate, robust, subsessile or slightly subpetiolated, polished, delicately punctured, the apex broad and truncate, subcompressed; basal segment twice broader at tip than at base, rather deeply channelled about the middle ; oviposi- tor longer than the body, ferruginous, valves pieeous, thickened at tips and pale yellowish within. Length 6J lines; expanse of wings 10> lines. . Male. — More slender and of deeper black than the female ; the an- tenna? are two-thirds the length of the body, piceous-black ; the wings are almost hyaline; the abdomen is rather slender, subcylindrical, and almost petiolated, the first segment rugose, the second and third rather densely punctured, the others smooth and polished. Length 61 lines; expanse of wings 9 J lines. Two specimens. 2. Odontomerus abdominalis, n. sp. Black; legs and abdomen, except base, rufo-ferruginous ; wings fusco-hya- line, violaceous ; ovipositor as long as the body. Female. — Black, shining, indistinctly punctured, slightly pubescent ; antennas nearly as long as the body, piceous-black. Thorax much as 290 [April in the preceding species, except that the spaces on each side of the seutellums are striated, and the central area of the metathorax more suddenly and broadly dilated posteriorly. Wings fusco-hyaline, with a strong violaceous reflection ; nervures and stigma black. Legs very robust, rufo-ferruginous, the tibia; and tarsi covered with a very short yellowish-sericeous pile; cux;e and trochanters piceous. Abdomen ro- bust, broadly subfusiform, subpetiolated, smooth and polished, rufo- ferruginous; first segment piceous at base, twice broader at tip than at base, with a small tubercle on each side about the middle; apex slightly subcompressed and rather paler in color thau the rest of the abdomen; ovipositor as long as the body, bright ferruginous, valves piceous. thick- ened at tips and whitish within. Length 4] lines; expanse of wings 8 lines. Two specimens. Subfam. BRACON [DES. TENTHREDOIDES. qov. gen. Body short and stout, lliinl transverse, not broader than the tho- rax ; vertex subconvex ; occiput concave; cheeks prominent; front excavated behind the antennae; ocelli approximately arranged in a tri- angle on the vertex ; eves small, oval ; clypeus very transverse, sub- truncate in front; mandibles moderate, fitting close against the clypeud when shut; palpi rather slender, filiform. Antennae more than half the length of the body in $ . as long as the body in % , thickened, slender at tips. Thorax short, robust, somewhat gibbous; mesothorax subconvex, trilobate, the dorsal lines very deep and converging on the disk where they become confluent; sides of prothorax and of pleura excavated; scutelluin subtriangular, with a deep transverse, crenulated excavation in front, the spaces on each side rather deeply excavated ; metathorax short, transverse, abrupt behind. Wings ample, broadly, rounded at tips ; nervures robust, those beyond the middle subobsolete, stigma large ; marginal cell elongate, broad at base, rather suddenly constricted at the tip of the second submarginal cell, and thence nar- rowed to the tip which is somewhat incurved and reaches the extreme apex of the wing, this uervure is subobsolete; first submarginal cell about as broad as long, of an irregular subtriangular form ; second sub- marginal cell elongate, being nearly three times longer than broad, subobsoletely defined towards the tip, the apical uervure oblique, very indistinct; third submarginal cell indistinctly defined ; discoidal cell about half the size of the first submarginal, elongate and narrowed at tip ; praediscoidal cell closed, as large as the discoidal, the side nervures 1865.] 291 oblique ; parallel nervure not intersticial ; nervures of the posterior wing robust. Legs short and robust ; coxae small, the posterior pair compressed or somewhat twisted. Abdomen subsessile, short, broadly ovate in 9 , less broad in £ . depressed ; apex in 9 subcompressed, the ovipositor subexserted, the ventral valve large, and shaped somewhat like a plow-share. This genus has much the general appearance of certain Tenthredini- dous genera, by means of the short, robust form, the large, broad wings and the nearly sessile abdomen. It belongs to the Polymorphes of Wesmael, but T am unable to identify it with any of the genera described in that division. The marginal and second and third submarginal cells of the anterior wings are indistinctly defined, the nervures being subob- solete. I notice in the Society's Collection, two or three species from the Atlantic States, which belongs to this genus; all have dark fuscous wings, and the body of one species is entirely black; the others are similarly colored to the following. Tenthredoides seminiger. n. sp. Yellowish-red, shining ; head, antennae, breast, metathorox, coxeb and tro- chanters, black : wings blackish-fuscous ; metathorax coarsely rugose. Female. — Head black, smooth and polished, slightly pubescent ; nar- row inner and broad outer orbits, and the basal margin of the clypeus. rufous; antennae entirely black. Thorax yellowish-red, smooth and polished ; mesothorax with two approximate black dots, sometimes con- fluent, on the extreme anterior margin, sometimes concealed by the head ; pectus, and the pleura except the broad aDterior margin, black ; space on each side of the scutellum obliquely striated, its lower margin flat, polished and black, as well as the space on each side of the post- scutellum ; metathorax black, opaque, coarsely rugose, the disk having a longitudinal ovate excavation, surrounded by a well-defined carina ; tegulae yellowish-red, bordered behind with black. Wings uniform blackish-fuscous ; nervures black; lower margin of the first submarginal cell, two dots at tip of prrediscoidal cell, and a furcate line at tip of second submarginal cell where it joins the marginal, hyaline. Legs yellowish-red, the coxae and trochanters black, the four posterior tarsi, and tips of the posterior femora within, more or less dusky. Abdomen about as long as the thorax, broadly ovate, depressed, polished, yellow- ish-red, basal segment orange-yellow, with a more or less distinct black mark on the prominent dorsal middle; valves of the ovipositor robust, black. Length ol lines; expanse of wings 8 lines. Male. — Resembles the female, but the antennae are as long as the 292 [April body, and the abdomen more depressed, less broad, and obtusely rounded at tip. Fourteen 9 > three % specimens. Genus HELCON, Nees. 1. Kelcon occidentalis. n. sp. Black, polished: legs dull honey-yellow, posterior tibiae and tarsi blackish, their femora beneath with a stout, obtuse spine ; wings hyaline. Male. — Black, polished ; head delicately punctured, finely pubescent; face opaque, very closely punctured ; between the insertion of the an- tenna) a very prominent acute carina ; labrum fringed with yellowish pubescence; palpi testaceous ; antennae three-fourths the length of the body, slender, curled at tips, entirely piceous-black, somewhat paler at base. Thorax finely pubescent, shining ; prothorax irregularly rugose, subopaque; pleura somewhat rugose, with a smooth polished space on each side beneath the wings ; ruesothorax smooth and polished, trilo- bate, the middle lobe very prominent, convex ; scutellum depressed, obtuse at tip, closely punctured, with a deep transverse excavation in front, divided in the centre by a sharp carina ; the spaces on each side of the scutellum, striated ; metatborax coarsely rugose, subopaque, on the basal middle a shallow longitudinal channel bounded on either side by a well-defined carina slightly diverging posteriorly; tegulae houey- yellow. Wings hyaline, very faintly tinged with dusky, slightly iride- scent ; nervures and stigma black, the former yellowish at base. Legs, including the coxa3, dull honey-yellow, the posterior pair stoutest and darkest; tips of the posterior coxae, upper and lower margins of their femora, their tibiae entirely, and most of their tarsi, blackish, their femora with a stout, obtuse tooth beneath towards the tip. Abdomen subsessile, depressed at base, deep black, polished ; first and second segments obsoletely sculptured, the former gradually broader at tip, the second segment with a broad, shallow, oblique depression on each side at base; remaining segments subconvex, smooth and polished; venter subcompressed. Length 6i lines; expanse of wings Hi lines. One specimen. 2. Helcon fulvipes, n. sp. Black, polished ; wings fuliginous ; legs fulvo-ferruginous ; ovipositor as long as the body. Female. — Head as in the preceding species, except that the face is subrugose, and the palpi dusky testaceous; antennae as long as the body, entirely black. Thorax much as in the preceding species, but the ru- gosity of the prothorax and pleura is more dense ; the middle lobe of the mesothorax is prominent and convex, the groove on each side is 1865.] 20H coarsely rugose, the two becoming confluent on the disk in a large de- pressed and coarsely rugose space; scutellum sparsely punctured with a deep, broad, arcuated excavation in front, which has five short sharply- defined longitudinal carinse; metathorax rugose or somewhat reticu- lated, with several well-defined longitudinal carinse ; tegulre piceous. Wings fuliginous, with a slight violet reflection ; nervures and stigma black. Legs, including the coxae, entirely fulvo-ferruginous, the pos- terior tibiae and tarsi tinged with dusky, their femora simple. Abdo- men subsessile, depressed at base, broad and subcompvesscd at tip, smooth and polished, except the basal segment which is densely and rather finely rugose; the second segment is finely aciculate on each side at base ; ovipositor as long as the body, ferruginous, valves black- ish. Length 5 lines; expanse of wings 82 lines. One specimen. Distinct from the preceding species by the sculpture of the mesothorax and basal segment of the abdomen, also by the color of the wings and legs. Genus CHELONUS, Jurine. 1. Chelonus sericeus, Say. Sigafphus sericeus, Say, Long's 2nd Exp. ii, p. 321. Chelonus sericeus, Say, Bost. Journ. i, p. 266. Three specimens. 2. Chelonus rufiventris. n. sp. Black; wings subhyaline : tegulse, four anterior tibiae and tarsi and annulus on posterior tibijc, testaceous ; abdomen dull rufo-ferruginous. Male.— Black, opaque, densely rugose, very finely and sparsely pu- bescent; face transversely striated ; tips of mandibles piceous; antennas entirely black, longer than the head and thorax, slender at tips. Thorax more coarsely rugose than the head; spaces on each side of the scutel- lums striated, with an intervening flattened, smooth and highly polished space; metathorax short, abruptly truncate behind, coarsely rugose or somewhat reticulated, the posterior truncation bounded above by a well- defined carina, and has on each side a subacute tubercle ; tegulae pale testaceous, dusky on the outer margin. Wings subhyaline, tinged with yellowish-fuscous ; the nervures as in sericeus, with the second submar- ginal cell more elongate, and its outer nervure obliterated. Legs piceous- black ; tips of the femora, the four anterior tibia? and tarsi, a broad annulus on the posterior tibiae and the base of their tarsi, testaceous. Abdomen broadly rounded behind, dull rufo-ferruginous, slightly va- ried with dusky above towards the base, where the surface is covered with irregular longitudinal rugae, the rugosity becoming very fine and in- 294 [April distinct towards the tips; venter very deeply concave. Length 31 lines ; expanse of wings 6J lines. One specimen. :?. Chelonus iridescens. n. sp. Black, subsericeous : antennae piceous ; most of legs pale ferruginous : wings fuliginous, the apical margins beautifully iridescent. Male. — Black, opaque, subsericeous, sculptured like C. riifiventris, except that the face is not transversely striated ; palpi and antennae piceous, the latter sericeous, longer than the head and thorax ; tegulae also piceous. Wings uniform pale fuliginous, the apical margins, especially of the posterior pair, beautifully iridescent; nervures and stigma black ; the second submarginal cell complete. Legs black, the anterior femora, tibiae and tarsi, apical half of the intermediate femora, their tibiae and tarsi, tips of the posterior femora, their tibiae except base and apex, and the base of their tarsi, pale ferruginous. Abdomen shaped and sculptured similar to C. rujiventris, subserice- ous; venter deeply concave. Length 2 1 , lines; expanse of wings 4 lines. One specimen. 4. Chelonus laevifrons. n. sp. Black, subsericeous; most of legs pale ferruginous; wings hyaline, iride- scent; face almost smooth; antennae nearly as long as the body; abdomen above covered with longitudinal striae, Male. — Black, opaque, finely rugose, subsericeous; head very finely sculptured, the face almost smooth, and somewhat shining; mandibles and palpi piceous; antennas three-fourths the length of the body, en- tirely piceous. Thorax sculptured similar to the preceding species, but more finely rugose, and the inetathorax has two sharply defined diverg- ing carinas on the dorsal middle; tegulae fuscous. Wings hyaline, very slightly tinged with dusky, beautifully iridescent; nervures pale fus- cous ; second submarginal cell almost closed. Legs blackish, the tibiae and tarsi pale ferruginous, the posterior tibiae dusky at base and apex, as well as the tips of all the tarsi ; most of the anterior femora and the tips of the posterior pair, pale ferruginous. Abdomen oblong-ovate, apex obtuse, but not broadly rounded; upper surface subconvex aud covered with fine irregular longitudinal striae, which become finer and less distinct towards the tip ; venter deeply concave. Length lj line; expanse of wings 3 lines. One specimen. Much smaller than C. iridescens, with the antennae longer, the face almost smooth, aud the abdomen more elongate and not so blunt at tip. 1865.] 295 Genus AGATHIS, Latr. 1. Agathis vulgaris, n. sp. Orange-yellow; tip of rostrum, palpi, antennae, tegulae, pleura beneath, coxae and trochanters, tips of posterior femora, their tibiae except an annulus about the middle, and their tarsi entirely, black : wings dark fuscous, with a subhy- aline patch beneath the stigma; metathorax with well-defined longitudinal and transverse elevated lines ; body polished. Female.. — Bright orange-yellow, sometimes honey-yellow, smooth and polished, sparsely and delicately punctured, slightly pubescent; on each side of the face a large, deep, blackish puncture; tip of tbe rostrum and the palpi, black; antennae more than half the length of the body, dull black, sericeous, the basal joint shining. Thorax : mesothorax trilobate, the central lobe prominent with a deep groove down its mid- dle ; pleura more closely punctured, the space between the four anterior legs black; scutellum subconvex, the excavation in front very deep with several short, well-defined carinae; on each side of the scutellums two black transverse lines; metathorax with several well-defined lon- gitudinal and transverse lines, forming a small quadrate central area; tegulae black. Wings ample, uniform dark fuscous, the posterior pair somewhat iridescent, nervures black ; the anterior pair with two or three subhyaline patches beneath the stigma ; areolet small, quadrate. Legs color of the body ; the four anterior coxae except a spot beneath, all the trochanters, tips of the middle tibias, the four posterior tarsi, tips of the posterior femora, their tibiaa, except a more or less distinct an- nulus towards the base, black. Abdomen subcompressed, smooth and polished, the dorsal surface of the three basal segments somewhat flat- tened, the lateral margins of the first and second segments acutely cari- nated, the first segment narrowed at base with a small prominence on each side near the base, second segment depressed or somewhat exca- vated on each side, leaving the lateral margins sharp and prominent ; ovipositor longer than the abdomen, orange-yellow, valves black, shin- ing. Length 3 — \-> lines; expanse of wings 6 — 8£ lines. Twenty-seven specimens. 2. Agathis media, n. sp. Yellowish-red ; vertex, sides and tip of rostrum, antennas, breast, tegulae, metathorax, four anterior coxae, trochanters, and posterior tibiae and tarsi, black; wings fuliginous. Male. — Yellowish-red, sometimes bright orange-yellow or honey- yellow, smooth and polished, sculptured like .4. vulgaris, but more slender in form ; vertex, occiput, tip and sides of rostrum and the palpi, black ; antennae about as long as the body, entirely black ; prothorax above in front, pectus entirely, the pleura beneath, tip of scutellum, 296 [April the spaces on each side, postscutellum, metathorax except an oval spot on each side, and the tegulae, black ; metathorax sculptured similar to A. vulgaris, except that the elevated lines are better denned. Wings as iu vulgaris. Legs color of the body ; the four anterior coxa), all the trochanters, tips of the middle tibiae and their tarsi entirely, tips of the posterior coxaa, of their femora, and their tibioe and tarsi entirely, black ; sometimes the posterior tibire has a more or less distinct yellow- ish-red annulus as in vulgaris. Abdomen as in vulgaris but more slen- der and scarcely subcom pressed at tip. Length 2>\ — 3| lines; expanse of wings 63 — 7 lines. Sixteen specimens. This may be the male of A. vulgaris, as the sculpture is very similar but most of the head and metathorax are black. :'-. Agathis atripes, n. sp. Rufous : head, antennae, tegulse, breast, disk of metathorax and the legs, black: wings fuliginous; basal segment of abdomen deeply sulcate. Male. — Pale rufous, shining, slightly pubescent; head smooth and polished, entirely black, the rostrum not much prolonged, truncate at tip; antennae about as long as the body, entirely black, very slender. Thorax smooth and polished, mesothorax distinctly trilobed. the middle lobe convex, without any central groove ; pectus entirely, and the pleura beneath, black ; scutellum subconcave, the excavation in front very deep, divided in the middle by a single carina, the spaces on each side black; metathorax indistiuctly sculptured, the upper surface almost entirely black, the dorsal middle with an elongate enclosed space which has a central longitudinal carina; tegula black. Wings uniform fuliginous, with two or three subhyalinc patches beneath the stigma; areolet sub- triangular ; posterior wings slightly iridescent. Legs, including the coxae, entirely black. Abdomen elongate-ovate, subdepressed, entirely pale rufous, polished ; first segment twice broader at tip than at base, deeply sulcate above especially at base, with a sharply defined longi- tudinal carina on each side, the sulcus obsoletely aciculate ; incisure between the first and second segments excavated on each side; second segment with a well impressed transverse line before the middle and another just before the base, these lines are faintly crenulated; remain- ing segments smooth and polished, the apex obtuse. Length 3 £ lines ; expanse of wings 61 lines. Two specimens. 18G5.] 207 1. Agathis nigripes. n. sp. Yellowish-rufous ; head, antenna?, tegulse, breast, disk of metathorax and legs, black; wings fuscous; metathorax without impressed lines; basal seg- ment of abdomen convex, incisure between first and second segments deeply excavated on each side; ovipositor longer than the body. Female. — Colored exactly like A. atripes, except that the anterior femora are yellowish at tips ; the mesothorax is convex, without any trace of impressed lines, and sometimes has a black mark in front; the metathorax is sculptured the same and is sometimes entirely black ; the wings are paler, being uniformly fuscous, the areolet is small and triangular ; the basal segment of the abdomen is convex except at the extreme base where it is rather deeply excavated and carinated on each side ; the incisure between the first and second segments has a deep fovea on each side, the latter segment has two transverse impressed lines as in atripes but less distinct; the third and following segments are convex, smooth and polished; the apex is rounded; the ovipositor is longer than the body, ferruginous, the valves black. Length 2-] lines ; expanse of wings 5 lines. Three specimens. Genus MICRODUS, Nees. 1. Microdus fulvescens, n. sp. Honey-yellow, abdomen orange-yellow; antenna?, tips of mandibles, and four anterior trochanters, black ; wings uniform fuliginous, with a large hyaline spot beneath the stigma ; ovipositor scarcely exserted. Female. — Uniform pale honey-yellow, shining, finely pubescent; head slightly broader than the thorax; clypeus prominent, broadly rounded in front, with a deep fovea on each side at base; middle of the face rather prominent and obsoletely aciculate ; mandibles project- ing, subacute, fringed with long pubescence and black at tips; labrum exserted, subquadrate, filling up the space between the clypeus and mandibles; palpi dusky, annulated with pale testaceous; antenna3 nearly as long as the body, brown-black, the basal joint robust and shining black. Thorax polished, sparsely and indistinctly punctured ; meso- thorax tribolate, the middle lobe slightly grooved, and behind it a very deep, subtriangular excavation ; prothorax smooth and polished; pleura with an oblique excavated line on each side ; the excavation in front of the scutellum deep and crenulated ; metathorax rugose ; tegulse honey- yellow. Wings ample, uniform fuliginous, with a large hyaline patch beneath the stigma ; nervures black ; areolet minute, subtriangular and petiolated. Legs color of the body, punctured, slightly pubescent; the four anterior trochanters and tips of their tarsi, the posterior trochan- ters at tip above, and tips of their tibia) and most of their tarsi, black 298 [April or blackish. Abdomen rather short, broad and subcompressed towards the apex, orange-yellow, smooth and polished ; two basal segments de- pressed above, the first excavated at base with a stout tubercle on each side; the incisure between the first and second segments with a deep fovea on each side; venter tinged with pale yellowish, apex gapping, ovipositor scarcely exserted. Length 3f lines; expanse w. Abdomen sometimes orange-yellow, especially at tip and be- neath, sculptured like that of B. uniformis, except that the swelling on the first segment is ovate, and the third segment has a deeply im- pressed, oblique line on each side, making the swelling on each basal coiner much more prominent; ovipositor longer than the body, honey 1865.] 803 or orange-yellow, valves black. Length 2| — o] lines ; expanse of wings 5 — 'i lines Five specimens. Closely allied to the preceding species. The color of the legs sometimes varies to entirely black ; in one specimen the posterior femora is strongly tinged with rufous, and in another speci- men all the femora, except tips, are honey-yellow. They may, however, prove to be varieties of wniformis. 8. Bracon xanthostigma. n. sp. Honey -yellow ; abdomen ochreous-yellow, broad-ovate: antenna, pleura be- neath, metathorax. tarsi and spot on base of abdomen, black ; wings fuscous, pale at tips, stigma large, ochreous-yellow. Female. — Head and thorax honey-yellow, shining, pubescent; face yellowish ; tips of mandibles and the palpi dusky ; antennae nearly as long as the body, entirely blackish. Thorax smooth and polished ; the pleura beneath, between the four anterior legs, black; space on each side of postscutellum and the metathorax above, black; tegulse honey- yellow. Wings rather ample, deep yellowish-fuscous, the apical third subhyaline, with a faint violet reflection ; nervures pale fuscous, stigma large and ochreous-yellow. Legs honey-yellow ; all the tarsi and tips of the posterior tibiae, blackish. Abdomen broad-ovate, opaque ochre- ous-yellow. minutely sculptured; first segment excavated and subru- gose, with a large blackish spot or circle on the disk ; ovipositor rather longer than the body, honey-yellow, valves black. Length 2 J lines; expanse of wings 5 lines. Four specimens. Readily distinguished by the short, robust form, the coloration of the wings and the yellow stigma. Fam. CHALCIDIM1. Genus PERILAMPUS, Latr. Perilampus platigaster, Say. Perilampus platigaster, Say, Bost. Jour. Nat. Hist, i, p. 274. Two specimens. Fam. CHRYSIBID^E. Genus OMALUS, Tanz. Omalus laeviventris, n. sp. Green, with a blue and purple reflection; head and thorax with large punc- tures, disk of prothorax and mesothorax smooth; abdomen smooth and polished: wings fusco-hyaline, hyaline at base. Dark green, changing to brilliant blue and purple; head with rather large close punctures, indistinct on the occiput, which is strongly tinged with blue and purple; tips of mandibles piceous; antennae dull brown- black, basal joint green. Thorax with large, rather deep and close 304 [April punctures, larger on the scutellum and metathorax ; most of the pro- thorax and rnesothorax above smooth and polished, and strongly tinged with blue and purple; metathorax convex, the posterior angles promi- nent and subacute ; tegulse bronze-green. Wings subhyaline, the apical half pale fuscous; nervures fuscous. Legs green, tarsi rufo-testaceous. claws with two teeth between the base and apex. Abdomen ovate, convex, smooth and polished, blue-green with a brilliant purplish re- flection ; a deep, rounded excavation at extreme base ; apical segment faintly subcompressed, very minutely punctured, finely pubescent, and deeply and obtusely notched at tip ; venter deeply concave, brilliant green, margined at base and on the sides with bronze. Length 2 1 lines; expanse of wings -U lines. Two specimens. Genus HOLOPYGA. Dahlb. Holopyga compacta. n. sp. Green, changing to blue: thorax deeply and coarsely punctured, abdomen more finely and closely punctured, short and compact; wings fuliginous, sub- hyaline at base. Brilliant green, slightly pubescent; head deeply and rather coarsely punctured, interspersed with fine punctures, occiput deeply tinged with bluish-purple; face concave, golden-green, transversely aciculate ; man- dibles piceous, green at base; antennae black, opaque, basal joint green. Thorax robust, broad and truncate behind, slightly narrowed and rounded in front, slightly tinged with bluish in certain lights; pro- and rnesothorax with rather dee}) and coarse punctures, interspersed with fine punctures; pleura, scutellum and metathorax with large dis- coidal punctures, much larger than those on the rnesothorax; posterior angles of the metathorax somewhat flattened, rather prominent and obtuse ; tegulae bronze-black. Wings fuliginous, subhyaline at base ; nervures fuscous. Legs green, tinged with bluish behind, clothed with white pubesceuce; tarsi blackish, claws pectinated, or with three or four short teeth between the base and apex. Abdomen short, rather broad, compact, quadrate, incurved, green, with a conspicuous deep blue reflection, deeply and closely punctured, and interspersed with fine punctures, the punctures on the apical segment coarse ; first seg- ment short and very transverse, the extreme base abrupt, somewhat concave, smooth and polished; second segment about twice as long as rlie first, convex; third segment longer than the second, bent down- wards, finely pubescent, broadly rounded at tip which is finely margined and very faintly emargin ate in the middle; venter concave, piceous and shining. Length 3f lines; expanse of wings 6 lines. One specimen. ISO.-).] 805 Genus HEDYCHRUM. Latr. I. Hedychrum Wiltii. n. sp. Green, with a deep bluish-purple reflection, very brilliant on the abdomen, which is polished and closely punctured ; head and thorax with dense coarse punctures: legs purple, tarsi obscure testaceous; wings fuscous, apical margins much darker. Head bluish-purple, strongly tinged with green on the face and ver- tex, deeply and closely punctured, clothed with short black pubescence ; face concave, finely and transversely striated; mandibles aud palpi piceous-brown ; antennae black, basal joint tinged with purple. Thorax uniformly, densely and roughly punctured, deep green, strongly tinged with bluish-purple in certain lights, especially beneath, thinly clothed with short black pubescence; posterior angles of metathorax prominent, flattened and subacute, strongly tinged with deep blue, deeply exca- vated beneath and finely aciculate ; tegulae brassy-black. Wings fus- cous, much darker on the apical margins ; nervures black. Legs bril- liant deep violet, tinged with green in front; the four anterior tibiae and all the tarsi beneath, obscure rufo-testaceous and sericeous; poste- rior femora short, dilated, pale brownish-sericeous in front, deep violet behind ; tarsal claws cleft at tip. Abdomen short, broad, convex, broadly rounded behind, polished, rather closely and deeply punctured, the punctures fine at base, becoming larger and deeper towards the apex, brilliant bluish-purple, with a deep green reflection, clothed on the sides and behind with short black pubescence; third segment about three-fourths the length of the second, the apical margin broadly rounded, entire, except a slight sinus on each extreme side ; venter coucave, bronze-black, shining. Length 6 lines; expanse of wings 10 lines. One specimen. It gives me pleasure to dedicate this superb species to my friend, Mr. Charles Wilt of Philadelphia, to whom the .Society is indebted for the specimen from which the above description was, taken. Mr. Wilt has two specimens of this species in his collection ; he received all of them from Colorado Territory. -. Hedychrum cupricolle, n. sp. Green; thorax above bright coppery-red. densely and rather deeply punc- tured ; head and abdomen more finely punctured, apical segment of the latter broadly rounded and entire: wings dark fuscous, paler at base. Brilliant green, somewhat golden, clothed with short black pube- scence; head closely punctured, slightly bluish on the occiput; antenna> dull black, basal joint green. Thorax densely and deeply punctured; the prothorax above, mesothorax, scutellum and disk of metathorax. bright coppery-red ; scutellum and metathorax with larger and coarser 306 [April punctures, the sides of the latter blue-green, the posterior angles pro- minent, long and acute; thorax beneath dark green; tegulao black. Wings fuliginous, subhyaline at base; nervures fuscous. Legs blue- green, pubescent; posterior femora short and robust, sericeous, blackish in front, greenish behind; tarsi blackish-brown, sericeous beneath, claws cleft at tip. Abdomen short, broad, rather convex, broadly rounded behind, brilliant green, somewhat golden, changing to blue iu certain lights, shining, very closely and finely punctured, the punctures becoming coarser towards the apex ; third segment shorter than the second, apical margin entire; venter dull blue-green. Length 4 lines; expanse of wings 7 lines. Two specimens. This elegant species may be at once recognized by the brilliant green color, with the entire thorax above bright coppery- red. 3. Hedychrum viride, n. sp. Green, densely punctured ; abdomen very finely punctured, polished, with a beautiful bluish reflection ; wings subhyaline, pale fuliginous at tips ; apex of abdomen entire but not broadly rounded. Green, sometimes tinged with golden, slightly pubescent; head and thorax very densely and rather coarsely punctured, the interstices be- tween the punctures finely punctured ; face concave, finely rugose, and when viewed from above covered with a short, dense, subappressed, white pubescence; this is, however, obsolete in one specimen; antennae dull black, basal joint green. Thorax with a slight bluish tinge in certain lights, the sculpture is very dense; metathorax tinged with golden, the posterior angles prominent and rather obtuse; teguke golden-green, with a few scattered punctures. Wings subhyaline, slightly tinged with fuliginous about the apical half. Legs green, somewhat tinged with bluish, thinly pubescent, subsericeous ; tarsi rufo-testaceous, claws with a short acute tooth between the base and apex. Abdomen short, rather broad, convex, polished, closely and finely punctured, brilliant green, with a beautiful blue reflection in certain lights; apical segment shorter than the second, more densely punctured, finely pubescent, the apical margin entire, obtusely rounded and friugec. with long whitish pubescence; venter bronze-black, green on the middle. Length 3| lines; expanse of wings 5| lines. Two specimens. Genus CHRYSIS, Linn. I. — Apical margin of third abdominal segment entire. 1. Chrysis integra, n. sp. Green, changing to blue, densely punctured; apex of abdomen subtruncato. entire; wings subhyaline. 1865.] 307 Female. — Elongate, subparallel, green changing to blue in certain lights, especially on the abdomen; head and thorax clothed with rather long black pubescence, deeply and very closely punctured; face not exca- vated behind the antenna 1 ; eyes smaller than usual and nearly circular; antennae green, blackish towards the tips; dorsal lines of the niesotho- rax well impressed ; posterior angles of oietathorax prominent, divergent and subacute; teguke green, minutely punctured. Wings subhyaline, fiintly tinged with fuscous; nervures fuscous. Legs green, with a beautiful violaceous reflection behind; femora clothed with long black pubescence; tarsi more or less blackish, clothed beneath with a very fine pale sericeous pile. Abdomen shining, with a beautiful blue re- flection in certain lights, clothed with short black pubescence, very closely punctured, the punctures rather finer than those of the head and thorax; dorsal middle of the first and second segments with a cen- tral, longitudinal ridge, not very well defined ; apical margin of the third segment subtruncate, entire, obtusely rounded on the sides, the margin flattened and slightly recurved, with a transverse row of small blue punctures before the tip; venter flattened, green changing to blue. Length 5 lines; expanse of wings 8 lines. One specimen. II. — Apical margin of third abdominal segment notched in the middle. '1. Chrysis densa, n. sp. Elongate, subparallel, dark green, covered with very dense deep punctures; posterior angles of metathorax prominent, subacute and somewhat hookrd : wings subhyaline; apical margin of abdomen notched in the middle and slightly sinuate on the sides. Female. — Dull dark green, very densely and rather deeply punc- tured, subopaque, clothed with pale pubescence, which is very short and sparse on the abdomen , face excavated behind the antenna), finely sculptured, and sometimes bluish; eyes rather large, ovate; antennae black, basal joint green. Thorax sometimes with a deep blue tinge ; dorsal lines of mesothorax not well defined; disk of metathorax slightly sulcate, the posterior. angles very prominent, depressed, acute or sub- acute and somewhat hooked or claw-shaped; teguhe green, finely punc- tured. Wings nearly hyaline, having a faint tinge of fuscous, especially in the marginal cell ; nervures fuscous. Legs green, changing to blue in certain lights; tibiae and tarsi clothed beneath with a fine pale seri- ceous pile ; tarsi blackish above. Abdomen covered with very dense, rather fine punctures, somewhat granulate, the punctures on the basal segment larger than on the other segments and nearly as coarse as those on the thorax; dorsal middle, especially of the second segment, 308 [Ai>ril with a central longitudinal carina, tolerably well defined; second and third segments with a more or less blue reflection, the latter rather broadly margined at tip, deeply emarginate in the middle and slightly sinuate on the sides, before the apex a transverse row of twelve deep punctures; venter concave, strongly tinged with blue. Length 4 — b\ lines; expanse of wings 62 — 82 lines. Four specimens. Readily distinguished by the dull green color and the very dense sculpture. :'.. Chrysis perpulchra, n. sp. Green: abdomen with a strong deep l>lue reflection; wings hyaline, tinged with fuscous about the middle; apex of abdomen deeply foveolated. Female. — Rather short, robust, brilliant green, with a slight tinge of blue, very closely and rather roughly punctured, thinly clothed with pale pubescence; face, behind the antennae, concave, transversely acicu- late and tinged with golden, a subquadrate space immediately beneath the anterior ocellus, enclosed by an ill-defined carina; eyes rather large, ovate; antennae blackish, subsericeous. the scape and two basal joints of the flagellum above, green. Thorax : anterior margin of the protho- rax transversely depressed with a longitudinal sulcus on the disk ; dorsal lines of mesothorax distinct, the space between them tinged with purplish; posterior angles of metathorax prominent, flattened, strongly divergent, and somewhat claw-shaped; tegulae bright green, punctured. Wind's fusco-hyaline, the apical margins and most of the posterior pair, hyaline; nervures black. Legs green, changing to blue in certain lights, pubescent; tarsi blackish, sericeous beneath. Abdomen rather short, robust, convex above, clothed with a very short, appressed, pale sericeous pubescence, very closely punctured, the punctures uniform and rather smaller than those of the thorax, brilliant green, the basal mid- dle of the second segment and all of the third, deep blue, tinged with purple; dorsal middle with an ill-defined longitudinal carina; apical margin of the third segment not broadly rouuded, deeply but obtusely emarginate in the middle, and before the apex a transverse row of deep fovese, the two central ones larger and deeper than the rest; venter blue-green, polished. Length 3| lines; expanse of wings 6] lines. One specimen. Easily recognized by the clouded wings and the conspicuously blue abdomen. III. — Apical margin of third abdominal segment with two teeth, L Chrysis scitula, n. sp. Golden-green, changing to blue in certain lights, closely punctured, shining: abdomen ovate, the apex produced in the middle and emarginate, sinuate on each side. 1865.] 309 Female. — Elongate, rather narrow, brilliant green, somewhat golden, with a blue reflection in certain lights, shining, closely punctured, the punctures rather coarse on the head and thorax, much finer on the abdomen, thinly clothed with pale pubescence; head a little broader than the thorax, the face behind the antenna; depressed and rugulose ; eyes large, ovate ; antenna; blackish, the scape golden-green. Thorax rather strongly tinged with blue ; dorsal lines of mesothorax distinct. ; posterior angles of metathorax prominent, flattened, divergent and sub- acute; tegula) green. Wings pale fusco-hyaliue, nervures blackish. Legs green, with a slight tinge of blue, pubescent; tarsi piceous. Ab- domen oblong-ovate, polished, convex, closely and rather finely punc- tured, the intervals between the larger punctures covered with minute punctures; basal segment golden-green, the remainder with a rather strong blue reflection, gradually narrowed to the tip which is produced in the middle and obtusely emarginate, the angles subacute, the margin on each side of the middle strongly sinuate or scolloped, giving the apical margin of the segment somewhat the appearance of having four projections, the two central ones prominent and subacute and the late- ral ones very obtuse and ill-defined ; before the apex there is a trans- verse row of deep punctures; venter bright golden-green. Length 3 lines; expanse of wings 4J lines. One specimen. IV. — Apical margin of third abdominal segment with three teeth. 5. Chrysis virens. n. sp. Green, abdomen blue-green; densely and deeply punctured; metathorax produced behind: wings subhyaline; apex of abdomen truncate, flattened, with a tooth in the middle and one on each side. Female. — Elongate, parallel, brilliant green, sometimes obscure ; head and thorax densely and coarsely punctured; face much depressed, golden-green, pubescent, and bounded above by a well-defined, trans- verse, undulating carina; cheeks acutely carinated; mandibles piceous. green at base; eyes large, nearly round ; antenna; black, the scape and two or three basal joints of the flagellum above, green; prothorax sili- cate on the dorsal middle; dorsal lines of mesothorax deeply impressed ; dorsal middle of the metathorax obtusely produced behind with a deep bluish fovea at base; the posterior angles flattened, large, divergent and acute; tegula; bluish. Wings faintly tinged with fuliginous, with a very slight violet gloss ; nervures blackish. Legs green, changing to golden and bluish ; tarsi blackish, pale sericeous beneath. Abdomen elongate, slightly narrowed towards the apex, convex above, closely and deeply punctured, the punctures not so coarse as those of the tho- 310 [April rax; green, with a deep blue reflection in certain lights; basal margin of the third segment broadly black, the apical margin truncate, broadly depressed, smooth and polished, margined anteriorly with a transverse row of deep punctures, with an acute carina down the middle, project- ing over the apical margin and forming a short acute tooth, the ex- treme lateral angles small and acute; venter deeply concave and green. Length 4 — 5 lines: expanse of wings ('».] — ~il lines. Three specimens. V. — Apical margin of third abdominal segment with four teeth. (5. Chrysis lauta, n. sp. Golden-green, densely punctured, thickly pubescent; wings hyaline: apex of abdomen with four subacute teeth, and before the apex a transverse row of subquadrate deep punctures. Female. — Lame, robust, elongate and subparallel, golden-green, densely and coarsely punctured, rather thickly clothed with short pale pubescence ; eyes very large, rounded, face narrow, depressed behind the antenna); a smooth shining space on each side of the posterior ocelli; mandibles black, green at base; antennae dull-black, sericeous, scape green. Thorax bright golden, somewhat tinged with coppery on the sides; disk of prothorax sulfate; anterior margin of mesothorax transversely excavated on each side, the dorsal lines distinct ; metatho- rax obtusely produced behind, with a smooth puncture on the disk, the posterior angles prominent, flattened, divergent, subacute and some- what claw-shaped ; tegulae golden-green. Wings nearly hyaline, having merely a faint tinge of fuliginous about the middle ; nervures very dis- tinct and black. Legs golden-green, pubescent ; tarsi blackish. Ab- domen elongate, convex, sides parallel, densely punctured, the punc- tures much finer than those of the head and thorax ; base of the seg- ments with a beautiful changeable blue-green reflection, the remainder golden-green, the extreme basal margins of the second and third sea:- ments black; apex of the third segment with four prominent equidis- tant, subacute teeth, and before the apex a transverse row of deep, transversely subquadrate punctures ; venter blue-green. Length 5ji lines; expanse of wings $] lines. One specimen. Before this large and elegant species was taken out of alcohol, most of the thorax, and the first and most of second abdo- minal segments, had a beautiful coppery-red reflection which vanished as soon as the specimen had been dried. 7. Chrysis prasinus, n. sp. Green, abdomen with a beautiful blue reflection ; closely punctured; meso- thorax with a central black stripe; wings nearly hyaline; apex of abdomen with four obtuse teeth and a row of very deep punctures before the apex. 1865.] 311 Female. — Subelongate and parallel, brilliant green, densely and ra- ther coarsely punctured, clothed with a rather thick and short, pale pubescence ; antenmedull black, the scape green. Thorax : disk of pro- thorax snicate ; dorsal lines of raesothorax well-defined and strongly di- verging anteriorly, the space between them tinged with blue, with a rather broad black stripe down the middle ; posterior angles of metathorax much depressed, prominent, divergent, subacute, and somewhat claw-shaped : tegulre green. Wings nearly hyaline, having only a faint fuscous tinge : nervures fuscous. Legs green, pubescent, blue behind, posterior pair blue-black behind; tarsi blackish above, testaceous beneath. Abdo- men brilliant green, with a beautiful blue reflection in certain lights, especially on the base of the second and third segments, very closely punctured, the punctures finer than those of the thorax; apical margin of the third segment with four not prominent, equidistant, obtuse teeth, and before the apex a transverse row of very deep punctures ; venter concave, blue-green. Length 4? lines; expanse of wings 7 lines. One specimen. s. Chrysis pulcherrima. n. sp. Green, very densely punctured, apex of abdomen azure-blue, the apical mar- gin with four very obtuse teeth: wings hyaline; face densely pilose. Mule. — Elongate, subparallel, brilliant green, somewhat golden, clothed with whitish pubescence ; head broader than the thorax ; eyes very large and rounded ; face narrow, depressed and densely clothed with appressed white pubescence ; clypeus tinged with blue ; man- dibles piceous, green at base; abdomen dull black, scape green. Tho- rax very densely and rather coarsely punctured ; disk of prothorax sulcate; dorsal lines of mesothorax distinct, scarcely diverging in front; posterior angles of metathorax promiuent, divergent and obtuse; teguhie golden-green. Wings hyaline, nervures black. Legs blue-green, pu- bescent ; tarsi blackish, sericeous beneath. Abdomen very densely punctured, the punctures finer than those of the thorax ; basal segment brilliant green ; second segment blue-green, with a faint central longi- tudinal ridge ; third segment deep azure-blue, the extreme basal margin purplish-black, the apical margin broadly rounded and armed with four very obtuse teeth, the two middle ones more approximate ; immediately before the apex a transverse row of shallow punctures; venter greeu. Length -k} lines; expanse of wings 6? lines. One specimen. 9. Chrysis venusta, n. sp. Green, changing to blue on second and third segments of abdomen, apex of the latter armed with four long acute teeth and deeply foveolated before : wings subhyaline. 312 [April Male. — Golden-green, densely and rather coarsely punctured, slightly pubescent ; head not wider than the thorax ; eyes rather large, ovate ; face behind the antennae flattened, and clothed with a dense, appressed, silvery-white pubescence, the depression bounded above by a well- defined, twice angular carina ; autennas opaque-black, scape green. Thorax : disk of prothorax sulcate ; dorsal lines of mesothorax deeply impressed, the space between them tinged behind with bluish ; poste- rior angles rather prominent and obtuse ; tegulse green. Wings sub- hyaline, having a slight fuscous tinge about the middle; nervures black. Legs golden-green, changing to blue in certain lights; tarsi fusco-testaceous. Abdomen short, rather broad and parallel, subconvex, closely and deeply punctured, those on the basal segment deepest ; ba- sal segment golden-green, sulcate on the basal middle ; second and third segments bluc-greeu, the latter segment about half the length of the former and much narrower, the apical margin armed with four long, acute, very prominent, equidistant teeth, and before the apex a transverse row of deep foveae, the two middle ones very large and deep, the others becoming small r and less deep towards the sides of the seg- ment; venter deeply concave. Length 4 lines; expanse of wings 6 J lines. One specimen. 10. Chrysis bella, n. sp. Blue-green, abdomen azure-blue; wings fuseo-hyaline, with a slight violet reflection; apex of abdomen with four long subacute teeth. Female. — Elongate, rather slender, pubescent; head broader than the thorax, closely and deeply punctured, green, vertex, occiput and cheeks tinged with bluish ; face, behind the antennae, much depressed, rugulose, and bounded above by a slightly arcuated, sharply defined carina; antennae dull black, the two basal joints green. Thorax closely and rather coarsely punctured; obscure green strongly tinged with blue and purple or azure-blue; prothorax narrow, dilated on the sides, with a shallow excavation on the dorsal middle; dorsal lines of the mesothorax deeply impressed ; posterior angles of metathorax promi- nent and subacute; tegular azure-blue. Wings fusco-hyaline, with a slight violaceous reflection; posterior pair nearly hyaline; nervures black. Legs green, reflecting blue and purple; tarsi blackish, serice- ous. Abdomen elongate, broader about the middle than at base, con- vex, very closely punctured, deep azure-blue, changing to i:recn in cer- tain lights, especially soon the sides; second segment with a well- defined, central, longitudinal carina ; near the apex of the third seg- ment, a transverse, very deeply impressed line which has a lew deep 1865.] 313 punctures, the apical margin armed with four prominent, equidistant, acute teeth ; venter deeply concave, bronze blue-black. Length 4 lines ; expanse of wings 7 lines. One specimen. This beautiful species may be readily recognized by the elongate slender form, by the deep bluish color and by the abdo- men being narrowed at base. VI. — Apical viargin of third abdominal segment with six teeth. 1 1. Chrysis clara, n. sp. Green, densely punctured, the head and thorax coarsely and the abdomen finely: wings subhyaline: apex of abdomen armed with six acute teeth. Female. — Elongate, subparallel, rather robust, brilliant-green, some- what tinged with golden, the abdomen with a slight blue reflection ; head and thorax densely and roughly punctured, slightly pubescent; eyes very large and subspherical; face behind the anteunfe much de- pressed, pubescent, rugulose and bounded above by a transverse carina; antenna; black, scape green. Thorax: prothorax with a shallow fovea on its dorsal middle ; dorsal lines of mesothorax well-defined ; posterior angles of metathorax prominent, flattened, strongly divergent, subacute and claw-shaped ; tegulse green. Wing- faintly tinged with fuliginous ; nervures blackish. Legs green, tarsi blackish. Abdomen robust, con- vex, finely and very closely punctured, the punctures much larger and deeper about the middle and extreme base of the first segment, which has a depression on the basal middle'; extreme basal margins of the second and third segments bluish-black ; apical margin of the second segment golden, that of the third armed with six long, equidistant, acute teeth, and immediately before the apical margin a very deep transverse line which has several very deep foveae ; venter deeply con- cave, and golden-green. Length 4J lines; expanse of wings 7i lines. One specimen. Description of a new species of Cuban LEPIDOPTEEA. BY CHARLES A. BLAKE. Papilio Grotei, nov. sp. Pap. Columbus. Gundlach. Herr.-Sch. Corr. Blatt. Zool. Min. Vereins. xvi, p. 141. (1862). Not Pap. Columbus, Hewitson, Trans. Ent. Soc. Lond. new ser. i, p. 98. (1851.) Female. — Anterior wings black, with a curved, broad, iridescent green band, extending from near the internal angle to the subcostal nervure, broadest in the middle and tapering towards the internal mar- gin ; three patches of the same color in the terminal interspaces be- 314 [April tween the third subcostal and first discoidal nervules. The base of the wings powdered with bright metallic blue atoms; cilia white at the ex- terior margins of the interspaces. Posterior wings black, with four bright scarlet patches in cells two to five, that in cell two broadly lunate, those in cells three and four quadrate with the outer margins lunated, that in cell three being the largest, the fourth being much smaller than the others, being simply linear ; a minute spot in cell four just above the scarlet patch, consist- ing of a few bright greenish-blue scales ; the base of the wings very sparsely powdered with bluish atoms j cilia white, and not extending round the tails. Under side, anterior wings fuliginous, with a green band somewhat less brilliant, broader, more diffused and not so sharply defined, and nearer the base than the one above; a white dash extending from the lower disco-cellular nervule near its junction with the second discoidal nervule. passing obliquely through the terminal portion of the discoidal cell to the costa. Posterior wings color of primaries, with the scarlet patches not as brilliant as above, occupying marginal spaces one to seven, those in two, three and four being bordered with white on the interior margin, the marginal interspaces terminating in white lunes. Abdomen black ; base of the palpi, sides of prothorax and trochanters scarlet, a row of spots of the same color on the sides of the abdominal segments, the anus surrounded with a tuft of short scarlet hairs. Expands 4 inches. The male differs from the female in having the median band some- what smaller, the three apical spots larger and more distinct, and the margins of the white dash on the under side more nearly parallel. The abdominal cavity luteous. fringed with hairs of the same color. Expands 3i inches. Bab.— Cuba. (Coll. Ent. Soc. Phila.) Two specimens from the original collection of Prof. Felipe Poey, of Havana, which collection was purchased and presented to the Society by the late lamented Dr. Thomas B. Wilson, thus placing the Society in possession of probably the most complete collection of Cuban Le- pidoptera extant. I take great pleasure in dedicating this distinct and elegant species to my kind friend Mr. Augustus R. Grote, of New York. 1865.] 315 Descriptions of North American LEPIDOPTERA— No. 6. BY AUG. R. GROTE, Curator of Entomology. Buffalo Soc. Nat. Science.-. (Communicated Jan. 9th, 1865.) CALL ALT/CIA. no v. gen. Head moderate, rather small as are the eyes which are not very full ; clypeus globose, swollen, projecting in front; two ocelli, before and between which the epicranium is roundedly elevated, rising to a ridge behind; maxillae moderately developed, when unrolled not so long as the thorax. Palpi slender, extending beyond the head, held nearly horizontally and on a plane with the body, third article somewhat de- pressed, not pointed. Antennas of the male somewhat shorter than those of the female, finely bipectinate, the pectinations tapering just before the tip and are more separated and fewer compared with the male antennae in Ctemccha. In the female the pectinations are stouter and shorter, bearing terminal setae. Legs unarmed and finely scaled. Abdomen somewhat exceeding posterior wings, quite similar in external conformation in both sexes. Anterior wings more than twice as long as broad, costal margin straight, slightly depressed before costal angle, external margin rounded, not very oblique, internal margin straight. Discal space open, sub- costal nervure arcuated before the apex, crowding the nervules together; first and second s. c. nervules approximate at base, third being short throwing off a brauchlet just before the margin, second thrown off be- fore the fifth on the opposite side of the vein, while in Otenucha it arises much beyond; apical interspace widening towards costa. fifth s. c. nervule thrown oft' directly from the nervure not removed as in Ctenu- chn towards the middle of the discal area. First and second median nervules united at base, second greatly nearer the first than the third, which latter is bent downwards, fourth much removed from third. .Sub-median nervure perfectly straight and parallel with internal margin. Posterior wings 9-veined ; discal space partially closed, the vein be- coming towards the center a mere thickening of the membrane. The costal nervure is perfectly straight, sending off immedi- ately at base the upper discal nervure which is slighter, nearly straight and throws off a nervule near external marein. Lower discal nervule (median) nearly straight; Posterior wing ° . . of Callalucia, the third m. nervule springing from the second, its origin natural size, removed further towards the external margin than that of the first. Sub-median nervure curvilinear, much removed from 316 [April median ; internal nervure arising from the base of the wing, straight. short. The ornamentation is black, with sub-cyaneous abdominal and alar shades ; the veins are black, regularly defining large white patches on both wings. The insect mimics the butterfly Stalachtis heliconide* H-S. The thoracic and caputal tegument, when denuded of scales, is pitch-black, shining, as are the veins. Where the wing scales are black the membrane beneath is of a pale blackish hue, where they are white it is pale-yellowish. The prothorax beneath and the anterior femora above are covered with orange-yellow hairs as in allied genera, but these do not spread on the occiput above. Allied to Ctenucha Kirby, than which T consider it of higher value. Iu that genus the % antenual pectinations are more numerous and the stalk longer. The palpi in Callalucia are shorter, not so flexuous and the third article is differently shaped, though somewhat similarly held. The nervulation differs much from Ctenucha, since the third s. c. uer- vule is furcate, discal space open. In Ctenucha the posterior wings are 7-veined, first, second and third nervules of the lower discal vein spring- ing from one point and the costal and internal nervures arc wanting. Callalucia vermiculata. Omoiala vermiculata. Grote, Proc. Ent. Soc. Philad., Vol. 2, p. 334, PL 6, fig. 1 I . (Dec. 1863.) S 9 . Anterior wings dull black ; a small white spot on median vein at base ; a large sub-triangular space on the disc of the wing, neatly divided into three by the black median vein and its first inferior branch ; a large oblique sub-apical white spot on the terminal space divided by the black veins likewise into three, in the interspace between is a smaller rounded similarly colored spot; fringes blackish; under surface resem- bling upper. Posterior wings black with a very slight sub-cyaneous tinge; the center of the wing is covered by a large white space, divided by the black veins, under surface resembling upper ; fringes blackish with a few whitish scales. Head covered with blackish hairs, with a white spot on the vertex between the antennae ; palpi black, with a few yel- lowish basal and scattered scales ; prothorax beneath covered with orange yellow hairs which extend along the upper surface of anterior femora. Thorax black ; tcgula? black tipped with a few white scales. Abdomen black with a distinct sub-cyaneous tinge, wanting beneath, and a lateral prominent white line. Exp. 1.80 — 2.00 inches. Length of body .60 inch. Habitat. — Colorado Territory. (Collection Ent. Soc. Philad.) 1865.] 317 Mr. James Ridings has taken numerous male and female specimens of this handsome species during a late excursion in Colorado Territory. I figured it primarily from a singular individual obtained by the Soci- ety in L863, and which being a unique could not be properly exam- ined so as to determine its affinities which are plainly with Ctenucha and allies, forming one of a group of genera from tropical and tempe- rate America, in which the simple antenna stalk offers a distinctive feature from Zyg&na, Ali/pia, and others, but united with these in a single family — Zyii'amidae — by Dr. Packard, iu a late treatise. " Glaucopis latlpennis Boisd," Morris Syn. N. A. Lep. p. 136, may belong to the present, or perhaps to the following genus. I have not seen the species. EUPSYCHOMA. nov. gen. Wings ample and full. Anterior pair less than twice as long as broad, costa straight, not depressed sub-apically, external margin rounded, internal margin nearly straight, longer than in allied genera. Second and third s. c. nervules bent upwards towards the costa, not depressed as in Ctenucha, third not furcate as in Callaluoia; discal cell open and there is a small sub-costal closed cell absent in both of the above men- tioned genera ; first, second and third median nervules arising near together, equidistant at base, not as in Ctenucha arising from one point. Posterior pair large and full ; external margin much rounded, exceed- ing the abdomen by a quarter of the length of internal margin ; discal cell open ; first, second and third nervules of the lower discal nervure springing near together at base. Head small, not so free from the thorax as in allied genera ; maxilhe slender, short; palpi short, third article much depressed. Body slen- der; abdomen short, genital armor exposed underneath, consisting of a broad large triangular piece terminating ki. a long recurved hook-like process, resting above between two anal fbrcipated pieces. The ornamentation is different from Callalucia and Ctenucha, want- ing all metallic tinges, the collar is furnished with orange yellow hairs not spreading beneath, wings black with well-defined whitish bands and spots, costae yellowish, posterior pair immaculate black above; ab- domen blackish, non-metallic, with yellowish lateral scales on the seg- ments, and at the anus, while the neuration differs throughout. A Zygfenid genus allied to Ctenucha. and presenting some analogies in the neuration to Eudryas, represented in the Collection of this So- ciety by a single individual, destitute of antennse, collected by Mr. James Ridings in Colorado Territory. 318 [April Eupsychoma geometrica. n. sp. (Plate 2, fig. 1.) Wings and veins dull blackish, latter testaceous when denuded ; a rounded moderate whitish spot on the disc, a longitudinal lower broad whitish band from the base of the wing parallel with internal margin, terminating abruptly after having traversed three-quarters of the length of the wing ; a subtermiual oblique broad similarly colored band nar- rowly divided interiorly by the median nervules. Costa beneath, and costal edge at base, showing scattered yellowish scales ; under surface same as upper, except that the longitudinal band above internal margin is interrupted at base where it is slightly yellowish. Posterior wings concolorous, dull black, immaculate; beneath similar, with a super-anal whitish rounded spot. Head and palpi clothed with rough blackish hairs, tongue dark tes- taceous ; prothorax black, broadly edged with deep yellow. Legs blackish, streaked with whitish on the tibiae. Abdomen dull black with lateral pale yellowish markings on the segments and at anus. Thorax and teguh'e black, latter clothed with long fine hair which is white on the sides. Exp. 1.50 inch. Length of body .4o inch. Habitat.— Colorado Territory. (Coll. Ent. Soc. Philad.) The Lepidopterous fauna of Colorado Territory is rich in Zygsenid for in s ; we have Callalucia vermiculata Grote. Eupsychoma geometrica Grrote and Anatolmis Grotei Packard, all structurally very distinct and original genera, while the Territory affords also representatives of our Eastern Zygsenid genera since I have from thence a specimen of Scep- sis fulvicoll 'is Walker, undistinguishable from our specimens from Can- ada and the Eastern States, except that the " collar" is of a paler yel- low, and quite distinct from the Californian species described but not named by Dr. Packard in his paper " Notes on the Family Zygsenidae" p. 43, and which latter may be named Scepsis Packardii. Dr. Pack- ard thus describes the latter species : " The specific distinctions are these ; a light tint of brown, a brownish abdomen, instead of deep blue. and a more hairy thorax than in S. fulvicollis, while in size, the two species are much alike." The genus Ctenurha Kirby. is represented in Colorado by C. Oress- onana Grrote, structurally identical with our Eastern C. virginica Charp. sp.. while Alypia Hubner, is represented by A. Ridingsii Grrote. so that I feel confident from information and already collected material that this family will be found extensively represented in Colorado. This distribution of Eastern genera among Territorial forms is in- teresting as regards the geographical distribution of genera on this Continent. Plusia simplex G-uenee. occurs in Colorado and other spe- 1865.] 319 cies of the genus structurally identical with the Plusias from the At- lantic States and Europe. I have also specimens of an undescribed Bombycid genus before me. which at first sight I had inclined to believe peculiar to the Territory, since when I have received representatives of the genus taken on Long Island and in Pennsylvania. The Geome- tridse of Colorado and the Noctuidiz will be found also well represented I infer from what material T have seen. Plateea H-S. among the for- mer is an original form, Heliocheilus (Irote. among the latter. The Bombycid* are less numerous, in which we have Ooluradia Pandora Blake, though both this family and the Sphiugidae seem poorly repre- sented, of the latter Deilephila lineata, apparently common to both the New and the Old World, is the only species which as yet has been brought from the Territory. A small collection of the larger Lepidoptera which I examined last year in St. Louis, Mo., offered nothing original, the species being those commonly met with on the Atlantic Coast ; while I took in the vicinity of the city in early October specimens of the very interesting Poecilop- tera compta Clemens, differing slightly in ornamentation from Dr. Clemens' description, but I think specifically identical with the Texan species. It has been already noticed that Southern forms extend to a greater distance up the Mississippi Valley than on the Atlantic Slope. P. compta clings to the stems of plants in dull weather, not willingly flying, and may be readily shaken off into the collecting bottle. The sexes do not differ. The wings are folded round the body when at rest ; in coitu the ani are firmly adherent, the sexes resting in opposed posi- tions. At Rock Island, 111., I identified specimens of the very interesting Harrisina Sanborni Pack., taken by Mr. Walsh in that vicinity. Mr. A. Bolter has sent me a series of Lepidoptera for determination, the occm*rence of certain of which in die vicinity of Chicago is inter- esting. Darapsa myron Cram, sp., Smerinthm juglandis A. k S. sp . Sphinx brontes Drury. represents the Sphingidre in this collection. It is to be remarked that Dr. Clemens does not cite Boisduval's figure PI. 15. fig. 6. either in his synonymy of Drury's S. brontes. or to Cera- tomia repentinm Clem., which appears to be the same species. The larva is destitute of thoracic horns, as is not Ceratomia i-cornis H., as far as I recollect from specimens bred some time since, which I found numerous on the common lilac on Long Island ; I had been preparing a paper in which I attempted to show from dissections its position in the family. I am at present inclined to regard it as a low form of Sphinx, approaching Ceratomia, and therefore Smerinthm and the 320 [April Bombycidae, in imaginal structure; the larva of Oeratomia quadricor- nis influenced by the near approach of the latter family simulates that of Citheronia. Among the Noctuidae are Raphia /rater Grote, Eurois latex Gruenee, sp., Gallopistria monetifera Guen. sp., Noctua O.-nigrum L., N. bicar- nea Gruenee. Philogophora iris Guen.. Zj/lophasia lignicolora Guen., Alaria gaurse A. & S. sp., Anthoecia Spraguei Grote, Heliothis um- brosus Grote; (I am still uncertain that the latter is identical with the European IT. armigera Hub., the Chicago specimen being quite stout and large and more distinctly marked than my single European speci- men, and I shall be glad to discover and compare the history of our American species with its foreign representative). Catocala palseogama Guen. and C. amatrlx Hiib. (= C '. selecta Walk.), the latter repre- sented by an apparent variety which I have observed in both % and 9 , in which on the basal space, and again over the reniform spot across the terminal spaces to external margin, the anterior wings are strongly suf- fused with dark brownish shades. This form has the appearance of a distinct species. There is also a specimen of 0. desperata Guen., a near ally of C. vidua A. & S. sp., but a quite distinct, less robust, purely mixed greyish species, and which is more common in the Eastern and .Middle States than C. vidua, of which latter I have a specimen accord- ing with M. Gueuee's identification from New Orleans. I have seen in Collections specimens of C. desperata frequently labelled C. vidua, — the material in the Collection of the Entomological Society assures me however that these species are perfectly distinct. Specimens of Arctia virgo Linn, sp., Arctia arge Drury, sp., Spilosoma virgin ira Fabr. sp., Spilosoma nov. sp.. Halisidota cart/se Harris, sp., Nadata gibbosa Abb. & Sm. sp.. Tolype velleda Stoll. sp.. Limacodes scapJia Harris, and Grluphtsia trilineata Pack., are among the Bombycids. CIRIS, Grote. Ciris Wilsonii, Grote. I have as yet seen merely the typical specimen of this beautiful spe- cies which I described in 1863, dedicated to the late learned Dr. Thos. T5. Wilson. It would appear that the specimen is a male, though T cannot be certain of the fact. As Eudryas Wilsonii, it would disturb the homogenity of the genus since it differs from E. grata and E. unio in the •' ultimate structure" of some of its parts. I regret that T have not sufficient material to determine its position with more certainty than at present. The strongly pectinated antenna?, which are also stouter and shorter, are very distinct from the nearly simple slender antennae 1865.] 321 of Eudryas} the coloration also differs, since in Eudryas the abdomen and posterior wings are yellow, discolorous with the white anterior wings, and this seems to be the case likewise in Eudryas Stse. Jolian- nis Stephens, an as yet apocryphal North American species described by Mr. Walker in 0. B. ML Noct. p. 144. In Ciris Wilsonii the hind wings and abdomen are white, concolorous with the fore wings; the abdomen is more compact and cylindrical and clothed with longer and denser nnieolorous hair, not tufted except on second basal segment, and relatively shorter than in Eudryas. I regret that I cannot say anything positively as to the neuration, as the scales hide it and I do not wish to mutilate the single specimen, but it does not appear to differ greatly from Eudryas. The shape of the wing is not sufficiently distinct from Eudryas, the moth resembling E. unto very nearly in this respect. The whole insect appears to me stouter, the head larger and the palpi more closely applied to the front, while the thorax is more elevated than in either of the species of Eudryas. This species tends to confirm Dr. Packard's reference of the group to the Zygaenidae. The habits of Eudryas are however quite different from Alypia, with which latter genus Dr. Packard associates it. The species are nocturnal, as far as my experience goes, entering the window at night in company with Xoctuidaa and Notodontida?. In the daytime T have found E. grata frequenting the outside of leaves, curiously enough courting the sunlight, and on fences, etc. At this time it can be easily pinned without attempting to escape, and I have never observed either species flying during the daylight voluntarily as do Alypia and allies. The imaginal habits must thus be regarded as a fresh character in ad- dition to its numerous analogies with the Notodontians. and while the larva mimics a higher genus — Alypia — I regard the bulk of its charac- ters as indicating a lower position in the Zygasuidae, distinct as a group from the Castniares from which the simple antennal stalk seems to divide it. The antennal characters ally it more closely with Ctenucha and allied genera, since in Ciris the pectinal structure is quite similar to £ Ctenucha, consisting of numerous close converging joints, though I do not detect as yet the presence of any terminal setaj. In consider- ing this difficult genus it seems to me that we have to do with a group of genera, of which I indicate Eudryas and Ciris from America and Ovios and JEyocera from Africa. The affinities of Eudryas with Aly- pia have been very carefully explained by Dr. Packard in the recent able treatise already alluded to and from which I have derived much information and taken many new ideas. 322 [April CROCOTA. Hiibner. Crocota Treatii. n. sp. Bicolorous. Anterior wings of an even dull leaden blackish color, concolorons ; costal edge marked with a crimson stripe which becomes obsolete towards the apex. Posterior wings crimson, no discal spot, the s. c. vein marked with blackish scales ; terminal baud very wide, continued, broadest at costa, resembling anterior wings in color. Under surface resembling upper. Head in front blackish, behind with a crim- son line which extends laterally to the bases of anterior wings : thorax legs and under surface of abdomen blackish; palpi short, but slightly projecting beyond the head, blackish, the basal joints clothed witli crimson hairs; abdomen above crimson with a broad dorsal segmentary series of black maculations. % . Exp. .90 inch. Habitat — Lawrence, Mass. (Coll. Mr. James 0. Treat.) The difficulty experienced in limiting the species of Crocota, owing to their great variability, should deter entomologists from erecting new species based simply upon the condition of the normal bands and spots which ornament the buff, or fawn and rose-colored species, but C. Treatii is not easily to be confounded with any of these than which it is more brilliantly and distinctly colored and offers a structural difference in the much reduced palpi compared with C. rubicundaria with which it presents a similar abdominal conformation. The discovery of the pre- sent species indicates the position of the genus among the Lithosiidae (Lithosiina ll-S.i, where T had at first referred it in describing C. optlla m.. while the Arctiid affinities of the stouter species are evident. I name this pretty species after Mr. James 0. Treat, whose entomo- logical merits deserve acknowledgment. CALLOCHLORA, Packard. Callochlora viridis. Limacodcs viridufs, Reakirt, Proe. Ent. Soc. Philad., Vol. 3, p. 251. (Sept. 1864. i Callochlora vcrnata, Packard, Proc. Ent. Soc. Philad., Vol. 3. p. 339. (October 1864.) Parasa viridc, Reakirt, Proc. Ent, Soc. Philad., Vol. 3, p. 441. (Dec. 1864.) Bab.— Middle States. (Coll. Ent. Soc. Philad.) Some two years since I communicated the present species to Dr. Packard, who has given a full description of this North American genus and species as cited above. CYRTOSIA, Packard. Cyrtosia ocellata. n. s. (Plate 2, fig. 2. % .) Anterior wings very pale brown, largely shaded at base and internal margins with bright ochraceous. The two lines joining the internal margin dark brown, equi distant, merged superiorly in a diffuse oblique 1865.] 323 brown costal shade. Surmounting the internal angle are four super- posed white spots, all ringed with dark brownish, of which the upper and lowermost are much reduced, the former probably sometimes obso- lete, as it is on one side in the present individual, though the encircling brown ringlet is present ; the two central spots are distinct, large, irreg- ularly rounded, the lower the larger; a geminate terminal brown line. Fringes ochreous, interrupted with paler towards the tips. Posterior wings dull brownish, pulverulent, without markings; fringes ochrace- ous, interrupted with a paler shade towards the tips, ruder surface ochraccous brownish, paler along external margin of anterior wings. Head, thorax and tegulse pale ochraceous, the latter the darker. Abdo- men darker than legs, latter concolorous with thorax. % Exp. .95 inch. Hob.— New Jersey. (Coll. Ent. Soc. Philad.) I think this is distinct from Dr. Packard's C. geminata and C. albi- punctata ; it is a darker colored insect than the former, which it most nearly resembles, while the four ringed white spots on internal angle offer a distinctive feature from both these species, than either of which it appears to be larger. LEPTINA. Guenee. Leptina formosa. n. sp. Anterior wings mostly whitish, costal margin straight; the whitish humeral space, with a faint roseate tinge, instead of being confined to its customary place in the genus, spreads along the costa and especially at the center about one-half the entire length of the wing, irregularly margined with a blackish shade, to the reniform spot, which latter is of the normal shape, ringed with a darker line, somewhat indistinct. A pale aereous brown shade occupies a large space on internal mar- gin, darker where it margins the basal whitish shade, and extends from near the base to the subterininal line at internal angle, showing a few scattered black scales. The transverse lines are crowded together towards the external mar- gin, the t. a. absent ; subterininal line whitish, broad, margined by two narrow blackish lines of which the internal is dentate towards its center, most distinct at internal angle where it is narrowest, becoming confused above in the greyish white shade that fills the subterminal space. Termi- nal line blackish, evenly curved, very distinct and further removed from the margin than in the other species of the genus, margined out- wardly by a linear pale shade. Posterior wings pale blackish, immac- ulate. Under surface of both pair similar to upper surface of posterior wings, concolorous. immaculate. 324 [April Head larger, more prominent than in the allied species, whitish be- tween the eyes; maxillre well developed; palpi long, erect, applied against the front, third article long, entirely visible above the head ; antennae long; thorax stout, pale brownish, sides of tegular and meta- thorax whitish ; abdomen very slender, exceeding the posterior wings, very pale brownish, whitish beneath, slightly crested on second basal segment. S . Exp. 1.20 inch. Ihih. — Lawrence, Mass. (Coll. Mr. James 0. Treat.) Dy far the most prominently marked species of the genus. Differs strongly from its congeners by the long erect palpi, the distended hu- meral spot which crowds the transverse lines towards the external mar- gin and the large punctate sub-metallic space on internal margin ; the undersurface shows no sub-apical demi-line as in L. Doubledayi G-uenee, which L.formosa resembles in the straight costal margin. This spe- cies of Guenee's appears to vary from brown to blackish in the darker shades of the anterior wings. GORTYNA. Ochsenheiiner. Guenee, speaking of his Gortyna rutila, says : " (''est probablement cette espece que Duponchel dit si voisine de la Flavago dans son sup- plement," Noct. 1, p. 123. Harris, in describing his Gortyna leucos- tigma, says, ''The moth closely resembles the Gortyna flavago of Eu- rope, but is sufficiently distinct from it." The coincidence of the above remarks, I not having seen the Euro- pean species, together with Dr. Harris' short description and his ex- pression " white spot," in referring to certain spots on the anterior wings, made me believe (Proc. Ent. Soc. Philad.. Vol. 2, p. 432) that the de- scriptions referred to the same species which I have frequently met with and which is very recognisably figured by Guenee. Since seeing a European specimen of G. flavago W-V., which I have unfortunately not been able to retain for comparison, I find that Dr. Harris undoubt- edly intended G. cataphracta Grote. or a species nearly allied to it. since the latter species resembles the European G. flavago very closely, though it is I think distinct. Since I find that Dr. Herrich-Sch;effer records a Eui'opean Gortyna leucostigma, referred by Gueuee and Walker also to the genera Hydrozciq and Apamea, the name proposed by Dr. Harris cannot fail to cause confusion, and in the additional un- certainty of the species intended had better give way to the subsequent name proposed by myself. There is a second undescribed species allied to G. cataphracta m. and differing chiefly in the straight transverse posterior line. 18Gr>.] 82o Having determined specimens in collections hitherto as G. leucos- tigma Harris, this name should he changed where I have so used it, to G. rutila Guenee. I have elsewhere shown, after examining Dr. Harris' specimens, that Gorttjna ze.se, Harris, is Achatodes sandix Guenee, and Harris' name having priority while the genus is quite distinct from Gortyna, our species should be known as Achatodes zese. Our species of Gortyna I understand at present are as follows I shall take an early opportu- nity, so soon as I have obtained sufficient material, to fully illustrate and fix our American species. cataphracta Grote. leucostigma Harris ? nov. sp. rutila Guenee. marginidens Guenee. var ? rutila. limpida Guenee. cerussata Grote. nebris Guenee. nitela Guenee. ( hving to the want of fixity in many Noctuid genera, care should be taken by naturalists to avoid the repetition of specific names in the group. RIPOGENTJS nov. gen. Head somewhat sunken ; thorax moderately elevated; antennae shortly bi-pectinate to two-thirds of their length, moderate, rather short; tegulae short and square behind. Palpi free, projecting before the front, third article obtuse. Abdomen conical, obtuse, exceeding posterior wings somewhat, two anal lateral hair-tufts. Wings narrow ; costal margin of anterior wings straight, internal margin short, undulate ; external margin very oblique, forming a slight tooth at near the apex, below which at extremity of first and second median nervules it forms a second strong outward tooth, the point of which lies in an obliquely straight line from apex, and below which the margin is conversely very obliquely excavated to internal angle. Hind wings moderate, slightly dentate along external margin which is deeply excavate at anal angle. Legs short, armed, well clothed with strong pubescence. The sexes difficult to distinguish. I have not examined the nervulation of this Noctuid genus allied to Eutelia Hubner, and belonging to M. Guenee's family Eurhipidse. The nervules of posterior wings seem very long, discal cell retreating. I hope to be able to obtain further material for dissection ; the squam- mation being close obscures the veins too much to make any pterogostic diagnosis from specimens I am not permitted to retain. 326 [April The shape of the wings distinguish it from Ingura, and the more sunken head and less elevated thorax from PenciUarla. The ornamentation is peculiarly beautiful. Various rich shades of brown are intersected by bluish white narrow lines, a large apical white patch • within, the posterior wings are white, diaphanous, as in the other genera of this group. Ripogenus pulcherrimus. nov. sp. Anterior wings reddish-brown, the lines narrow, neat, bluish white, median space with a distinct pale bluish patch between the median lines interiorly, a large well-defined whitish apical patch. Basal line indistinct; transverse anterior bluish white, with darker edges, below the s. c. vein forming a single rounded curve, outwardly margining an oblique oblong dark claret-brown spot which is surrounded on the inner side by a similar bluish line. Between this spot and the base, the wing is duller but similarly shaded, becoming more reddish at costa. Median space reddish brown, very large above, narrow below, since the trans- verse posterior line originates very near the apex and below the s. c. nervure runs very obliquely to internal margin. Orbicular spot waut- ing, renifonu bilobed, narrowly elongate, distinct, consisting of a black- ish point above constricted to a pale line at the center, which line sur- rounds a small rounded space, darker than the wing, below. Veins marked with whitish below the disk and in terminal space. Immediately on internal margin is a white sub-triangular spot below the bluish space which extends between both m. lines interiorly, and beyond, approximate to the t. p. line, is a round yellowish well-defined smaller spot. Terminal space dark claret brown, subterminal line appa- rent at internal angle, and joining the t. p. line at just below the costa where it forms a broad whitish mark on the line, and encloses a some- what analagous space to that on the basal space margined by the t. a. line ; fringes greyish, interrupted with brownish ; costa marked with whitish. Under surface confusedly marked, t. p. line apparent, brown- ish ; the wing is whitish along internal margin, in terminal space and particularly at the apex, discal spot apparent. Posterior wings white at base and along internal margin, a subter- minal broad angulated blackish band bent below costa, external margin brownish, discal spot faint, covered by anterior wings when expanded, owing to the retreating disc. Under surface whitish crossed by narrow faint dark lines, discal spot distinct, brownish. Head and palpi rich brown. Tegulae paler, like upper median space in color, with terminal pale lines. Thorax clothed with long rich vinous brown hairs, which color spreads over the basal four segments of the 1865.] 327 abdomen above, distinctly contrasting with the paler color of the ter- minal segments. A few long white hairs at the base of the thorax and on basal abdominal segments. Under surface of thorax clothed witb long white hair ; femora and tibiae externally brown, tarsi white, spot- ted with brown. Exp. 1.25 inch. Length of body .50 inch. Halt. — Hoboken, New Jersey. Two specimens. •■On trunks of hickory trees." Communicated to me by Mr. A. Hochstein. ACONTIA, Ochsenheimer. Acontia metallica. nov. sp. (Plate 2, fig. 7.) Anterior wings white; posterior wings entirely rather pale yellow. At the costa at base a short blackish band more or less covered with steel colored sub-metallic scales, which is sometimes continued below the disc when it joins a broad subterniinal continued dark ferrugi- nous band which is bordered inwardly with yellowish olivaceous and shows some sub-metallic scattered scales forming irregular lines. This band commences on the costa at apex staining the apical fringe and leaves but a narrow portion of the lower terminal margin white ; basal internal margin white ; a costal spot beyond the disc, sometimes obso- lete ; a row of terminal dots ; lower fringes white. Posterior wings yellow with a more or less continued terminal rather wide blackish band; fringes yellow Under surface of both pair of wings yellow, anterior pair largely marked with blackish in the center and in sub- terminal space, posterior pair immaculate except a costal spot some- times obsolete. Abdomen above very pale yellow, immaculate, beneath white, with rows of central and lateral black dots, not exceeding posterior wings. Head and "collar" blackish; palpi fringed with yellowish hairs; tegube white ; thorax furnished with blackish sub-metallic scales forming a large tuft behind; legs white marked with blackish, anterior tibiae entirely blackish. Exp. 1.00 inch. Hob. — New Jersey. Two specimens. My figure represents that form of this species in which the basal band is not continued below the disc to subterniinal band. This large species mimics the genus JEJud?\yas, in its ornamentation and coloration. It resembles the description of Acontia delecta Walker, but differs as follows; there are no blue shades on anterior wings, the submarginal band is not forked at the tip nor bordered by ferruginous but by a vivid yellowish (dive-green ; the coloration of the under surface is the same as that of the upper surface of posterior wings. The habitat of Mr. Walker's species is unknown. 328 [April HELIOCHEILUS, nov. gen. Head smaller, clypeus move globose and prominent than in Heliothis Ochs., to which it is intimately allied but differs very distinctly by the pterogostic structure, principally of the male. Palpi short and slender, third article exceeding the front, held much as in Heliothis. Thorax well elevated anteriorly ; antennae simple and slender in both sexes ; abdomen exceeding posterior wings. Wings broad and short; anterior pair hardly a quarter longer than broad; in the male the costa is greatly and suddenly swollen at the middle, above the disc; costal margin convex. The costal nervure curvilinear, slight, joining the costa immediately beyond the costal swelling. Sub-costal nervure stout, appearing longitudinally furrowed. greatly bent downwards at the disc. The first s. c. nervure sent out before this depression, joining the costa just beyond the swelling, form- ing the upper margin id' a large oblong cell, open to costa. The discal is open, and brought nearer the middle of the wing by this abnor- mal cell than which it is hardly larger. The second, third and fourth nervules originate near together and are much curved. The sixth originates further from the nervure than in Heliothis. The firs! and second median nervules Anterior wing of % are near together at base, third further removed. In Heliocheilus en- , _ . ' ,, . . . . , ,.„ , lareed. IUC female the neuration is considerably modified, and. as far as I can judge from a single specimen which I have not des- ■d. the abnormal condition of the % s. c. nervule is entirely absent. nor is the costa swollen. Indeed, except in the shape of the wing of the 9 Heliocheilus, I am unprepared to give any differences of neura- tion between it and 11 liothis. In the % and $ posterior wings the neu- ration is not sensibly modified from Heliothis. The ornamentation is cpuite similar to that of Heliothis armig< ra Hiibner, the American specimens of which I have described, under the impression that they constituted a distinct species, as Heliothis umbro- sus* Indeed were it not for the proportionally broader and stouter wings and striking divergence of male neuration, one might readily mistake the moth for a dwarfed form of H umbrosus. This very remarkable Noctuid was collected by Mr. James Ridings in Colorado Territory, in two % and one female individuals, the males differing slightly from one another in the distinctness of coloration and ornamentation, both agreeing structurally. * This species has been found very destructive to the Cotton Plant in its larval state, as I have been informed by Mr. Glover of the Agricultural Bu- reau. 1865.] 329 Heliocheilus paradoxus, n. sp. (Plate 2, fig. 3 % , 4 9, 5 9, reverse.) 9 . Entirely pale testaceous, fore wings and thorax darker, more yel- lowish, hind wings and abdomen paler. Anterior wings palest in terminal, darkest in subterminal space, which latter is bordered inwardly by the transverse posterior line, the latter blackish, quite distinct, regularly dentate between darker points on the veins ; reniform and orbicular spots sub-obsolete; transverse anterior and basal lines obsolete; a terminal series of black dots be- tween the veins ; fringes palish. Under surface whitish testaceous, a large distinct black discal spot and a smaller nearer to base, correspond- ing to the reniform and orbicular spots of upper surface ; a distinct subterminal blackish band. Posterior wings silky pale testaceous, a broad pale blackish border interrupted about the center, and a blackish discal spot. Under surface very pale testaceous with a single blackish mark on external margin at the extremity of the third lower discal nervule. Legs testaceous, under surface of abdomen and thorax whitish testa- ceous. Thorax and head above dark testaceous. Exp. 1.10 inch. Length of body .55 inch. S . Resembles female; the membrane of both cells is very sparsely covered with squammation ; the spot on the under surface of the posterior wings is wanting and the whole insect rather more indefinitely marked. Exp. 1.10 to 1.00 inch. Length of body .5,") to .•">!) inch. Owing to the dissimilarity in the neuration between the sexes 1 was with difficulty convinced that the single female specimen belonged here. The coincident ornamentation and proportionate shape of the wings — costa very full — satisfies me however that this is the case; while my kuowledge of the group does not afford me a parallel to this singular genus. EULEUCYPTERA, nov. gen. Allied to .1 ntha cia and Ileliothis, differing from both in the depressed costal margin and more produced apices of anterior wings. The abdo- men is shorter, as long as", but hardly exceeding the posterior wings ; ovipositor exerted in the female. Legs without terminal spines on an- terior tibiae as has been noted of Anfhacia. I have but a single female specimen before me, the ornamentation of which is peculiar. The fore wings are lustrous satiny white with pale greenish markings disposed similarly to Anihoeeia. I have been thus unable to make any dissections, but can plainly perceive that the neu- ration is modified from either of these genera, and have no hesitation in establishing it as distinct. 330 [April Euleucyptera cumatilis, n. sp. (Plate 2, fig. 6. 9-) Wings satiny white; anterior pair with an arcuated pale greenish sub-basal band bordered outwardly obsoletely by the t. a. line. Median space entirely pure satiny white. Reniform spot reflected from under surface. T. p. line running much as in A. Packardii; above excavated, making the m. s. widest at costa, and approaching the t. a. line below median vein, making the center of the m. s. the narrowest ; undulate, composed, in common with the t. a. line, of dark interrupted scales. Similar colored greenish scales to those covering the sub-basal space clothe the subterminal space. Subterminal line wide, white; terminal space covered with pale greenish scales; fringes satiny white except at apex where they are distinctly brownish. Under surface largely marked with dull blackish, white along internal margin and narrowly so on costa; two large ill-defined discal spots. Posterior wings satiny white with discal spot and narrow terminal greenish band; fringes white. Under surface resembling upper, the terminal band reduced. Body clothed with white hair as are the legs, on the vertex the hairs become slightly testaceous ; thorax white. Maxillae well developed. Antennae simple, rather stout. Exp. 9 l.OO inch. Hab. — Colorado Territory. Mr. James Ridings. (Coll. Ent. Soc. Philadelphia.) The coloration of this pretty species reminds one somewhat of G/ia- myris cerintha Gruenee. It is part of Adam's task that we arc fulfilling in naming these in- sects, and in doing so we perform but a single duty of our intellect. But when we shall have reduced into language the expression of the properties and appearance of these beings, we arrive at a point beyond which we cannot be said truly to understand their Life, and in this connection the "Life of Insects" seems to me an improper title to a book. It is that we may communicate with each other about these fellow-inhabitants of Earth that we name and describe them; we can open no communication with them themselves, who go only about their own business and on this account perchance alone can have no sympa- thy with men. Some such thoughts came to me on the sands, facing the sea-mists, knowing not whither I was drifting and watching from time to time Cicindela dorsalis Say, certain of which shared this igno- rance with me, for I afterwards filled my collecting bottle at their expense. CONTENTS. Descriptions of three new species of Canadian Nocturnal Lepi- doptera, by Rev. C. J. S. Bethune, M. A. - Observations upon some American Pierinae, by Tryon Reakirt. Description of a new species of Citheronia, and Remarks on Ani- sota rubicunda, by Aug. R. Grote and Coleman T. Robinson. Description of some new genera and species of North American Limnobina, by Baron R. Osten Sacken. - Catalogue of Hymenoptera in the Collection of the Entomolo- gical Society of Philadelphia, from Colorado Territory, by E. T. Cresson. Description of a new species of Cuban Lepidoptera, by Charles A. Blake. ----.-.._ Descriptions of North American Lepidoptera, No. 6, by Aug. R. Grote. Page 213 216 222 224 242 313 315 Vol. 4, No. 3. L: PROCEEDINGS OK THE Entomological Society OF ff PHILADELPHIA. MAY AND JUNE, 1865. PHILADELPHIA: PRINTED BY THE SOCIETY At the Hall, No. 518 South I3f* £bwf. n/*^s (M§^ - ^° ^o ^ gQ^gXH?^® ^^ ^ s 1865.] 331 Contributions to the Natural History of the CYNIPIDiE of the United States and of their Galls. Article 4th. BY BARON R. OSTEN SAC KEN. I Communicated April 10, 1865.) The present paper brings but very few new facts before the entomo- logical reader. The intention which principally prompted me, in pre- paring it was, to give an account of the present state of the European literature on Gynlpldse, (exclusive of Ftgitidse), an account intended especially for the benefit of entomologists unfavorably situated with regard to access to scientific libraries and to whom this literature, scattered over many volumes of transactions of European learned socie- ties would otherwise have remained inaccessible. At the same time, I have taken advantage of this opportunity, in order to correct several errors of my former papers, to complete some descriptions of species and to introduce some remarks, synonymous and others, suggested by the comparison of the specimens of my collection which I owe to the liberality of MM. Walsh and Bassett. In this respect my paper will afford a kind of recapitulation of the N. A. Gyntpldee at present known. My correspondence with Dr. Reinhard and the exchange of speci- mens with him, have led me to a somewhat better insight into Har- tig's system of Gynipidse, than T possessed before, but have convinced me at the same time, 1st, that although most of his genera may be easily recognizable to European entomologists, they have never been scientifically defined ; 2nd, that Hartig's system will require a consid- erable development, in order to be applicable to the N. A. Gynipidse ; this development consisting principally in the adoption of several new genera peculiar to North America and coordinate to Hartig's genera Gynlps, Andricus, j\ T euroterus, Spathegaster and Trigonaspis. How- ever, to establish new genera, without strictly defining the already existing ones, would merely increase the confusion. A simultaneous reform of the whole system will therefore be the only warrantable course to pursue. About one hundred European gall-producing (psenidous) Gynlpldse are at present known. The number of American species has not quite reached fifty, and yet, considering the great prevalence of oaks in this country, much more abundant in species of this tree than Europe, we may expect that the number of N. A. Gynipidse will far exceed the 332 [May number of European insects of this family. In view of the compara- tively small number of known N. A. species and of the large additions which we can reasonably expect very soon, it would be premature to attempt now the reform above alluded to. This conclusion is still more justified by the consideration that we may likewise hope within a short time, to see new light thrown upon the still mysterious sexual ques- tion of this family, a discovery wbich will naturally affect its systema- tic distribution. In agreement with these motives, I have adopted in this paper only three pxenidous genera, easily recognizable by their general appearance, even in the absence of a definition, the more so, as each of them is con- fined to a different genus of plants. These genera are : Gynipa (in the wider sense, in contradistinction of the genus Cynips Hartig, in the narrower sense, reputed agamous), which is confined to the oak ; Rho- dites, all the known species of which live on the rose, and Diastrophus, hitherto obtained from galls on Rubus and the allied Potentilla. As to the subdivision of the first and largest of these genera, I have con- fined myself to a few hints, leaving it to the future student either to follow them out or to controvert them. The same views about the unseasonableness of a reform of the sys- tem of Oynipidx have induced me to retain the primary subdivision of the family, adopted by Hartig and based upon the shape of the radial cell and the position of the areolet This subdivision, insufficient as it is. affords the advantage of being almost coincident with the subdivi- sion into Psenidve and Inquilinse, based upon the habits of the insects. Hartig divides the gall-inhabiting Cynipidx into two sections: I. With a narrow radial area, the areolet being opposite its basis. II. With a broad and stout radial area, the areolet being beyond its basis. The former are generally Psenidse ; the latter Inquilinse; the excep- tions, mentioned by Hartig or observed by others, will be noticed at the proper places in the sequel. Besides, most of the former (with the exception of Rhoditcs), have an open radial area ; most of the latter (with the exception of several Aulax), have it closed. All these dis- tinctive characters may be useful, as long as taken in connection ; but how vague Hartig's definition of the two sections is, becomes very striking, if the radial area of Rhodites is compared with that of any spe- cies of the other section ; of the two, it is certainly the former which deserves to be called broad and short; moreover, it is closed, whereas the area of Aulax sylvcxtris is open. 1865.] 333 [ will close this introductory paragraph by briefly stating the points which deserve an early investigation from those who are so situated as to be able to devote themselves to it. 1. The species Cynips pezomachoides, forticomis and Mrta, known in their wingless form only, have been referred by me to Teras Hartig, because they do not possess the principal character ascribed by this author to Biorhiza, an almost obsolete scutellum (" scutellum subnul- lum" Hartig). Their scutellum is as large, and even larger, than that of the wingless specimens of the European Andrlcus (Teras) terminal-is which I have received from Dr. Reiuhard. It is singular enough, however, that the winged form of these species has not been discovered yet, and it would be worth while to breed the galls in larger numbers in order to obtain this winged form, if it exists. 2. The dimorphism of certain female Cynipidse being accepted as an apparently well established fact, it remains now to be investigated how far this mode of reproduction is general in this family. The only dimorphous female as yet discovered belongs to a particular group of Cynipidse, occurring on the black and red oaks only, and having certain characters in common, which probably will cause this group to be sepa- rated as a distinct genus. (The details of these characters will be given at the proper place below.) This group, as far as I can understand. is foreign to Europe. The following questions arise at once: — 1st. Is this character of dimorphism common to the whole group above alluded to ? This can be easily ascertained, I think, by subjecting galls of C. singula- ris, for instance, or any other common species of the group, to the same process of observation as Mr Walsh applied to the galls of C. spongijica. 2d. Are the other species of the black, red and wil- low-oak group, species known as yet in the female sex only, dimor- phous forms of some as yet unknown bisexual species ? This applies especially to G. punctata (podagrse) of which more than one hundred females have been reared without any male, and to C formosa, which shows rather striking structural affinities to the agamous female of ('. spongijica {(J. acindata olim.) 3d. Are the 39 European species be- longing to the agamous genus ([//nips Hartig, the four or five North American species belonging to the same genus, and the European aga- mous species of Neuroterus, all dimorphous females of some known or unknown bisexual species? This is the most important question of all. and the most difficult to solve by means of an a priori reasoning. If. on one side, we cannot but concur in the views expressed by Mr. Walsh 3?>4 [May (Proc. etc. IT, p. 448) on the improbability of an entirely agamous mode of reproduction, on the other side, it seems still more difficult to suppose that the dimorphism of the females, if it really exists in the genus Cy- nips in Hartig's sense, should have remained undiscovered for more than a quarter of a century, during which the question of the appa- rent parthenogenesis of this genus has attracted the liveliest interest in Europe. I read in the last number of the Berliner Entomologische Zeitschrift for 1864, (page 405). that at the last annual meeting of the German Naturalists at Griessen. Professor Hartig lectured upon the partheno- genesis of Cynips. He said that the experiments of breeding these insects from galls made during the last twenty -five years, produced only females of the genera Cynips and Neuroterus. The females of the agamous species oviposit immediately after the completion of their development ; those of the bisexual species only after copulation. He described the receptaculum seminis of the bisexual species; it contained spermatozoa after the copula (in Spathegaster.) The agamous species possess a receptaculum,, but it contained no spermatozoa. It must be observed that there is nothing in these statements to subvert Mr. Walsh's hypothesis, and. as improbabilities are not impossibilities, it may turn out yet that some important fact, solving the vexed question, has been overlooked by European observers. Hartig reared Neuroterus parasi- ticus from the gall of a true Cynips. Neuroterus belongs to the first section of Oynipidse and all its other species are psenidous. But Har- tig suggests himself that N. parasiticus, together with several other species, (which were all caught but not bred), may be considered as a distinct genus, on account of the perfectly smooth mesonotum. which has no parapsidal grooves. The rather common gall of Cynips globulus Fitch, a true agamous Cynips in the sense of Hartig. can be recommended as a suitable object of observation towards the solution of the mystery. And it would be very gratifying if this solution, so happily begun by Mr. Walsh, was also completed on this side of the ocean. New York, April 3. 1865. Section I. ( •• Area radialis angusta ; areolea basalis." Hartig, Germ. Zeitschr. II. p. 185.) Hartig's arrangement of the genera belonging to this section is as follows 1865.] 385 A. Antennae articulis incequalibus, ultimis 7-8 brevioribus, cla- vam elongatam constituentibus. a. Scutellum hsemisphericum. 1. Thoracis dorso villoso. Palpi max. 5 artic: palpi labiates 3 art Cynips. 2. Thoracis dorso nudo, plerisque coriaceo. Palpi max. 5 art. : lab. 2 artic Andricus. 3. Thoracis dorso nudo, plerisque lsevigato. Palpi max. 4 art., lab. 2 art Neuroterus. b. Scutellum depressum, planum. 4. Palpi max. 4 artic, lab. 2 artic Teras. c. Scutellum subnullum (apterus). 5. Palpi max. 5 art., lab. 3 artic. ultimis appendiculis conicis coronatis Apophyllus. (—Biorhiza Westw.) B. Antennae setaceae, 15 — 16 articulate. 6. Palpi max. 4 art, lab. 2 art Rhodites. 7. Palpi max. 5 art., iab. 3 art., articulis ultimis appen- diculis parvis lateralibus Diastrophus. C. Antennae fili formes, 15 — 16 articulatae. 8. Thoracis dorso coriaceo. Palpi max. 5 art., lab. 3 art Spathegaster. 9. Thoracis dorso laevissimo. Palpi max. 5 art., lab. 2 art. articulis ultimis ap- pendiculis coronatis Trigonaspis. This is all that Hartig's first article on Cijnipidse (Germ. Zeitschr. II, p. 176) affords towards a definition of the genera. His second article (1. c. Vol. Ill, p 322) contains on pages 330 and 331 some few additional remarks, among which the only important one, is the following : — " The phrase in the tabular arrangement of the genera ' A. Antennae articulis insequalibus, ultimis 7 — 8,' etc , refers only to the female sex, as the males of the bisexual genera Andricus and Teras have filiform antennae with more or less coarctate, sometimes even (A. moniliatus) rounded joints. These males might therefore be confounded with those of the genera Spathegaster, Rhodites, Trigo- naspis and Diastrophus, if the £ of Spathegaster were not distinguish- able by the abdomen, which is attached to a long peduncle, the % of Rhodites by the closed radial area. At the same time, there exists the most remarkable resemblance between the males of Andricus and Tri- gonaspis, two genera which are so easily distinguished in the female sex by the structure of the antennae. The only easily noticeable differ- ences are that Trigonaspis has the single antennal joints cylindrical, Andricus more or less truncate-ovate; that the scutellum of Trigonas- pis is larger, narrower, ending in a sharper point, and especially that it is more deeply excavated and more porrected over the abdomen, than in Andricus. The lateral tubercles of the scutellum of Trigonaspi* 336 [May are .sharper and more protruding, which gives the scutellum a more triangular shape." About Neuroterus Hartig says (1. c. TIT. p. 338), that it can be divided into two groups, based on the presence or the absence of parapsi- dal grooves; in the group without them, the mesonotum is an uninter- rupted, smooth, very shining convex surface; as a general rule, the mesonotum of this genus is more smooth and shining than in most spe- cies of Andricus. It is remarkable, adds Hartig, that two so closely allied genera as Andricus and .V' uroterus should be so different with regard to their mode of reproduction. Neuroterus certainly belongs to the agamous genera; in Andricus the males are as common as the females. Other remarks of Hartig, bearing on the subject of classification, are the following : 1. (1. c. Ill, p. 323). All the genera, named on the analytical table (page 5), are gall-producers (Psenidae) ; Neuroterus alone may some- times be inquilinous; Aulax, which belongs to the following section, he also refers in part to t. e Psenides. (I will discuss this question in the introductory remarks to the second section.) 2. {ibid.) All the above named genei'a are bisexual; with the ex- ception of the following, which are agamous: Cynips, Apophyllus and those species of Neuroterus. which an gall-producers; (the latter circumstance is rather remarkable and perhaps suggestive ! Compare above, page 334.) 3. (1. c. IV. p. 408). Wingless females of Teras are often bred from galls, together with winged specimens of both sexes ; such specimens show a less developed thorax, but are however distinguished from Bior- hiza Westw. {Apophyllus Hartig) by a larger scutellum. 4. (1. c. IV, p. 411). Hartig introduces the new genus Synophrus, which was not included in the tabular arrangement given above. It is characterized as follows: " Segmentum abdominis secundum* reli- quia longius, area radialis augusta, areola basalis, anteuna? filiformes. 14 ( — 15 ? ) articulatje; palpi maxill. 5 articulati ; palpi lab. triarticulati. articulis ultimis appendiculis parvis apiealibus; facies thoraciscjue latera aciculata ; abdominis segmentum secundum * reliquis prominens." This insect was obtained from a gall on Quercus cerris ; its second abdomi- nal segment seems to have nearly the same structure as that of Synergus. The extracts which I have just given, contain nearly all the infor- * Hartig has jmmum in both cases, but in accordance with the terminology adopted by us, I change it to secunduvi. 1865.] 337 illation which Hartig has communicated to his readers about the new genera introduced by him. He says that the great number of new species, obtained by him after the publication of these genera, were all very easily located in them. Tn his last paper (1. c. Vol. IV), the num- ber of species in the different genera reaches the following figures : Oynips 28, Andricus 12, Neuroterus 11, Teras 2, Biorhiza Westw. 2, Rhodites 3, Diastrophus 1, Synophrus 1, Spathegaster 3, Trigo- jtaspis 2. Since Hartig, Griraud has published numerous new species of Euro- pean Ct/nipulse (Verh. Zool. Botan. Gesellsch. Wien, 1859, p. 353). He did not introduce any changes nor improvements in the system, except that he united the genus Teras to Andricus, the characters dis. tiiiii'uishinir them being insufficient, and that he established a new genus Dryocosmus. I will translate here the character of the genus and give a short extract on the gall-fly. which belongs to it, as well as on its gall. Dryocosmus, Giraud. — "Maxillary palpi 5-jointed; labial palpi 3-jointed; mandibles bidentate : antennae slightly incrassated towards the tip, 15-jointed; the basal joints of the flagellum gradually decrease in length, the sixth is at least twice as long as it is broad, the following joints are shorter, hardly longer than broad." " Mesothorax convex, with deep parapsidal grooves, limited posteriorly by an elevated transverse ridge; scutellum hemispherical, projecting, transversely depressed at the basis and bordered on the sides by a slightly elevated ridge, which becomes weaker and almost obsolete posteriorly." " Wings and abdomen as in the genus Cynips ; the first (what we call now 'second') segment occupies about half of the whole length of the abdomen." '•This genus is principally distinguished from Neuroterus by the structure of the scutellum." The only species, D cerriphilus 9 ■ was obtained by Griraud from a gall on Q. cerris, which, judging from his description, must be some- what like the gall of 0. cornigera 0. S., only the conical points, pro- jecting through the woody swelling of the limb in the latter gall, are replaced here by numerous rounded, oboval or fusiform bodies, which in June pierce the outer skin of the swelling. These bodies, when fresh, are pale green, tinged with rosy and reddish and exude a sap of which the ants are very fond. The gall-fly has a smooth shining meso- notum and pleurae, a long, narrow radial cell and a distinct areolet. The 3tily mention 1 have to make yet, in order to complete the lite- erature of this section of Cynipidse, is the genus Pediaspis Tischbein (Stett. Entoui. Zeit. 1852, p. 141). The author obtained forty-two female specimens, in winter, from the galls on the roots of Sorbus au- cupafia. I abstain from translating the description, as it is published in an easily accessible entomological review, the more so, as the charac- 338 LMay ter of the genus is not very clearly stated. Pediaspis has, like Cynips Hartig, (in the restricted sense.) a pubescent thorax and seems in general rather closely allied to it. In my former publications on Cynipidse, 1 have more than once com- plained of the incompleteness of Hartig's definitions of the genera in- troduced by him. The reader may judge now for himself. For my own part, even with the aid of typical specimens, which I owe to the kindness of l>r. Reinhard, I am still unable to recognize the genera Andricus, X> urotents, Spathegaster and Triognaspis with any degree of scientific accuracy. Without speaking of the difficulty of counting the joints of the palpi, it is contrary to all analogy, that their number should be so variable in closely allied genera. And that the European entomologists them- selves do not value this character very highly is proved by the fact that Giraud united Teras and Andricus into one genus, from want of sufficient characters to distinguish them, although Teras, according to Hartig. has 4-jointed, Andricus 5-jointed maxillary palpi. The palpi beina left out. what is the difference between Andricus and Neurote- run f Hartig's phrase : " thorax bare, usually coriaceous" for the former, and -'thorax bare, usually smooth." is the only, but not a sufficient, defi- nition. In the above quoted passage, Haiti" informs us that Spathe- aaster has the % abdomen pedunculated ; but the same is the case with Trigonaspis ! (A specimen of this genus was sent to me by Dr. Rein- hard.) In what. then, does the difference between these genera con- sist? As if to increase the difficulty, Mr. Hartig tells us (compare above) that there is tht must remarkable resemblance between the males of Andricus ami Trigonaspis, and. in the enumeration of the differences which follow, he makes no mention of the pedunculated £ abdomen. Have we to conclude from this statement that the % abdomen of An- dricus is also sometimes pedunculated? It is the place here to bring to notice, that Hartig generally counted one antenna! joint more than necessary, as he evidently considered as the first joint, the socket of the antenna, which is often visible below the first joint. Noticing the frequent disagreement between Hartig's state- ments in this respect and my own observations. I always suspected that such was the case, until recently my suspicions were confirmed, when I happened to notice Hartig's remark about Trigonaspis (1. c. II. p. 195): " articulus 4 antennarum £ curvatus," which evidently refers to the third joint. The difficulty experienced by me in arranging the North American 1865.] 339 Gynipidse according to Ilartig's system, is apparently due, besides the imperfection of the system itself, to the peculiarity of the American fauna, which may require the establishment of several new genera. The great prevalence of oaks in this country and the great number of their species, would justify o priori the inference that Gynipidse are very abundant. That they are not only abundant, but also very different from the European representatives of this family, may be inferred from the following facts: — 1st. The group consisting of the species G. spon- gifica, ilicifolise, coelebs, singularis, etc.. quite numerously represented in North America, does not exist in Europe. 2d. The agamous genus Cynips, in the restricted sense of Hartig, is much more numerous in Europe than in America, as among 08 species of true gall-flies ( Psen ides). described by Hartig, and in the last publication of Giraud, 39 belong- to that genus; whereas among nearly 50 North American Psemdes at present known, only /our, perhaps Jive, as we shall see hereafter, belong- to Cynips Hartig. In the introductory remarks to this paper, I have already expressed the conviction that before the North American fauna of Gynipidse is better known, but especially before tin mystery of tin reproduction of Cynipidx is solved, it would be premature to attempt a final distribution of the family in genera. Indeed, if we were not acquainted with the fact that C. aciculata is nothing but a dimorphous of C. spongifica, we would probably have located it in a different genus, on account of the peculiar structure of its abdomen, the number of joints of its an- tennae, etc. Admitting, therefore, as announced in the introduction, only three genera of psenidous Gynipidse, Cynips, Rhodites and Diastrophus, all that I can offer at present, as to the subdivision of Cynips, is confined to a few hints, as follows : — 1. G. strobilana 0. S., C. tubicola 0. S., C. globulus Fitch, and C. centricola 0. S., are the only American species at present known which Hartig would have located in his agamous genus Cynips. (The two former species I have communicated to Dr. Reinhard; of the two latter. I judge by analogy.) Although C. clavula Bassett has a pubescent thorax, a character peculiar to Cynips Hartig, I am not sure whether it can be considered as belonging to this genus. All these species occur within the group of the white and chestnut oaks (Q. alba, prinus, obtusiloba, etc.) 2. G. seminator Harris, which I have communicated to Dr. Reinhard, is an Andricus ; judging by some structural analogies, C. petiolicola Bassett and C. fusiformis 0. S., perhaps also Cfutiilis (C. papillata), 340 [Mat very probably belong to tbe same genus. These species all occur in the group of the white and chestnut oaks. 3. C. pezomachoides 0. S., G. forticornis Walsh and G. hirta Bassett are apparently wingless females of Teras Hartig (a genus now united with Andricus) ; if such is the case, we may expect the discovery of winged individuals of these species. As these wingless specimens, in- variably females, have always been reared in winter, may they not be dimorphous females of the winged individuals, for which we would have to look out, in such a case, in the early part of summer? Biorhiza Westw. (= Apophyllus Hartig) is distinguished from Teras by an almost obsolete scutellum. The three species named above belong to the group of the white and chestnut oaks. 4. G. irregularis 0. S., G. majalis Bassett and 0. batatus Fitch are distinguished by the S abdomen being fastened to a rather long, linear peduncle, by the great development of the third antennal joint, which is long, stout and curved; by the smooth mesonotum, with- out any traces of parapsidal grooves ; by the elevated hind margin of the mesonotum ; by the absence of pits at the basis of the scutellum which are replaced by a transverse impression, etc. These species are evidently allied to Spathegaster /rim/or Hartig, of which I possess spe- cimens, the latter having an abdomen of the same structure, no pits at the base of the scutel, the same large wings, with a rather distinct cu- bital vein. etc. But the third antennal joint of S. tricolor, is linear and slender, and not much longer than the fourth; the mesonotum is very finely coriaceous and shows faint impressions, foreshadowing the parapsidal grooves. Trigonaspis Hartig has the third antennal joint elongated and curved, but its abdomen, although pedunculated, has a different structure and the parapsidal grooves are distinctly marked. I conclude, hence, that the three above named N". A. species form a dis- tinct group, allied to Spathegaster. G. verrucarum 0. S., known in the female sex only, shows many points of analogy with these three species, and I should not wonder if the male proved to have a pedun- eled abdomen. 5. G. spongifica i inanis. coccineae ). coslebs, ilici/olise, singularis, Osten Sae/cenn, and probably the gall-fly of Q. falcata, the gall of which was described by me, Proc. etc. I, p. 69, No. 20, form a distinct group, foreign to Europe, and which will probably have to be separated as a distinct genus. It is worthy of remark, 1st, that the galls of all these species occur exclusively on the group of the black and rea oaks ; 2d, that all these galls are built on the same plan; they are monothala- mous, and consist of a globular or fusiform, comparatively thin and 1865.] Ml brittle shell, containing a proportionally small central nucleus, kept in position either by a spongy matter, filling up the space between it and the shell, or by filaments, radiating from it. It is in this group that the dimorphism of a female (that of C. spongifica ) was first discovered by Mr. Walsh, and it would be an interesting and comparatively easy subject for observers to investigate, whether the other species of the group likewise have dimorphous females? It would be sufficient, I think, to use for this purpose the same process which Mr. Walsh has used for the discovery of the dimorphism of (J. spongifica, that is, to collect a large number of galls at the proper time in the spring or in early summer, and thus to obtain the two successive broods, the bisexual one in summer and the dimorphous female brood in winter or early next spring. I should not wonder at all if, in some cases, the galls producing the dimorphous females were somewhat, or perhaps even altogether, different from those producing the bisexual brood. Is not C. formosa Bassett, known in the female sex only and bred in winter, a dimorphous female of some other species? It is distinguished from the sexual females of the genus by precisely the same characters which distinguish O. aciculata (the agamous female of C. spongifica^) ; its abdomen has the same shape as C. aciculata, and is different in shape from the abdomen of the sexual females; its sculpture, like that of C aciculata, is less coarse than that of the sexual females, and also distin- guished by five aciculate striae ; its antennas have more joints than those of the sexual females. 6. C. modesta 0. S., 0. quercus nigrse 0. S. and C. tumifica O. S. form again a distinct natural group, remarkable for the absence of the areolet, the peculiar, microscopic sculpture of the thorax, rendering it opaque, and the great difference in size and color between the two sexes. Their galls are polythalamous swellings of the leaf-ribs, contain- ing many small, seed-like bodies. They occur on Q. rubra, tinctoria and nigra. 7. 0. operator 0. S. with 12-jointed 9 antennas and some other pe- culiarities, will probably form a new genus. It occurs on Q. nigra, and the same species or a similar one on Q. palustris and ilicifolia. A pe- culiarity in the neuration constitutes a point of relationship between this species and G q. phellos and C. similis, which, however, are dis- tinguished by the sheath of the ovipositor being much less protruded. 8. 0. punctata Bassett (podagrae Walsh) is apparently agamous ; more than 120 £ specimens were reared by MM. Walsh and Bassett, without a single male. If such is the case, we have before us an aga- mous species, the thorax of which is not pubescent, as the thorax of the 342 [Mat agaiuous Gynips Hartig invariably is. The presumption is. therefore, that it belongs to a different genus, and this is supported, by the other characters, as the sculpture, the shape of the abdomen, etc. Now G scitula Bassett. known in both sexes, resembles G. punctata very much, except that it is much smaller ; it occurs, like G. podagrse on Q. tinc- toria, and produces a gall which, judging by the description, is not unlike that of the latter species. These facts irresistibly suggest the impression that G. podagrse, its larger size notwithstanding, is but an a famous female of G. scitula. Again a fact for observers to investigate. The above remarks may be summed up as follows: — 1. The species of Gynips producing galls on trees of the white and chestnut oakgroup ( tj. obtusiloba macrocarpa, (dim. prinu*, prinoides, castanea, forming Mr. Gray's first division, fruit ripening the first year ; compare dray's Manual of Botany,) seem to be. as a general rule, geue- rically distinct from the species, producing galls on the trees of the black, red and willow oak group ( ( t >. rubra . coccinea, tinctoria, falcata, ilicifolia, palustris, phellos, imbricaria, nigra; dray's second division. fruit not maturing until tin second year). Thus the genera Gynips (in llartig's sense), Andricus, Spathegaster, Teras, as far as they are recognized among the X. A. species, all occur on the white oak group, whereas most of the species belonging to the other group will probably require the establishment of new genera. Ilenee, the relationship with the European fauna is especially to be found in the first group, the second principally containing forms peculiar to America. 2. If any species of Cynips produces galls on more than one kind of oak it will always confine itself to oaks of the same botanical group. I am not aware of a single exception to this rule.* Genus CYNIPS. (Galls on trees of the genus Quercus.) The number of species of Gynips in its present acceptation being now more than forty, and a number of galls having been described be- sides, the gall-flies of which are as yet unknown, it became very desira- ble to have a general synopsis of the knowledge thus accumulated, the more so as the data respecting this knowledge are scattered in several volumes. To this end. the following two tables have been prepared : 1st. an analytical table of the known species of X. A. Gynips ; 2d. a synoptical table of the known X. A. oak-galls produced or supposed to ■ This was already written when I received Mr. Walsh's paper " On the in- sects etc. inhabiting the galls of certain willows," (Proc. Ent. Soc. Vol. Ill, p. 543) and found, that by a remarkable coincidence, this author has made precisely the same observation (1. c. p. 639). 1865.] 343 be produced by Cynip*. At the end of these tables have been added od. Remarks, containing all the necessary references to the previous publications bearing on the subject, and some new tacts, suggested by the comparison of original specimens, additional descriptions, etc. 1. The construction of the first of these tables is necessarily imper- fect, owing to the difficulty of finding discriminating characters of easy and general application. Another still more evident cause of imper- fection is, that of many species, only one sex is known. It will be highly desirable to have a new. corrected table published as soon as the accumulation of new facts will require it. Such a table affords the ad- vantage of being the only means for identifying, if not with certainty, at least with some degree of approximation, the species of Cynips taken at large and not bred from galls. A very useful, if not indispensable addition to the table, would have been a full and comparative descrip- tion of all the known species, instead of the existing descriptions differ- ing in the degree of their completeness, often in their nomenclature and seattered in many volumes. I regret that I have not had time to prepare such descriptions. The frequent occurrence of phytophagic varieties within the present group has induced me always to add the name of the tree to the name of the species bred from it. The name of the tree and the description of the gall being added to the description of the insect, it will be pos- sible, in most cases, to attain comparative certainty as to the specific identity of the insect, even if its description should only be of average completeness. On the contrary, the insect alone or even the gall and the insect beinir described, without the name of the tree, the identifica- tion may often seem doubtful. Tf a species has been first found on one kind of oak and subsequently on others. I have added the name of the first kiud of oak only, thus showing that the insect bred from that oak represents the type of the species. Tf. for instance, it is once proved that constant differences occur betweeu ('. a, palustris bred from Q. palustris and C. q. palustris bred from Q, tinctoria, the first should be considered as typical. Kntouiologists should be especially cautioned against rashly concluding as to the specific identify of insects bred from two galls, showing a superficial resemblance, but found on different trees. In the analytical table No. I, those species which are nearly identi- cal, but occur on different trees, and may thus be considered as phyto- phagic varieties, or incipient new species, are united by brackets. I have also introduced a slight change in the nomenclature, which I have to account for. Tn my previous papers, following the example of 344 [May former writers, [ have always placed the letter q (guercus) between the generic and the specific names of the Cynipidse of the oak. But as this addition seems to me perfectly useless, I have omitted it now. ex- cept in cases when the name of the species is derived from the name of the oak, (as, for instance, C. que.rcus nigrse ( ). S.) 1. fn preparing the Synopsis of the galls (Table No. ID, I have mostly retained the subdivisions adopted in my first paper (Proc. etc. [, p. 53). Although these subdivisions are merely empirical, the table will considerably facilitate the task of determining whether a given gall has been described or not, and, in the first case, where the descrip- tion is to be looked for. A scientific subdivision of the eralls has to be based on physiological characters, which are not sufficiently investigated at present. As galls are apt to undergo several modifications of their appearance during the different stages of their growth, the description of a gall should represent it in the state of maturity, which is reached when the gall-fly is ready to escape. This rule should be invariably understood, unless the description is rendered still more complete by representing the successive stages of growth. I. Analytical Table of the known species >>/ j\ r . A. Cynips. Observation. — The numbers on the left-hand side of the specific names refer to the Remarks, etc. on page 350 and the following. 1. No distinct pa rapsidal grooves ; mesonotum quite smooth and bare, scutellum likewise 2 Parapsidal grooves distinctly marked (unless indistinct in consequence of a very rough sculpture of the mesonotum) 4 2. Third antennal joint equal in length to three f 18 - C. irregularis 0. S. J,. c r. ., /. ,, . ■ , i ,, (Q. obtusiloba.) or four of the following joints taken together ; -j 1Q p . .. _ ' , * -11 i ^' niaj ^lis i>assett % thorax of the % with yellowisb pleura. p. to, alba.) Third antennal joint equal to two of the following joints taken toge- ther, or less 3 f 20. C. batatus Fitch % 9. 3. 0.10— 0.12 long j (Q, alba.) 0.05 long 1 21. C. verrucarum O.S. 9- [ (Q. obtusiloba.) 4. Wings with a conspicuous dark brown cloud at the basis of the ra- dial area, on the second cross-vein .5 Wings without such a cloud, or, at the utmost, with a narrow, in- conspicuous brown margin on the second cross-vein 7 5. Feet black, except the two anterior pairs of tibiae 1 26. C. q. ilicifoliae Bassett and tarsi, which are brownish-yellow. J S 9- (Q- ilicifolia.) Feet reddish or yellowish ft f 22. C. spongifLca S. £, 9- (Q. tinctoria.) a . , t j- ,- i *■ n ic i o,,o, 2.3. C. q. coccineae O. S. 9 • 6. Areoletd.st.net; % 0.1b long; 9 0.23... \ (Q coccinea.) 24. C. inanis O. S. % 9 . (Q. rubra.) 1865.] 345 Areolet very indistinct ; % 0.14 long 25. C. coelebs O. S. %. (Q. rubra?) 7. Areolet present (the veins, bounding it on the inside may often be nearly obsolete, still the areolet, in a certain light, is visible.) S No areolet 25 ■S. Mesonotum and scutellura clothed with a rather dense, apjjressed pubescence ;i Mesonotum altogether glabrous or seldom with a few short, scat- tered, microscojdc hairs* 13 9. Body reddish, small (0.10—0.12 long) ( 4 C. tubicola S. 9. J { (Q. obtusiloba.) Body black or brown ]<\ 10. Posterior half of the abdomen pubescent I l " Ct strobilana O. S. 9 . r { (Q. bicolor ?) Posterior half of the abdomen not pubescent 11 , , n j ,1 A no 1 f 5. C. clavula Bassett in 11. Body not more than 0.12 long j lltt . ? . (Q alba-) Body more than 0.15 long 12 12. A brown cloud in the anarle between the radial ") „ _ . . , » ,. _ j 1 -i 1 j if 11 ' ... C. centricola U.S. 9 . and cubital veins and a couple of irregular brown :■ ,zr -r* ., , ' * mark, towards the apex of the wing. j ^- obtusiloba.) No clouds or marks in the space between the ra- ( 2. C. globulus Fitch 9 ■ dial and cubital veins J (Q. alba.) 13. Mesonotum more or less distinctly, (although sometimes microsco- pically) sculptured 14 Mesonotum smooth, shining, without any apparent sculpture (ex- cept the usual longitudinal furrows) 23 14. Sculpture of the mesonotum very coarse and rough 15 Sculpture of the mesonotum delicate 10 15. % Antenna? distinctly 16-jointed : 9 hind feet") 27. C. singularis Bas- concolorous with the other feel, reddish; 9 a °- \ sett % 9- domen red or reddish-brown J (Q. rubra.) .. . , , . . • , , , . , e i 1 1 iu ( 28. C. Osten-Sackenii % Antennre 15-jomtea; 9 hind teet darker than ] Raq<= P tt t O the two other pairs, brown; 9 abdomen black.! ,q j 1 ; 7. ; ^-, 1 ; ^ 1 16. The whole pleurae are rugose, opaque 17 A considerable portion of the upper part of the pleurae is smooth and shining 21 17. 9 Antennce distinctly 15-jointed ; whole body ( 9 ) n °t black nor dark brown IS 9 Antennae 13 or 14-jointed ; body (except antennas or feet) black or dark brown 19 IS. 9 head and thorax brownish-yellow, abdomen I 37. C. ventricosa Bas- brownish | sett 9- (Q. ilicifolia.) 9 bead and thorax deep-black, abdomen bright [ 29. C. formosa Bassett red J 9 . (Q. rubra.) 19. Mesonotum with a dense, even sculpture, giving it a handsome, semiopaque appearance 20 Mesonotum rather shining, its sculpture percep- ) 38. C. cornigera O. S. 9 • ceptible under a very strong lens only J (Q. palustris.) * The only possible error here is with C. jictiolicola, which may be referred to the preceding diagnostic phrase, as its thorax has a sparse, but rather distinct pubescence. 346 TMay 20. 21. f 39. C. punctata Basset! T „ rt1<) ■ 9- (Q. rubra.) Length 0.12 , 40 c po dagrae Walsh [ ?. (Q. tinctoria.) Leneth 0.07— 0.09 ' ll - C. scitula Bassett $ ° 1 J. (Q. tinctoria.) The rough sculpture of the humeral parts of the collare is in dis- tinct contrast with the comparatively smooth and finely sculp- tured surface of the mesonotum «19 There is no marked contrast between the sculpture of the humeral parts of the collare and the mesonotum 22 23. Scutellum finely rugose, opaque J "■ C. petiolicola Bassett 9 & J ' I %. (Q. montana.) Basal half of the scutellum rather smooth and I 8. C. fusiformis O. 8. 9- somewhat shining I (Q. alba.) Scutellum deeply rugose, and therefore opaque ; 1 fl „ . tr . ~ male abdomen nol pedunculated; bead of , °- C.seminator Harris 9 24. the female reddish J £• (Q* alba -) Scutellum moderately rugose, and therefore more or less shining; head of the female black (except the face, which in C. q. palustris is reddish) 2 1 I 0.09, 9 0.10 long i 42 - C.q. palustris O.S.fc * 1 9- (Q. palustris.) f 9. C. futilis 0. S. % . (Q. alba.) 10. C. papillata O. S. & . (Q. prinus.) The branch of the subcostal vein, running towards the anterior margin, is obsolete; the radial area is therefore open on the inner side 26 The branch of the subcostal vein running towards the anterior mar- gin is distinctly marked, although sometimes abbreviated 27 ■£, only 0.05 long. 26. 36. C. operator O. S. £ 9- (Q. nigra.) 32. C.similis Bassett £ 9 (Q ilicifolia.) 31. C. q. phello3 O. S. 9. (Q. phellos.) 28. The sheaths of the 9 ovipositor project consi- derably above the dorsal line of the abdomen ; % of the same coloring with the 9- both be- ing brownish-red The sheaths of the 9 ovipositor do not projeel above the dorsal line of the abdomen: the 9 is brownish-red or reddish-brown; the % of C. gimilis is black ; the % of C. q. phellos is as yet unknown Stout veins of the wings pale, colorless; bead and thorax ( 9 ) reddish, abdomen dark brown: % small in size, black Stout veins of the wings colored with brown, head and thorax 1 9 brown Antenna; uniformly brownish-yellow; length ) of 9 0.06—0.07 (male unknown) j Antennse darker towards the tip; length of the 9 0.0a— 0.10 33. C. q. nigrae 0. S (Q. nigra.) %9- !5. C. modesta 0. S. 9 . (Q. rubra?) U. C. tumifica O.S. % 9. (Q. tinctoria. ) *This brings back to C. cornigera O. S. This species has a small smooth space on the upper part of the pleura;, which might mislead those who perceive it. Care has been therefore taken to arrange the table in such a manner that whicheverof the two phrases under No. 16 is chosen, C. cornigera may be reached. 1865.] 347 N. B. — Are not mentioned in this table the species known in their wingless form only (12. C. pezomachoides 0. S., 13. C. forticornis Walsh ami 14. C. hirta Bassett) and the species which I havenotseen (II. C. flocci Walsh. :;o. C. sculpta Bassett, 15. Philonix fulvicollis Fitch, 16. Ph. nigricollis Fitch. 17. Biorhiza nigra Fitch). II. Synopsis of the described Galls of N. A. Cynips. Observation. — The numbers on the left hand of the names refer to the Remarks on page 350 and the following. An asterisk near this number means that I have not seen the gall, ami therefore cannot judge with certainty about its location. As some galls have been de- scribed (especially by Dr. Fitch) under the name of their guest-flies, and had to change their name since the discovery of the true gall-flies. I have mentioned their former name as synonym of the gall, which of course does not imply the synonymy of the insects. All the galls of the left-hand column are found on the group of the white and chestnut oaks; all those of the right-hand column belong to the group of red, black and willow oaks. This subdivision will render it easier to find a gall in this synopsis, the more so as in no instance, as yet known, has the same species of gall-fly been discovered on two species of oaks be- longing to different groups. ( Compare above, page 842, No 2. ) Some of the galls, the gall-flies of which are not known, may prove not to be- long to the Cynijridse at all. Group of white and chestnut-oaks. | Group of red, hlack and willow-oaks. I. Galls on leaves. A. Galls not intimately connected with the substance of the leaf. generally fastened by a small portion of their surface, ami which can be removed without carrying a portion of the leaf with them, (project- ing from one side of the leaf, or from the margin.) 1. Globular galls, with a kernel in the centre, kept in position by a softer substance (dry spongy, fibrous, or succulent) or by filaments, radiating from it to the shell; all monothalamous. a. Kernel kept in position by a dry. spongy or fibrous substance. 43. Q. prinus: gall-fly unknown. 22. Q. tinctoria: C. spongifica O. S. Syn. of the gall : confluens Harris. *14. Q. montana; C. hirta Bassett. 23. Q. coccinea: C. q. coccineae 0. S. b. Kernel kept in position by delicate filaments. 3. Q. obtusiloba : C. centricola 0. S. 24. Q. rubra? C. inanis 0. S. Syn. of the gall: confluens Fitch, (non Harris. I c. Kernel kept in position by a juicy substance. *-30. Q. rubra i , ± ,, C. sculpta Bassett. *30. Q- tinctoria J r 2. Globular or irregularly rounded galls of a hard, woody sub- :us [May 25. Q. rubra ? C. ccelebs 0. S. 26. Q. ilicifolia: C. q. ilicifoliae Bassett. Group of white and chestnut-oaks. | Group of red, black and willow-oaks. stance, hollow inside, but without distinct kernel of a harder sub- stance ; the hollow space usually divided in two or more cells. 57. Q. alba; gall-fly unknown (the 44. Q. palustris; gall-fly unknown. same as the following ?) Syn. of the gall Q. pisum Fitch ? 12. Q. alba? C. pezomachoides 0. S. 58. Q. alba; gall-fly unknown; gall Q. erinacei Walsh. 3. Spindle-shaped galls. 8. Q. alba; C. fusiformis 0. S. 56. Q. prinoides: gall-fly doubtful. {Figites chinquapin Fitch.) 4. Woolly or hairy excrescences on leaves, wartlike or irregular. 11. Q. alba? C. flocci Walsh. 48. Q. palustris: gall-fly unknown. 45. Q. alba; gall-fly unknown; (C. flocci?) Synon.oi gall: Q. lance Fitch. 46. Q. obtusiloba: gall-fly unknown. 21. Q. obtusiloba; C. verrucarum <">. S. 47. C^. prinus ; gall-fly unknown. 47. Q. alba: gall-fly unknown. 5. Clusters of small galls growing on the underside of the leaves, or on the petiole. 49. Q. obtusiloba; gall-fly unknown. 51. Q. rubra: gall-fly unknown; gall Q. decidua Bassett. 50. Q. alba : gall-fly unknown. 6. Tubular galls with spines on the outside. 4. Q. obtusiloba; C. tubicola 0. S. AA. Galls intimately connected with the substance of the leaf, so that they cannot be taken off without carrying a portion of the leaf with them. 1. Globular , hollow, monothalamous galls. a. With a kernel in the centre, kejut in position by filaments, radiating from it to the shell (same type of structure as the galls of section A, 1, b.) 27. Q. rubra; C. singularis Bassett. Syn. of gall Q. nubilipenni.s Fitch (non Harris.) 28. Q. ilicifolia; C. Osten Sackenii Bas- sett. 28. Q. coceinea ; gall-fly unknown. b. With a white, cocoon-like body, roll- ing freely about in the cavity (on very young leaves and on buds, early in the spring). 1865.] 349 Group of white and chestnut-oaks. | Group of red, black and willow-oaks. 42. 1 C. q.palustris O.S. Q. palustris. Q. tinctoria. Q. falcata. Q. coccinea. Q. imbricaria. Q. ilicifolia. 2. Swellings or expansions of the leaf or of the leaf-ribs, mostly polythalamons, except No. 7, which seems to be monothalamous.* a. Juicy swellings of the blade of the d. Swellings of the leaf, usually leaf; of a cellular, pithy structure, along the ]:>rincipal ribs ; they contain when dry. numerous, seed-like kernels. 18. Q. obtusiloba: C. irregularis 0. S. 33. Q. nigra; C. q. nigrae 0. S. 34. Q. tinctoria; C. tumifica 0. S. 35. Q. rubra ; C. modesta 0. S. 19. Q. alba ; C. majalis Bassett. b. Expansion of the leaf, not juicy, with two or three seed-like kernels in the centre, kept in position by filaments. 9. Q. alba ; C. futilis 0. S. 10. Q. prinusj C. papiilata 0. 8. c. Hard, woody swellings of the leaf- stalk at the basis of the leaf, or of the principal leaf-rib. 7. Q. montana ; C.petiolicola Bassett. 7. O. prinoides I • . , ' ■ "* r I same insect? 7. Q. alba J 7. Q. prinus ; same gall? Insect un- known. II. GrALLS ON BRANCHES, TWIGS, ETC. .1. Galls of a different substance than the limb, and which can be taken off, without carrying a portion of the branch with them. 1. Monothalamous galls, mostly of a corky substance (except the gall No. 54, which is filled with a spongy substance.) a. Each gall wedge-shaped ; a num.- c. Large globular gall, growing from ber of them growing together, with the the side of the cuj) of the acorn. }>< lints of the wedges in the centre, form 53. Q. rubra ^ Gall-fly unknown; a body not unlike the cone of a pine. 1. Q. prinus (var. bicolor). C. strobi- lana 0. S. b. Galls globular, smooth, or with a nipple or point at the end. 52. Q. prinus (var. bicolor) ? Gall-fly unknown. 2. Q. alba Q. montana 2. Q. obtusiloba ~) Galls similar to > the preceding ; — 2. Q. macrocarpaj gallflynot reared. 53. Q. alba?? Gall-fly unknown : gall named Q. juglans 0. S. C. globulus Fitch. j- gall named Q. pru- Q. tinctoria J nus Walsh. d. Subcorneal galls, often in clusters. 37. Q. ilicifolia; C. ventricosa Bassett. e. Cluster of elongate-ovate galls. *29. Q. rubra: C. formosa Bassett. /. Monothalamous, oblong galls, filled with a spongy substance. 54. Q. falcata; gall-fly unknown. *The gall of C. petiolicola is certainly polythalamous.— H. F. Bassett. May 25th. 1865. 350 [Mat Group of white and chestnut-oaks. | Group of red. black and willow-oaks. 2. Woolly excrescences, with a great Dumber of seed-like kernels inside. 6. Q. alba : C. seminator Harris. 36. Q. nigra ) Q. ilicifolia :• C. operator 0. S. Q. palustris J 3. Bladder-like, thin-shelled, hollow, irregular galls, crowded to- gether round small liml »s. 13. Q. alba; C. forticornis Walsh. Syn. of gall: Q. ficus Fitch. 4. Clusters of small, narrow, deformed leaves, with the gall in the centre. 55. Q. prinoides ; gall-fly unknown: gall Q.frondosa Bassett. A. A. Swellings of the branches, twigs, etc.. which cannot be taken off", without breaking the branch. a. Swellings at the t i p of the twig. 20. Q. alba : C. batatus Fitch. 31. Q. phellos: C. q. phellos 0. S. 5. (I. alba; C. clavula Bassett. *32. Q. ilicifolia; C. similis 0. S. Syn. of gall. Q. tuber Fitch. Q. arbos Fitch ? b. Swellings iu the middle of the branch. 39. Q. rubra ; C. punctata Bassett. ID. Q. tinctoria ; C. podagrse Walsh, tl. Q. tinctoria: C. scitula Bassett. 38. Q. palustris: C. cornigera 0. S. *38. Q. ilicifolia: gall-fly unknown. III. Remarks supplementary to the two preceding Tables. a. Galls on the group of the white and chestnut-oaks. 1. C. strobilana 0. S.. Proc. etc. Ill, p. 690; ( 9 ; Q. prinus, var. bicolor); the gall Proc. etc. T, p. 254. This, as Mr. Reinhard informs me, is a true agamous Ct/nips, in the restricted sense of Hartig; it be- longs to Hartig's first division, which has the tip of the abdomen pube- scent. 2. C. (JLOBULUS Fitch, Rep. II, No. 312 ( $ ; Q. alba). Compare also (). S. Proc. etc. I, p. G8 and Bassett, Proc. etc. II, p. 328. Dr. Fitch, Mr. Walsh. Mr. Bassett and myself have found this gall on Q. alba. Mr. Bassett has found a similar gall, giving apparently the same insect, on Q. montana. (falls of the same kind were observed by me on Q. obtusiloba and by Mr. Walsh on Q. macrocarpa ; neither of us have obtained the insect, however. Cynips globulus belongs to the genus Ci/nips, in the restricted sense of Hartig. 3. C. centricola 0. S. Proc. etc. I, p. 58 ($; Q. obtusiloba'). Likewise a Ci/nips in Hartig's sense. 1865.] 351 4. C. tubicola 0. S., Proc. etc. T, p. (50 ( 9 ; Q. obtusiloba.') Again a Gynips Hartig, as Mr. Reinhard, td whom 1 have communicated spe- cimens, informs me. 5. C. CLAVULA Bassett in litt. (%n. G.q. tuber Bassett, non Fitch). ( 2 ; Q. alba). This insect, described by Mr. Bassett (Proc. etc. III. p. 685) as C. q. tuber Fitch, could not retain this name, as Mr. Bassett himself proves that itisnot the insect described by Dr. Fitch, the latter being a guest-fly. I have therefore adopted the name C. cluvula, sug- gested to me in a letter by Mr. Bassett himself. Although this insect has a pubescent thorax, like Cynips in the restricted sense of Hartig, 1 am not sure whether it is to be referred to this genus. The feet of my specimen are brownish-yellow and not brown, as mentioned in Mr. Bassett's description. According to this author's opinion (1. c.) this gall and that of C. q. arbos Fitch are produced by the same insect. Both C. q. tuber Fitch and 0, q. arbos Fitch are guest-flies; f compare below, the genus Geroptres). 6. C. SEMINATOR Harris. Inserts etc. p. 54*; Fitch. Rep. 11, No. 315 ; 0. Sack.. Proc. etc. 1, 69, No. 21 ; Walsh. Proc. etc. II. p. 465 (at the top); ( % $ ; Q. alba ). I had expressed some doubts about the identity of the specimens obtained by me from these galls, with those described by Fitch, as he says that the thorax of the $ is cinnamon-red. Mr. Walsh confirmed my doubts, venturing even the supposition that the gall-fly described by Fitch was a guest-gall-fly. I believe now to have found the solution of the difficulty. Having examined my speci- mens recently, after a lapse of several years. T find that the thorax of all the $ specimens has become reddish, whereas that of the % speci- mens has remained black. It seems probable, therefore, that Dr. Fitch had rather old specimens before him when drawing his description. C. seminator belongs to the genus Andricus Hartig. 7. C. petiolicola Bassett, Proc. etc. II, p. 325 ( % 9 ; Q. montana) ; compare also Walsh. Proc, etc. II, p. 487; ( Q. prirnts, var. discolor). This is the gall which was described by nie as occurring on Q. prinus ( Proc. etc. I, p. 66); at that time I obtained only parasites from it. Mr. Bassett has found a similar gall on Q. prinoides (1. c. II, p. 325), giving a closely resembling fly. A number of specimens of the latter, which I owe to Mr. Bassett, are smaller, the body of the female is con- stantly pale brown (and not black, as that of C. petiolicola^), and, as Mr. Bassett remarks, the veins of the wings are less distinctly marked. This is again a case of a phytophagic variety, which may almost be con- sidered as a distinct species. A similar gall on Q. alba, mentioned by .Mr. Bassett (1. c.) produces an insect which stands to C. petiolicola in 352 [May the same relation as the gall-fly of Q. prinoides. C. petiolkola is very probably an Anlricus. 8. C. fusiformis 0. S.. Proc. etc. I, p. 61 ( 9 ; Q. alba). This insect somewhat resembles C. petwlicola,and, as I possess only a single specimen of it, the difference indicated in the analytical table may not be a constant one ; I will try, therefore, to point out some others. Both species have, between the parapsidal grooves, two lines or grooves run- ning from the collare a short distance backwards; in 0. petiolkola they are much more distinct, but can hardly be called grooves, as they are smooth lines, easily perceptible, on account of their lustre, among the sculpture of the surface of the inesoiiotum ; in 0. fusiformis they ap- pear more like furrows, but not being very deep, they have less lustre than those of the other species, and are therefore less perceptible; a third, intermediate, impressed line is, in a certain light, perceptible be- tween them. The scutellum of C. petiolkola is more deeply wrinkled than that of 0. fusiformis. Both species have a short, sparse, micro- scopic pubescence on the sides of the mesonotum and on the scutellum, but this pubescence is more distinct in C. petiolicola. (Compare also below, No. 56, about the possible relationship between this gall and that of Figites chinquapin Fitch). 9. C. FUTILIS 0. S. (% ; Q. alba). 10. C. PAPILLATA 0. S., (£ ; Q. prinus) Proc. etc. I, p. 63-64, Nos. 13, 14. Compare also Bassett. 1. c. II, p. 320. These are probably the same species, attacking two different oaks and producing somewhat different galls. 11. C. flocci Walsh 9 . Proc. etc. II, p. 482 ( 9 ; Q. alba ?). This species, which I have not seen, may possibly belong to Andricus Hartig. Whether the gall is identical with the gall Q. lana Fitch is not certain. (Compare below, No. 45.) 12. C. PKZOMACHOIDES O. 8.. Proc. etc. I, p. 250 ( 9 ; Q. alba?). Although, at the time I described this insect, I was somewhat un- certain about the kind of oak to which the galls belonged, I hardly doubt now that this insect is the author of the gall called Q. pisum by Fitch (Pep. II. No. 310). the Cynips q. pisum Fitch being a guest- gall-fly. The gall described by Mr. Walsh as Q. erinacei ( Q. alba; gall-fly unknown) Proc. etc. II, p. 483. may be the same species, as Dr. Fitch also mentions prickles, occasionally occurring on his galls of Q. pisum. A difference somewhat more difficult to reconcile is, that Mr. Walsh's gall is said to occur twice as often on the upper side of the leaf as on the under side ; whereas both Dr. Fitch and myself found the gall V- pisum ( which is now to be called pezomachoides) always on the 1865.] 353 under side. This species probably belongs to the genus Teras Hartig, now united to Andricus. (Compare also the following species). 13. C. forticornis Walsh, Proc. etc. II, p. 4911 ( 9 ; Q. alba), is easily distinguished from the preceding species by its smaller size, the more uniformly reddish coloring of the head and the thorax, and especially by the structure of the antennae, which are shorter and stouter, whereas they are slender and filiform in the other species. The third antenna] joint of 0. forticornis is not longer than the two preceding taken together, obconical; the fourth is much shorter and also somewhat obconical, and all the following joints, except the last, are almost as broad as long. The third joint of 0. pezomachoides is about once and a half the length of the two preceding taken together, linear, slender ; the fourth, although shorter, has the same linear shape ; the following joints (5, 6, 7) gradually diminish in length, but are all elongated. This is also a Teras Hartig, and not Biorhiza Westw. 14. C. hirta Bassett, Proc. etc. Ill, p. 688 ( 9 ; Q. montand) ; is easily distinguished from the two preceding species by its large size, its uniformly brown coloring and its pubescent abdomen. The structure of its antenna) is like that of the antennae of C. pezomachoides 0. S. (Compare also No. 43, below.) 15. Philonixfulvicollis Fitch, Rep. II, No. 291; 16. Piiilonix nigricollis Fitch, Rep. II, No. 292, which the author found on snow in winter, but did not breed from galls, probably belong to Teras Hartig. Whether 17. Biorhiza nigra Fitch, Rep. II, No. 290, is really a Biorhiza, seems uncertain, but it is not improbable, as the Eu- ropean species of this genus likewise occurs on snow. 18. C. irregularis 0. S., Proc. etc. I, p. 65 ($ ; Q. obtusiloba) ; 19. C. MAJALIS Bassett, Proc. etc. III. p. 683 ( £ 9 ; Q. alba). Both galls are exactly alike, as I have ascertained by comparison, only my description applies to dry galls, Mr. Bassett's to fresh ones. Whether the gall-flies have to be considered as distinct species or as phytophagic varieties, I am uncertain, as I have never possessed more than a single specimen (without abdomen) of C. irregularis. By all means this re- semblance is close enough to render the description of C. majalis useful to consult for the identification of my species, the abdomen of which, as well as the female sex, have not been described by me. I have already discussed above (p. 340) the generic location of these species. 20. C. batatus Fitch, Rep. II, No. 311; Bassett. Proc. etc. Ill, p. 684 ( S 9; Q.alba); (about the generic location compare page 840, No. 4). Having received the gall and the fly from Mr. Bassett, I found, upon comparison, that the gall is identical with the one I took for that 354 [May of C. tuber Fitch (compare Proc. etc. I. p. 71, No. 27). Mr. Bassett may be right, and if I have any hesitation in this matter, it is on ac- count of the hard, seed-like bodies, mentioned by Fitch as belonging to the gall Q. tuber, and not mentioned in the description of the gall Q. batatus. These seed-like bodies are not to be found in the erall called Q. tuber by Mr. Bassett (now clavula Bassett). Whether the fly C. batatus Bassett is identical with batatus Fitch is also not quite cer- tain, as Dr. Fitch's short description may just as well apply to a guest- fly ( Ceropt res) usually obtained in abundance from the same gall. Still, as there is nothing in Dr. Fitch's description to contradict the synonymy, there is no harm in adopting it. 21. C. verrucarum O. S., Proc. etc. I, 62 (9; Q. obtusiloba.) Compare also above, page 340. Xo. 4. At the time when I described this species I was not positive about the sex of my specimens. I per- ceive now that they are really females. b. Galls on the group of the red, black and willow-oaks. 22. C. spongifica 0. S., ( % 9; Q. tinctoria). 23. C. oocoixk.e 0. S., Proc. I, p. 243-245 ( 9 ; Q. coccinea.) Mr. Walsh suggests (Proc. etc. II, p. 445) that as V- coccinea is probably nothing but a variety of Q. tinctoria, these two galls, which show but little difference and produce apparently the same insect, may be considered as identical. It may really be so. but the apparent identity of the insect alone would not be a sufficient proof, as it seems that in the group of Cynipidst to which C. spongifica belongs, the species are sometimes very difficult to distinguish. (Compare the two following species.) C.aciculata v) S. (Proc. etc. I, 56) being the dimorphous 9 °f 0. spongifica, all that has been said by me (Proc. etc. I. p. 244—245) about the assumed dif- ference between their galls will have to be cancelled. Still, it would be worth while to investigate whether these galls are absolutely identi- cal, so that no outward sign whatever indicates the contents of the gall. G. confluents Harris, Ins. etc. p. 546,3d edit, is apparently synonymous with C. aciculata, although Harris says that it occurs on the red oak. 24. C. inanis 0. S., Proc. etc. I, p. 242 ( % 9 ; (J. rubra). Com- pare also Walsh, Proc. etc. II, pp. 457, 458. At the time when I de- scribed this gall, I was uncertain whether it occurred on (J. rubra or 7. coccinea. Mr. Walsh found it on (J. rubra in the environs of Rock- Island ; and Dr. Fitch, (Rep. II, Xo. 317) who described this gall as that of Callaspidia confluenta Harris, likewise found it on the red o ; ik. Thus the question may be considered as settled. Mr. Walsh was the tirst to obtain the male sex of this species. I am not aware of any dis- 1865.] 355 tinctive character between G. inanis and C. spongifica; the galls, how- ever, are very different. It is not impossible that we have here not a species, but a phytophagic variety, habitually attacking a different spe- cies of oak, and, owing to the physiologic peculiarities of this species of tree, producing a s-oniewhut different gall. C.futilis and C. papillata (compare above, Nos. 9 and 10) stand probably in the same relation to each other. 25. C. coelebs 0. S., Proc. etc. I, p. (30, No. 7 ( % ; Q. rubra >. The male (the only sex I know), is remarkably like C. spongifica % , and differs only by its smaller size, its somewhat paler feet, and a less distinct areolet. The gall is very different in shape from the galls C. spongifica and C. inanis. although the principle of its structure is the same, as it contains a single uucleus, kept in position by fibres ra- diating towards the shell. If this gall really occurs on Q. rubra, of which I have but little doubt, it is a remarkable fact that two insects so closely allied as C. inanis and O. coelebs should produce so different galls on the same kind of oak. The females (both sexual and dimor- phous) of C. coelebs remain as yet to be discovered. 26. C. ilicifoli^e Bassett, Proc. etc. Ill, p. 682 ( % 9; Q. ilici/oiia ). The gall is spindle-shaped, like the preceding, but much larger and broader in the middle. 27. C. sixgularis Bassett, Proc. etc. II, p. 326 (£ 9; Q. rubra). Compare also Walsh, 1. c. p. 484. Whether 0. nubilipennis Harris (Ins. etc. p. 548, 3d edit.) is really this insect, seems very doubtful, as I do not perceive in my specimens any vestige of a " smoky cloud on the tip of its wings," which determined the choice of the name of the species. Nor do I think that the description " galls of the size and color of grapes" applies to the gall of G. nubilipennis better than to any other gall. The gall described by Dr. Fitch as that of C. nubilipennis is certainly identical with Mr. Bassett's gall, but whether it is identical with Mr. Harris' gall, is another question; it is equally uncertain whe- ther the gall-fly which Dr. Fitch calls C. nubilipennis, really belongs to his gall, as, according to his own statement, it was found on the ground among fallen oak-leaves. Under such circumstances, I would propose to retain Mr. Bassett's name for the gall and fly described by him. 28. C. Osten Sackenii Bassett, Proc. etc. II, p. 327 ( S ? ; Q. ilicifoliei). As Mr. Bassett observes, this gall is very like a gall on Q. coccinea, which I described (Proc. etc. I, p. 256). Nevertheless, I would hesitate to unite them before convincing myself of the identity of the gall-flies. I do not know the gall-fly of my gall ; the gall and gall-fly of 0. Sackenii I owe to the liberality of Mr. Bassett. 356 [May 29. C. FORMOSA Bassett, Proc. etc. III. p. 679 ( 9 ; Q. rubra). Is not this remarkable species, obtained from the gall in winter, a dimor- phous female of some as yet unknown % and 9 escaping from the gall in summer '( I have already made this suggestion above, page Ml. 30. C. SCULPTA Bassett, Proc. etc. II, p. 324 ( % $; Q. rubra). I have not seen this insect, nor its gall. May this not be the G. nubili- pennis Harris? (compare above, No. 27). Mr. Walsh has observed on Q. tinctorla a gall which he considers as identical with that of 0. sculpta (Proc. etc. Ill, p. 639). 31. C. Q. phellos 0. S., Proc. etc. I. p. 70. No. 23 ( 9 ; Q. pkdlos). 32. C. similis Bassett, Proc. etc. Ill, p. 685 (% 9; Q. ilici/olia). This gall-fly is very like the preceding, and it would require a larger number of specimens than I possess in order to discover permanent differences. G. similis is somewhat larger, its abdomen is apparently broader, its coloring somewhat darker, etc. Their galls, judging by Mr. Bassett's description of that of G. similis, are also very much alike. 33. C. Q, NIGR^E 0. S., Proc. etc. I, p. 66, No. 17 ( % 9 ; Q. nigra). The gall resembles that of G. tumifica O. S. ; the gall-fly is easily dis- tinguished by its coloring. 34. C. tumifica, n. sp. ( % 9 ; Q. tinctoria ). Obtained by me from a swelling on the midrib of the leaves of Q. tinctoria. Most of the swellings were near the basis of the leaf; some of them even on the leaf-stalk. Cut open, they show numerous seed-like bodies, arranged in rows, and each containing an insect. C. tumifica n. sp. % 9 ■ 9 0.09 long. Head brownish-red or yellowish-brown :•& blackish spot on the vertex encloses the ocelli ; antennse 14-jointed, the last joint is much shorter than the two preceding joints taken together; their color is yellowish-brown, the last five or six joints are brown. Mesonotura brown, mixed with reddish in suoh a way that the parapsidal grooves are on reddish ground; a space adjoin- ing the scutellum is also reddish ; the surface of the mesonotum is finely, dense- ly, but irregularly rugose and opaque; between the parapsidal grooves two narrow, jwlished lines run from the collare a short distance backwards; scu- tellum brown, deeply rugose, and therefore opaque; abdomen dark brown, almost black, polished, with a microscopic punctation on the margin of the seg- ments ; sheath of the ovipositor not reaching above the dorsal line of the abdo- men ; feet brownish-yellow; femora and tibiaj more or less infuscated; the pos- terior ones more than the foremost ones ; tarsi brownish-yellow, brown at tip. Wings hyaline ; no areolet ; stout veins brown. A single female specimen, bred from galls found in June, near Dobb's Ferry, New York, on Q. tinctoria. Mr. Bassett having found the same gall on Q. tinctoria and a similar one on Q. rubra, communicated me the flies bred from one of them, he 1865.] 357 was not quite sure which. These gall-flies altogether resemble C. tumi- fica, and I do not doubt of their identity. Some of the specimens had the whole mesonotum reddish, and only a broad stripe in the middle, not reaching the scutellum, brown. As among these specimens there were several males, I give here their description. £ 0.06 — 0.07 long; altogether black, except the antermte, which are brownish, and the feet, which are like those of the £: antennae 15-jointed; third joint elongated, curved; sculpture of the mesonotum exceedingly fine, almost im- perceptible, and for this reason the mesonotum moderately shining ; the two smooth lines between the parapsidal grooves are perceptible : abdomen very sruall in comparison to the body; wings like those of the J; veins dark brown. G. modesta and G. tumifica are very closely allied and their galls also; both differ principally in size. The insects differ, moreover, by the number of joints of the 9 antennae, by the coloring of the latter, which is a uniform brownish-yellow in G. modesta, whereas the antennae of tumifica are brown at the tip ; by the coloring of the mesonotum of the female, which is uniform brown in G. modesta and is more or less mixed with reddish in C. tumifica. These two species, with G. q. nigrse, form a distinct group, having the structure of their galls, the absence of an areolet, the sculpture and coloring, etc. in common, and it is pro- bable that the % of C. modesta is, like that of the two other species, distinguished by its small size and dark coloring. It is also worthy of notice that the ovipositor of G. nigrse, and especially of G. tumifica is very often entirely exserted from the sheath, in the shape of a large, free spiral, outside of the abdomen. I do not know how to explain this peculiarity, which I have not observed so constantly in any other species. 35. C. modesta 0. S. Proc. etc. T. p. 65. No. 16. (9 . Q. rubra.) Compare the preceding species. 36. C. operator O. S. Proc, etc., I, p. 256. ( % 9 ; Q. nigra.) Compare also Bassett, 1. c. II, p. 332. This species has 12-jointed 9 antennae; the length and structure of the sheath of the ovipositor, the structure of the abdomen and the neuration of the wings will probably entitle C. operator to become, at once, the type of a new genus. The pe- culiar character of the neuration (absence of the branch of the subcostal, running towards the margin of the wing) it has in common with ( '. similis and G. quercus phellos. Mr. Bassett has observed galls similar to those of C. operator O. S. (Q. nigra), on Q. ilicifolia and Q. palustris. He communicated to me the insects obtained from these calls, and I can- not discover any important difference, except that the hind tibiae of the specimens obtained from Q. ilicifolia were not infuscated, and the subcostal as well as the transverse veins, were somewhat darker. 358 [May 37. C. VENTRICOSA Bassett. Proc, etc., Ill, p. 681. ( 9 . Q. llici- /otlu.) 38. C. cornigera 0. S. I have described the gall, which I observed in considerable number on Q. palustris (Proc, etc., I, p. 251). Since then, I have obtained the gall-fly, and let its description follow. Whe- ther the gall observed by Mr. Bassett on Q. Uicifolia (Proc. II, 328 ) belongs to the same species is very uncertain. I have not seen it. C. cornigera n. sp. 9 • 0. 11 long. Black; the head comparatively broad, as broad as the thorax; face finely and indistinctly pubescent: irregularly rugose, semi-opaque : a few indistinct striae converging towards the mouth on both sides : mandibles reddish, their tips black: palpi brownish-yellow: front opaque, ver- tex with some more lustre, finely, irregularly sculptured; antennae 1-t-jointed, yellowish-brown, brown towards the tip: third joint nearly as long as the two preceding taken together : the following joints gradually diminish in length ; joints 8 to 13 differ but little in length; the last joint is about once and ahalf the length of the preceding. Humeral parts of the collare coarsely rugose, opaque, in contrast to the comparatively smooth and shining mesonotum ; the latter with delicate, dense transverse microscopic rugae, not much diminishing the lustre of the surface ; three moderately distinct impressed lines run from the collare some distance backwards; parapsidal grooves very distinctly mark- ed, but their margins are less well cut or less smooth than usual, as if the groove was formed by a series of confluent punctures; the lateral grooves partake of the same character, and are somewhat curved, with the convexity on the out- side ; tegulae yellowish-brown: pleurae densely and irregularly sculptured, opaque, except a shining spot on their upper portion: scutellum deeply and coarsely rugose; abdomen black, or rather dark-brown, polished, the margins of the segments lighter brown : second segment comparatively large : ventral valve ending in a short apieule, bearing a tuft of hairs; feet brownish-yellow, tips of tarsi brown ; hind femora and tibiae infuscated : middle femora some- times also. Wings hyaline, somewhat whitish, stout veins pale-brownish : areo- let distinct. I possess only two specimens, bred from the gall ; one of them is certainly a female ; the abdomen of the other is somewhat injured, and as, at the same time the 14th antennal joint shows an indistinct sub- division in two, it is not impossible that this is a male. 39. C. punctata Bassett, Proc. etc. II, p. 324. ( 9; Q. rubra.) 10. C. podagra Walsh. Proc. etc. II, p. 492. ( 9 ; Q. tinctoria.) About these species probably being merely phytoghapic varieties, com- pare Walsh, 1. c. in the foot-note. Although more than 120 specimens were reared by both authors, no male has yet been found.* 41. C. scttula Bassett, Proc. etc. Ill, p. 683. (S }. Q. tinctoria.) The difference in the size notwithstanding, there is a striking analogy in shape and sculpture between this species and the former. I have * I have found nearly 600 specimens — all females. — H. F. Bassett. 1865.] 350 already commented upon this analogy (page 342). The galls seem like- wise to be somewhat alike. 42. C. quercus palustris 0. S. Proc. etc. I, p. 62, No. 11.. 1. c. I. p. 251 ; Walsh, 1. c. II, p. 488 ; Bassett, 1. c. II, p. 329. This gall, originally found by me on Q. palustris, has been found since on Q. tinctoria. coccinea, falcata, imbricaria and ilirifolia. The insects from all these galls belong apparently to the same species. The insects producing the following galls, are as yet unknown and some of them may not belong to the Cynipidze, at all. 43. Gall on Q. prinos, described by me, Proc. etc. I. p. 254. May it not be the same as the gall of C. hirta Bassett ( Q. montana) ? 44. Grail on Q. palustris, described by me, Proc. etc. I, 253. The gall described by Mr. Walsh (Proc. etc. II, p. 481) under the name of Q. pilula, (Q. tinctoria'), the gall-fly of which he did not obtain, is not unlike my gall of Q. palustris. Mr. Walsh's gall is the pro- duce of a Oecidomyia; the orange-colored larvae, mentioned by this author (1. c. at the bottom of the page) are larvae of that genus of Diptera ; and the gall itself is the same which has been mentioned by me, (in the Monographs on N. A. Diptera, Vol. I, p. 201, line 10 from the top,) in connection with Cecid. symmetrica 0. S. It is not impro- bable, therefore, as already suggested by me (Proc. etc. I, p. 253), that the gall of Q. palustris there described is likewise the produce of a Oecidomyia. The fact that Mr. Walsh bred an inquilinous gall-fly, Ceroptres (Amblynotus) inermis Walsh, from his gall is very remark- able, and I believe the only instance ou record of a Cynipidous insect living as guest in a dipterous gall. 45. Cynips q. lana Fitch (Q. alba), being probably not a Cynips, but a guest-fly, perhaps Syncrgus, the gall-fly of the gall which Dr. Fitch describes under the name of Q. lana. is as yet unknown. Mr. Bassett has communicated to me specimens of a gall answering exactly to Dr. Fitch's description and figure. Until the gall-fly of Q. lana Fitch (which gall will have to be called then by the name of that gall-fly) is bred, the question of the identity of this gall with that of C.flocci Walsh, can hardly be settled. Judging by the measurements given by Mr. Walsh ( 0.2 — 0.4), his gall seems to be usually smaller. (Compare Walsh, Proc. etc. II, p. 482.) 46. Grail on Q. ubtusiloba similar to the preceding, and described by me Proc. etc. I, p. 62. My specimens are of a darker, more brownish- yellow color than the gall Q. lana Fitch, and seem usually to occur near the basis of the leaf, whereas Q. lana is generally found about the 360 [Mat middle of the leaf. It may be inferred hence, that these galls are the produce of two different insects. 47. These two galls (on Q. primus and alba) were mentioned by me, Proc. etc. I, p. 62, in connection with the gall of 0. verrucarum. 48. Gall on Q. palustris, described by me, Proc. etc. I, p. 253. 49. Gall on Q. obtusiloba, described by me, Proc. etc. T, p. 255. 50. Gall on Q. alba, described by me, Proc. etc. I, p. 255. When dry, these galls become brown and hard like wood ; being crowded to- gether, their lower ends become wedge-shaped. 51. Gall on Q. rubra, called Q. S [Mat it too much importance when he says (Germ. Zeitschr. Ill, p. 343 l that it distinguishes the genus. Misled by the impressed line on the second abdominal segment, which is not mentioned anywhere in Hartig, I had previously consid- ered this genus as belenging to the Flgitidse (Proc. Ent. Soc. I, p. 67) and had doubtingly referred it to Amblynotus Hart. I owe the cor- rection of my error to Dr. Reinhard, to whom I communicated two species ; a small one, reared from the gall of C. q. verrucarum, which has slightly incrassated (sub-clavate) antenna?, and a larger one, reared from the gall of C. q. b seen from the side, but little, or not longer than broad 6 6. Long ( 9 )• ventral valve considerably projecting. .6. S. albipes Walsh, % 9 • Long ( 9 )> ventral valve usually concealed 4. S. campanula 0. S. 9 • 1. Synergus oneratus Harris. Syn. Cj/nips oneratus Harris, Ins. etc. 3d ed. p. 54S. Fitch, Eep. etc. II, No. 313. This species (0.12 — 0.14 long) is variable in coloring, the black stripe in the middle of the thorax and of the head having more or less ex- tent ; in some specimens the head has no black spot at all, and the stripe on the thorax is also obsolete. It is distinguished from the fol- lowing species: 1st, by its larger size; 2d, by the antennae of the 9 being 14-jointed. If extended backwards, they would almost reach the tip of the second abdominal segment; the joints three and four are of nearly equal length, linear (that is, their length being out of all pro- portion to their breadth) ; joint four is a little shorter than three, and the following gradually diminish in length till the thirteenth joint, the length of which is about double its breadth; the fourteenth is about once and a half the length of the preceding; the antennae of S. ligni- cola are shorter, that is, if extended backwards, they would hardly reach the middle of the second abdominal segment; the fourth joint is slightly more than half the length of the third, not linear, its length being a little more than twice its breadth; the breadth of the eleventh and twelfth segments is but little more than their length ; the thir- teenth, or last joint, is about twice as long as the twelfth. As to the male sex, the proportional length of the third and fourth joints of S. lignicola %> is the same as in the 9 j that is, the third is almost twice 374 [May as long as the fourth, and I infer from this that the % of S. oneratus which I do not possess, has, like the 9 > the third and fourth joints of nearly the same length ; 3d, by the mesonotum always having more or less yellow on the sides, whereas in S. lignicola it is altogether black, the yellow being strictly confined to the collare ; 4th, by the black spot on the upper part of the abdomen having a more definite, oblong out- line, the tip of the abdomen (or rather of its second segment) and its sides remaining yellow, whereas the limits of the black color in S. lig- nicola are less well defined ; this color extends in the latter to the very tip of the second segment and merges into brownish or brownish-yellow on the sides; in many 9 specimens the venter and the ventral valve are again blackish; 5th, the ventral valve of S. oneratus is shorter and truncate at the tip; that of S. lignicola ends at an angle of about 45°. I possess five 9 specimens of this species, obtained from the galls of C q. globulus Fitch (on Quercus alba), from a similar gall on Q. ob- tusiloba and from that of C strobilana 0. S. 2. Synergus lignicola 0. S. Syn. S. lignicola 0. S., Proc. Ent. Soc. Phil. I, p. 252. S. rhoditiformis Walsh, Proc. Ent. Soc. Phil. II, p. 499. The synonymy is admitted by Mr. Walsh himself, to whom I have communicated specimens of my S. lignicola. My description was drawn from rather pale specimens, and has to be corrected in the fol- lowing points : 1st. The collare has a brown or black spot in the mid- dle, which is more or less extended, being sometimes confined to a narrow brown line, in front of the angle formed by the mesonotum an- teriorly and sometimes extended into a large black spot, which crosses over to the occiput, and occupies a small portion of it round the neck ; the specimens bred by Mr. Walsh from the gall of 0. q. podagrse (Q. tinctoria), and described as S. rhoditiformis. seem to have had this spot, usually, of a large size. 2d. The pectus is black and the middle cox:t not inserted on yellow ground as stated by me. The question of the presence or absence of "two slight subdivisions" of the last joint of the 9 antennae is unimportant, as it depends on the strength of the lens used and on that of the eyesight. I perceive it in S. lignicola, as well as in the specimens of S. rhoditiformis, which I owe to the kindness of Mr. Walsh. His description being more detailed and accurate than mine, will have to be relied upon for determining the species, keeping, however, in view the remark about the collare, given above, and the cir- cumstance that the ventral valve is not always of " a highly polished black." but sometimes paler. As Mr. Walsh's specimens, reared from 1865.] 375 the gall of C. q. podagrse (Quercus tinctoria), seem to have had in general a darker coloring than my specimens, reared from the gall of C. q. cornigera (Q. palustris), it is probable that we have here a^ain an instance of two races of the same species living on different trees. The differences between this species and 8. oneratus have been detailed under the head of the latter species. ?>. Synergus laeviventris 0. 8. 9 • Syn. Synophrys f Iceviventris 0. S. Proc. Ent. Soc. Phil. I, p. 57. Synophrus IcEviventris Walsh, Proc. etc. II, p. 494. (Exparte.) 0.07 — 0.08 long. Head reddish-brown, vertex darker, antennae brownish-yel- low, second joint not much shorter than the fourth, the third about one-third longer than the fourth; joints four, five and six of about equal length; the four- teenth or last joint is somewhat less than once and a half the length of the pre- ceding; thorax black, moderately glossy, finely rugoso-puactate and pubescent; scutellum gibbose, with a slight, sharp, recurved, elevated margin ; (thorax and scutellum in older specimens often become brownish or reddish-brown) ; parapsidal grooves distinct their whole length: foveas at the base of the scu- tellum rather small, but distinct: pleurae black or brownish, polished and glossy under the root of the wing, aciculate below, punctate anteriorly; first abdomi- nal segment striate; the second segment, covering all the following, is chestnut- brown or black, paler on the under side; its shape, seen from above, is elon- gated-ovoid, the tip being drawn out in a point; the side-view is almost lanceo- late, the tip appearing likewise pointed: held against the light, the valves of the ovipositor, as well as the ventral valve, may be seen, concealed as they are under their unusually long second joint: the ovipositor alone protrudes some- times beyond the joint; feet brownish-yellow, extreme tip of tarsi more or less brownish; (one of my specimens has the hind tibiae and tarsi somewhat infus- cated); wings hyaline, veins pale; areolet almost obsolete, as one side of it only (which is the prolongation of the second transverse vein,) is stout and distinct; the two other sides, as well as the whole course of the cubital vein, are almost obsolete. Four 9 specimens, reared from the galls of C. spongijica, C. centri- cola and the gall on Q. falcata, described by me Proc. etc. I, p. 69, No. 20. It may not be useless to observe that the European S. thau- macera Dalm., which seems to be closely allied to our species, has the third joint of the antennae enormously developed in the male sex. Mr. Walsh having had the kindness to communicate to me specimens of the insects mentioned by him (Proc. Ent. Soc. II, p. 494) as Syno- phrus Issoiventris O. S., I convinced myself that those specimens which he had bred from the gall of C. q. spongifica really belong to the pre- sent species; but that the specimeus obtained by him from the gall G. q. forticornis are the species of Oeroptres mentioned above, p. 51, as C. Jicus Fitch, and closely resembling *$'. Iseoiventris in its coloring. The remarks of this author (1. c.) have to be sifted accordingly. 376 [Mat 4. Synergus campanula, n. sp. 9 • 0.08 — 0.10 long. Head black, except the face, which is brownish below the antennae and brownish-yellow above the mouth; the brownish or yellowish co- loring sometimes extends above the antennas in the shape of a narrow stripe along the eyes ; vertex black, little shining, smooth. Antenna? brownish-yel- low, a little shorter than the body; 14-jointed ( 9 ) : the fourth joint is a little shorter than the third, the following joints gradually decrease in length; the fourteenth is about once and a half the length of the preceding joint. Thorax deep black, and but little shining, with dense, delicate, transverse rugae, evenly spread over its upper surface, which is also clothed with a short, fine and scat- tered pubescence; parapsidal grooves not very deep, but distinct: a vestige of an intermediate furrow, especially visible in a certain light, towards the scu- tellum; two minute, parallel, glabrous lines, running a short distance from the middle of the collare, backwards; (they are visible under a strong lens only): scutellum rather large, gibbose, densely and deeply rugose: its basal foveas ra- ther small; pleura? with a smooth, black, polished space, the lower part of which is finely aciculate; scapula? yellow. First segment of the abdomen longitudi- nally striate; the second segment, concealing all the following, has the shape of a regular oval when seen from above; seen from the side its longitudinal dia- meter is about equal to the transverse one; its outline is almost that of half a circle, which has a flat arc (the dorsal side of the segment) instead of a diame- ter; the ventral valve or the tip of the sheath of the ovipositor are sometimes, but not always, protruding beyond the hind edge of the second segment; the abdomen is polished, black, sometimes brownish along the hind edge; feet brownish-yellow, tips of the tarsi brown; veins of the wings pale; areolet of medium size, almost obsolete, as one side of it only (the prolongation of the se- cond transverse vein,) is short and distinct. Three $ specimens reared from the gall of Cy nips q. globulus Fitch, (white oak) and seven from a somewhat similar gall ( Quercus bicolorP), described by me in Proc. Ent. Sue. I. p. 250. ■'/. Synergus dimorphus n. sp. % £. Female. 0.12 — 0.13 long. Head black, except the face, which is brownish- red, mixed with black, below the antenna;; mandibles (except their tip, which is black), and more or less space near their roots on the cheeks, yellowish ; the brownish coloring of the face extend above the antennae, in the shape of a nar- row stripe along the eyes : vertex black, moderately shining, with sparse, broad, flat-bottomed punctures. Antennae brownish-yellow, 13-jointed, about three- fourths the length of the body ; the fourth joint is a little longer than one-half of the third; joints four, five and six are nearly of the same length; the follow- ing joints are somewhat shorter; the last joint is about equal to the two pre- ceding taken together. Thorax black, moderately shining, with very rough, but not very dense transverse rugosities ; pubescence short and very sparse ; parapsidal grooves well marked, punctured at the bottom; scutellum coarsely sculptured; its basal foveae are indistinct : the smooth space of the pleurae is almost entirely aciculate; scapulae brownish-yellow. First segment of the ab- domen longitudinally striate; the second segment, concealing all the follow- ing, has the shape of an elongated oval, when seen from above; seen from the side, its longitudinal diameter distinctly exceeds the transverse one; the ven- tral valve, ending in a short, pubescent point, usually projects beyond the edge of the second segment, its angle is about 60° or 70°; abdomen polished, black ; 1865.] 377 ventral valve yellowish-brown : feet brownish-yellow; hind tibire and a part of the first joint of the hind tarsi infuscated: tips of all the tarsi brownish; veins of the wings brownish ; areolet rather small, its structure like that of the preceding species. Male. 0.10 long; antennse 15-jointed, third joint excised below, fourth half as long as the third; head yellow, except a black spot on the vertex, which in- cludes the ocelli; a part of the collare and of the pleurae also yellow, which color seems to be variable in extent in different specimens; abdomen truncate at the tip, bell-shaped, when seen from the side ; tbe sculpture of the head and thorax and the coloring of the feet are the same as in the female. Numerous 9 an d t wo $ specimens, found in the box containing my collection of galls ; I have not been able to ascertain what gall pro- duced them. This species is distinguished from S. campanula by its more elon- gated shape, the sculpture of the vertex, the coloring of the hind tibiae, etc. Viewed from above, the abdomen is more elongated-oval than that of S. campanula ; the sculpture of the thorax appears rough, as the wrinkles seems to be due to sharp, projecting ridges, whereas the tho- rax of *S'. campanula, although more densely wrinkled, has a handsomely smooth appearance ; the pubescence on the thorax of the latter species is more dense, etc. Besides, the antennae of the $ of S. dimorphus are 13 and not 14-jointed. The punctures on the vertex of this species can be perceived only under a rather strong lens. 0. Synergus albipes Walsh, % 9 • Syn. Synophrus albipes Walsh, Proc. Ent. Soc. II, p. 496, 17. Antennae ( $ ) 14-jointed. according to Mr. Walsh, the last joint one- third longer than the preceding one (the tip of the antennae of my only 9 is broken.) The entire body is black, except the yellow palpi, the yellowish-brown mandibles and the brownish-yellow scapulae. The ver- tex is moderately shining, without any apparent punctures. The thorax is moderately shining, very finely and evenly rugoso-punctate; its pu- bescence short, moderately dense and very even ; the parapsidal grooves but moderately distinct ; the polished space on the pleurae microscopi- cally aciculate. The first abdominal segment is longitudinally striate; " the sheaths of the ovipositor do not project beyond the line of the back, or scarcely, and in a single 9 only" (Walsh) ; the ventral valve is considerably projecting beyond the edge of the second segment ; its tip at an angle of more than 45° ; it is extended in a very short apicule; the shape of the second segment, as seen from the side, is nearly like that of S. dimorphus. Feet pale whitish-yellow, tarsal tips brown ; " in a single % the hind femora and tibiae, and in a less degree the in- termediate ones, are brown" (Walsh). Mr. Walsh reared many % 9 specimens from the gall of C. a. floe c I 378 [May Walsh (=q. lanse Fitch?) in August; to him I owe the communica- tion of some specimens. 7. Synergus mendax Walsh. 2- Proc. Ent. Soc. II, 498. A specimen, communicated to me by the author, enables me to add the following remarks to his description : 1st. The sculpture of the mesonotum is very rough and not unlike that of S. dimorphus, consist- ing apparently of transverse, projecting ridges, with intervening smooth and moderately shining spaces; only the ridges appear here moi - e ele- vated and sharper, but at the same time wider apart than in $. dimor- phus and thus the surface of the thorax is more rough, but at the same time more shining than the latter species. 2nd. The polished spot on the pleurae is almost smooth in this species; however, under a strong lens and in an oblique light, the sculpture, common to the other species of the genus, becomes apparent here. 3rd. The general shape of the body is more elongated than in S. dimorphus ; the abdomen, seen from the side, appears more elongated, as its transverse diameter appears, comparatively, much shorter than that of the other species. 4th. Mr. Walsh calls the ventral valve "unarmed"; but the specimen he com- municated me, of this species, distinctly shows a projecting point beyond the tip of the valve. Bred by Mr. Walsh from the gall of C. q. podagrse Walsh, together with S. llgnicola 0. S. {S. rhoditiformis Walsh). p. s. — Since this article was presented to the Society, I have received from Mr. Bassett galls of his Cynips hirta. They look precisely like the galls of Q- pisum Fitch {=pezomachoides nob?) only they seem usually to be a little smaller, and the netting on the surface is more dense. In the Synoptical Table of the galls, those of C. hirta have therefore to be put next to those of C. pezomachoides. Both produce apterous gall-flies. IKfttX, Being at the same time a synonymical catalogue of all the described N. A. Ci/nipidse, exclusive of Figitidse. Observation. — An asterisk near a specific name signifies that I have not seen the species ; an interrogation (?) that the location of the spe- cies in the genus is doubtful. Species united by brackets are probably phytophagic varieties. The subdivision of the genus Cynips in genera is subject to the doubts and limitations expressed in the body of my paper, and is, for this reason, only provisional. I have thought it con- venient to retain the subdivision of this genus in two groups, according to the kinds of oaks which the species inhabit ; this subdivision is, as I have shown, very often coincident with the generic subdivisions, although I would not affirm that it is always so. 1865.] 379 A. GALL-FLIES. I. CYNIPS. (Quercus). Group of White and Chestnut-oaks. PAGE Cynips Hartig. 1. C. strobilana 0. S 350 2. G. globulus Fitch 350 Syn. Callaspidia q. glo- bulus Fitch. 3. C. centricola 0. S 350 4. C. tubicola 0. S 351 ?5. C.clavu/a Bassett 351 Syn. C. q. tuber Bassett (nou Fitch). Syn. of gall: Q. tuber Fitch Q. arbos Fitch Andricus. 6. C. seminator Harris 351 7. C. petiolicola Bassett 351 8. C.fusiformis 0. S 352 ( 9. C. futilis 0. S 352 (10. C.papillata 0. S 352 ?*11. C. flocci Walsh 352 Teras. 12. C. pezomachoides 0. S 352 Syn. of gall : Q. pisuin Fitch? 13. C. fortlcornis Walsh 353 Syn. of gall: Q. ficus Fitch. 14. C. hirta Bassett 353 *15. C. ful vicollis Fitch 353 Syn. Philonix fulvbiollis Fitch. *16. C. nigricollis Fitch 353 Syn. Philonix nigricollis Fitch. Biorhiza Westw. ??*17. C. nigra Fitch 353 Syn. Biorhiza nigra Fitch. Nov. gen ? (Allied to Spathegaster Hartig.) ( IS. C. irregularis 0. S 353 { 19. C. majalis Bassett 353 20. C. batatus Bassett (Fitch? )..353 21. C. verrucarum 0. S 354 Group of red, black and willow-oaks. PAGE Nov. gen. 22. C. spongifica 0. S 354 Syn. C. aciculata 0. S. (di- morphous 9 •) C. confluens Harris (Syn. of aciculata.) Syn. of gall: confluens Harris. 23. C. q. coccineoz 0. S 354 24. C. inanis 0. S 354 Syn. C. confluens Fitch (non Harris.) 25. C. coelebs 0. S 355 26. C. ilicifolioz Bassett 355 27. C. singularis Bassett 355 28. C. Osten-Sackenii Bassett 355 ?29. C. formosa Bassett 356 ?*30. C. sculpta Bassett 356 (The following species may be ar- ranged in groups, which will per- haps yet constitute as many ge- nera) . 31. C. q.phellosO. S 356 32. C. similis Bassett 356 33. C. q. nigra: 0. S 356 34. C. tumifica 0. S 356 35. C. modesta 0. S 357 36. C. operator 0. S. .357 37. C. ventricosa Bassett 358 v': vH *■& '& 38. 0. cornigera 0. S 358 39. C. punctata Bassett 358 40. C.podagroz Walsh 358 41. C. scitula Bassett 358 42. C. q. palustris 0. S. .359 380 [May R. dichlocerus Harris. Syn. Cynips dichlocerus Harris. R. bicolor Harris. Syn. Cynips bicolor Harris. II. RHODITES (Rosa.) R. ignota 0. 8. .361 R. rosoz Linn. R. radicum 0. S. R. verna 0. S. D. nebulosus 0. S. D. cuscxdozformis 0. S. III. DIASTROPHUS (Rubus, Potentilla.) D. -potentilla Bassett. B. GUEST-FLIES. ATJLAX. .361 A. sylvestris 0. S 366 A. pirata 0. S 366 lA.futilis 0. S 366 1 A. semipiceus Harris 366 Syn. Cynips semipiceus Harris. CEROPTRES. 1. C. ficus Fitch 368 Syn. Cynips q. ficus Fitch. Synophrus laeviventris Walsh (exparte). 2. C. petiolicola 0. S 369 j Syn. Amblynotus ? petiolicola 0. S. Syn. ?Amblynotus ensigerWalsh C. inermis Walsh 369 Syn. Amblynotus inermis Walsh C.pisum 0. S 369 Syn. Sarothrus pisum 0. S. C. arbos Fitch 370 Syn. Cynips q. arbos Fitch. C. tuber Fitch 370 Syn. Cynips q. tuber Fitch. SYNERGUS 1. S. oneratus Harris 373 I 4. S. campanula 0. S 375 Syn. Cynips oneratus Harris. 2. S. lignicola 0. S 374 Syn. S. rhoditiformis Walsh. 3. S. laeviventris 0. S 375 Syn. Synophrus? lseviventris O.S. Syn. Synophrus laeviventris Walsh (exparte). 5. S. dimorphus 0. S 376 6. S. alb ipea Walsh 377 Syn. Synophrus albipes Walsh. 7. S. mendax Walsh 378 Species of doubtful location. Figites chinquapin Fitch, see No. 56. .361 Cynips q. pisum Fitch, see No. 57 361 Cynips q. lana Fitch, see No. 45. .359 ERRATA. Page 334. line 25, for "suggests himself" read '• himself suggests." " 336, line 15. for " on" read " in." " 366, line 11, for " kynipidx" read " Cynvpidx." 1865.] 381 Descriptions of several new species of North American COLEOPTERA. BY JAMES H. B. BLAND. (Communicated April lOth, 1865.) The insects described in the present paper were collected during the past year in Colorado Territory, by Mr. James Ridings, and presented by him to the Society. Pterostichus inornatus n. sp. Body black; head glabrous, furnished with several long, erect, brown- ish hairs ; two deep impressions above the base of the mandibles ; la- brum rugose, coarsely and deeply punctured on the lateral and anterior margins; a long brown hair proceeding from each puncture; mandibles piceous, palpi chestuut-brown ; antennae piceous, clothed with prostrate fulvous pubescence, and long, erect, fulvous hair. Thorax widest in front of the middle, narrowed slightly to the anterior margin, and nar- rowed posteriorly to three-fourths the width of the elytra, obsoletely rugose; a curved transverse line near the anterior margin; central lon- gitudinal line deeply impressed, becoming obsolete before reaching the margins; a deep puncture near the posterior angles, a deep longitudi- nal depression extending about one-third of the length of the thorax, between the central line and the lateral margin. Elytra striated, punc- tures of the striae obsolete ; interstices convex, closely and minutely punctured ; second striae from the lateral margin coarsely and irregu- larly punctured ; closely punctured near the tip ; beneath piceous, minutely punctured; anterior tibiae furnished with several rows of up- right, fulvous bristles, those on the posterior tarsi somewhat prostrate. Length 6 to 7 lines. Pterostichus agrestis n. sp. Body black, shining; head furnished with a few long, fulvous hairs; antennae dark brown, clothed with fulvous pubescence; mandibles black; palpi dark brown. Thorax smooth, widest in front of the mid- dle ; sides rounded to near the posterior angles ; a deeply impressed longitudinal line; thorax deeply impressed near the posterior angles, the impression closely and rugosely punctured, the punctures extending across the base. Elytra striated, striae regularly punctured; interstices flattened, second lateral stria coarsely punctured at the rounding to the tip. Beneath black; head, prothorax and side pieces of the meso- and nietathorax opaque, rugosely punctured; meso- and metapectus shining. Legs dark brown, minutely punctured. Length 5i lines. 382 [May Necrophorus Hecate n. sp. Body black, shining, deeply punctured ; elytra with four rufous marks. Head minutely punctured, a deep glabrous depression on the centre between the antennas, and a transverse suture back of the antennas ; central line not deeply impressed ; a deeply impressed, obliquely rounded line extending from the base of the antennas towards the centre within one-fourth of the base, forming a heart-shaped disc; suddenly contracted near the base and forming a neck; antennas black, club rufous; mouth furnished with pale fulvous hairs. Thorax neatly punctured, broadest in front of the middle; central line not deeply impressed; lateral and posterior margin rounded and flattened ; scutellum black, neatly punc- tured. Elytra deeply punctured, humeri prominent; two elevated lon- gitudinal lines, commencing at the base of the scutel, separating to the width of one line, becoming obsolete near the tip ; a wide, transverse, uneven, rufous mark in front of the middle, one on the posterior fourth, leaving the tip narrowly margined with black. Beneath black, closely punctured; thorax and tarsi clothed with golden pubescence; abdomi- nal segments furnished with black cilias. Length 7 to 10 lines. Agrilus pulchellus n. sp. Head metallic-green, closely punctured, deeply impressed between the eyes; antennas black. Thorax metallic-green, closely punctured ; central line distinct, a deep dilated fovea on the dorsal surface extend- ing from the anterior margin to the centre, also deeply impressed along the lateral margin. Elytra with lateral rufous vitta, covering the greater portion of the surface ; centre of the dorsal surface green ; tip narrowly margined with green, closely punctured. Beneath black, covered with silvery pubescence. Length 5a lines. Nyctobates subljevis n. sp. Body black ; head somewhat shining, coarsely punctured, flattened, with the surface uneven between the antennas ; labrum minutely punc- tured; mouth furnished with dark brown hair. Thorax opaque, closely punctured; dorsal surface flattened, widest before the middle, ante- rior angles much rounded; lateral margins irregular. Elytra convex, somewhat shining, strias obsolete ; nine longitudinal rows of punctures, not deeply impressed ; interstices minutely punctured, with occasional rugoseness. Beneath minutely punctured; tarsi beneath brown-serice- ous. Length 10 \ lines. Anthophylax? mirificus n. sp. Body black, clothed with short, erect, brownish hairs; head grossly punctured, somewhat shining, central line deeply impressed between 1865.] 383 the antennae, becoming obsolete near the base ; a broad transverse de- pression back of the eyes ; antennae about one-half the length of the body ; third and fourth joints equal, fifth joint as long as the third and fourth combined; palpi piceous; mouth furnished with dark brown hairs. Thorax uneven, grossly punctured, opaque ; a deep transverse line near the anterior and posterior margins; central longitudinal line dilated; a strong, obtuse, polished tubercle on the side. Scutellum triangular, closely and neatly punctured. Elytra : anterior half shining, grossly and very rugosely punctured ; humeri prominent ; lateral mar- gins parallel to the rounding of the tip; posterior half opaque, minutely rugose; dorsal surface flattened, sides gradually depressed. Beneath black, shining, closely and neatly punctured. Length 9 lines. This and the following species were found by Mr. Ridings close to- gether, under the bark of the same tree ; it may be possible, there- fore, that they are sexes of the same species, but they differ so much in the color and sculpture of the elytra that it would be unsafe, at pre- sent, to describe them under the same name. Anthophylax? venustus n. sp. Body black, coarsely punctured ; elytra rufous with black markings. Head black, coarsely punctured, deeply impressed between the an- tennae ; palpi rufous; mandibles rufous on the middle; antennae nearly the length of the body ; third and fourth joints equal, each of the fol- lowing joints as long as the third and fourth combined, basal joints shin- ing. Thorax black, coarsely punctured, surface uneven ; a deep dilated central line and deep transverse lines near the anterior and basal mar- gins; lateral margins nearly straight, with a strong obtuse tubercle. Scutellum triangular, closely punctured. Elytra rufous, densely vestate, coarsely punctured ; humeri prominent, closely and minutely punctured ; a circular black mark on the base, extending half way between the scutel and humeri ; a small oblong black dot near the suture about one- sixth from the tip. Beneath minutely punctured; head, thorax and legs black ; abdominal segments rufous. Length 7 lines. Leptura nigro-lineata n. sp. Body black, clothed with golden pubescence; elytra dark yellow, suture and lateral margins black. Head black, coarsely and very closely punctured ; deep central line becoming obsolete on the disk; suddenly constricted back of the eyes; mandibles rufous, tinged with black; palpi piceous; antennae three- fifths the length of the body; basal joints black, third, fourth and fifth fulvous, tinged with dark brown, remaining joints dark brown, clothed 384 [May with golden pubescence. Thorax black, widest on the posterior half, deeply and closely punctured ; central line dilated, deeply impressed ; anterior margin elevated; sides rounded, suddenly constricted at base; scutellum black, neatly punctured. Elytra dark yellow, closely punc- tured; a narrow black line commencing on the humerus, widening and becoming confluent with the margin at the basal third and extending round the tip ; suture black ; two elevated longitudinal lines between the humerus and scutel, obsolete on the posterior fourth. Beneath black, with silvery pubescence; tibiae and tarsi fulvous. Length 7 lines. Leptura proptnqua n. sp. Body black ; elytra pale yellow, with black lateral markings. 9 . Head black, closely punctured, clothed with a golden pubescence; labrum and clypeus deeply and irregularly punctured; central line dis- tinct, depressed between and back of the antennae; suddenly constricted at the base and forming a neck; antennae black, second joint longer than the third, the fourth and following joints annulated at base; man- dibles rufous on the middle; palpi black. Thorax black, densely punc- tured, thickly clothed with pubescence; anterior margin slightly ele- vated, regularly narrowed from the base to the apex; central line not deeply impressed ; posterior angles divei'gent, deeply excavated across the base and suddenly widening at the centre, forming a deep fovea; basal line bisinuate. Scutellum triangular, densely pubescent. Elytra pale yellow, densely punctured, thickly clothed with prostrate pube- scence ; humeri prominent ; two elevated longitudinal lines between the humeri and scutel. becoming obsolete on the posterior third; suture and epipleurae dark brown, base tipped with black; a small oblong black spot immediately back of the humeri near the lateral margin ; a larger spot on the lateral middle, extending from the margin to one- third of the suture; tips black, obliquely truncate, lateral point form- ing an obtuse spine. Beneath black, closely and minutely punctured, thickly clothed with golden pubescence. Length 9 7?, % bl lines. The % differs from the 9 by the elytra being darker colored and the antennae entirely black. 1865.] 385 Descriptions of some new species of MUTILLA, from California. BY E. T. CRESSON. (Communicated May Sth, 1865.) Genus MUTILLA. Linn. 1 . Mutilla Sackenii. n. sp. Deep black; head, thorax and abdomen above with very long, dense, erect, whitish pubescence. Female. — Deep black, with large coarse punctures ; head not wider than the thorax, clothed above the antennae with long, dense, erect, whitish pubescence, rest of the head with deep black pubescence; eyes small, round, entire and convex ; antennas black, the flagelluui serice- ous. Thorax ovate, abrupt on the sides and behind, the upper surface densely clothed with a very long, erect, somewhat radiating, whitish pubescence ; the black upper surface of the thorax is concealed by a short, dense, appressed, whitish pubescence ; sides of the thorax and beneath clothed with deep black pubescence, which is exceedingly long and fringe-like on the ridge between the two lateral excavations and immediately opposite the intermediate legs. Legs deep black, with long black pubescence, very long on the femora. Abdomen ovate, the dorsal surface, except the extreme base, clothed like the thorax, with a very long, somewhat radiating whitish pubescence, which extends be- neath on the lateral apical margins of the segments; the node or small basal segment is rather small, deeply rugose and clothed with long black pubescence. Length 5i — 6£ lines. Ilab.— California. (Coll. Ent. Soc. Philad.) Four specimens. This remarkable species may be at once recognized by the deep black color and the exceedingly long, erect, whitish pube- scence which clothe the upper surface of the head, thorax and abdomen, giving it a brush-like appearance. The smallest specimen has the whitish pubescence much shorter than the larger ones, as if the very long pubescence had been cropped off". It gives me much pleasure to dedicate this curious species to my friend Baron R. Osten Sacken, to whom the Society is indebted for this and many other valuable species of Hymenoptera. 2. Mutilla magna, n. pp. Large, black: head, thorax above and the abdomen except base, clothed with long ochraceous-yellow pubescence; metathorax, extreme base of abdomen and the tibia; and tarsi, with black pubescence. Female. — Deep black, coarsely punctured ; head not wider than the 386 [June thorax, densely clothed with a long, ochraceous-yeJJow pubescence, rather thin on the cheeks ; eyes small, round, entire and convex ; an- tenna; black, the scape with ochraceous-yellow pubescence, the flagel- lum sericeous. Thorax ovate, abrupt on the sides and behind; the upper surface, except of the metathorax, clothed with a long, dense, coarse, ochraceous-yellow pubescence, which also fringes the ridge, be- tween the two lateral excavations; metathorax above clothed with long, dense, black pubescence. Legs black ; the coxae beneath, the femora and base of tibiae, clothed with a long ochraceous-yellow pubescence ; rest of the tibiae and the tarsi with black pubescence. Abdomen large, ovate, clothed with a long, dense, coarse, ochraceous-yellow pubescence; the node and the extreme base of the large basal segment clothed with black pubescence ; on the venter the pubescence is not so dense. Length 11 lines. Hal, — Cape St. Lucas, Lower California. One specimen. Mr. H. Dike. (Coll. Ent. Soc. Philad.) 3. Mutilla aureola, n. sp. Black; head, thorax and abdomen above, clothed with golden-yellow pube- scence; head large, quadrate, wider than the thorax ; legs black. Female. — Black, coarsely punctured; head large, quadrate, wider than the thorax, clothed above the antennae with a dense, deep golden- yellow pubescence ; on the rest of the head the pubescence is black ; eyes small, round, entire, convex and polished; mandibles black, also polished; antennae piceous-brown, the scape with black pubescence, the flagellum tinged with rufous, sericeous. Thorax very short and broad, somewhat strangulated behind the middle, abrupt on the sides and be- hind, the upper surface densely clothed with a deep golden-yellow pu- bescence ; metathorax abruptly truncate behind, and, as well as the sides of the thorax, sparsely clothed with black pubescence. Legs black, with long, scattered, black pubescence. Abdomen ovate, densely clothed, except base, with long, appressed, deep golden-yellow pubescence; the node, the base of the large basal segment above, and the whole of this segment beneath, except its apical margin, clothed with black pube- scence ; above, the black on the large basal segment slightly indents the yellow on the basal middle; the node is small, circular at tip and flattened above at base ; all the ventral segments have an apical fringe of dense golden-yellow pubescence. Length 62 lines. Hob.— California. Mr. H. Ulke. (Coll. Ent. Soc. Philad.) One specimen. Allied to M. California Radochkovsky, but differs by the large quadrate head and the shorter thorax. < 1865.] 387 4. Mutilla Ulkei, n. sp. Black, with a silvery pile, very dense on sides of thorax, disk of metathorax and of abdomen, and on apical segments; metathorax behind, posterior tibise and tarsi, and the abdomen, ferruginous: head large. Female. — Head large, broader than the thorax, black, densely and coarsely punctured, with a very fine, appressed. silvery pile, glittering in certain lights, and a sparse, erect, black pubescence; on the clypeus the pubescence is long, dense, and tinged with reddish ; eyes small, rounded, entire and convex; mandibles black, red at base; antennae piceous, the flagellum sericeous, the scape clothed with a silvery pube- scence. Thorax broad and truncate in front, narrowed behind, covered with dense large punctures, and clothed with a sparse, erect, black pu- bescence; disk of the metathorax rounded off, with a central patch of silvery-cinereous pubescence, the posterior face flattened and strongly tinged with reddish ; sides of the thorax with a very dense, fine, ap- pressed, silvery-cinereous pile, especially in the excavations. Legs piceous black, with a long, thin, cinereous pubescence; posterior tibiae and tarsi rufous, the former with a double row of long blackish spines ; tips of the tarsal joints spinose and blackish. Abdomen ovate, ferru- ginous, densely and coarsely punctured, the large basal segment tinged with honey-yellow, especially above ; the whole abdomen has, above, a sparse, rather long, erect, blackish pubescence; beneath, the pubescence is cinereous and very dense on the apical segments ; above, the apical margin of the small basal segment, a subobsolete patch on the basal middle of the large basal segment, extending narrowly to the apex, and a patch on the middle of the remaining segments, which extends along the apical margins of the segments, all of silvery-cinereous pubescence ; the node moderate, of nearly equal width, much depressed, tinged witb fuscous, and with a rather large, obtuse tubercle on each side at base. Length 5 J lines. Hab. — Cape St. Lucas, Lower California. .Mr. H. Like. (Coll. Ent. Soc. Philad.) One specimen. I take pleasure in naming this pretty and very dis- tinct species after my kind friend Mr. Henry Like, from whom T have received much assistance in my entomological studies. 5. Mutilla connectens, n. sp. Obscure ferruginous; head and abdomen densely clothed with golden-serice- ous pubescence ; head large, broader than the thorax : abdomen with two large fuscous spots, connected by a narrow line. Female. — Ferruginous or fusco-ferruginous, closely and rather finely punctured; head large, quadrate, wider than the thorax, clothed with a short, dense, golden-sericeous pubescence ; eyes small, round, entire 388 [June and convex; apical half of mandibles black; antennae ferruginous, dusky towards the apex. Thorax short, subquadrate, broad and slightly rounded in front, somewhat strangulated about the middle, and abrupt and truncate behind, the lateral margins serrate ; upper surface blackish, with fuscous pubescence; a patch on each side of the metathorax above, as well as most of its posterior face, with a short golden-sericeous pube- scence ; the lateral excavation very large, rather deep, smooth and po- lished. Legs ferruginous, with yellowish pubescence. Abdomen ovate, broad at base, rather densely clothed with short, appressed, golden-se- riceous pubescence, paler on the apical segments; on the basal middle of the second segment above, a large rounded fuscous spot, extending a short distance on the apical margin of the first segment, and on the apical middle of the second segment another large dark fuscous spot, rather transverse, and connected with the basal spot by a short, narrow, fuscous line down the middle of the segment, both spots are clothed with fuscous pubescence, that on the apical spot the darkest; apical segments above and beneath densely clothed with golden-sericeous pu- bescence. Length -i* — 5 lines. Hub. — Cape St. Lucas, Lower California. Two specimens. Mr. H. Ulke. (Coll. Ent. Soc. Philad.) 6. Mutilla castanea, n. sp. Dark chestnut-brown, shining: legs and antennae fulvo-testaceous : wings yellowish-hyaline: three submarginal cells. Male. — Uniform dark chestnut-brown, densely and finely punctured, shining, clothed with a thin palish pubescence ; head slightly wider than the thorax, the eyes very large and prominent, entire ; ocelli also very large and prominent, enclosed by a black spot ; face much de- pressed beneath the antenna} ; upper surface of the mandibles broad and concave, outer surface rather densely clothed with short yellowish pubescence; palpi pale luteous ; antennae longer than the head and thorax, fulvo-testaceous, and when viewed sideways they have a scol- loped appearance, the joints beneath being contracted at their sutures. Thorax broad and truncate in front; prothorax closely punctured, de- pressed above and somewhat prominent on each side; mesothorax sub- convex, with large, deep, sparse punctures; on each side over the teguhe a deeply impressed longitudinal line ; scutellum large, with large scat- tered punctures; pleura densely punctured; metathorax quadrate, with scattered punctures, shining, abrupt on the sides and behind, the pos- terior face concave; on the dorsal middle two longitudinal approxi- mated carinae, confluent behind; tegulae smooth and polished, chestnut- brown. Wings pale yellowish-hyaline; nervures fuscous, stigma rather 1865.] 389 large ; marginal cell short, obliquely truncate at tip ; three distinct submarginal cells, the first long and narrow, nearly as long as the stigma and marginal cell taken together; the second longitudinally subtrian- gular, much narrowed towards the base of the wing, and continued be- neath the first submarginal to near its base, receiving the first recurrent nervure beyond the middle; third submarginal very short, narrow, transversely quadrate, receiving the second recurrent nervure at the apex. Legs fulvo-testaceous, clothed with pale yellowish pubescence, quite dense on the tibiae and tarsi. Abdomen elongate, sparsely punc- tured, shining, the puncture becoming finer and less distinct towards the apex, the pubescence on the basal segments short and thin, longer and thicker on the apical segments ; first segment large and much swollen, with a short peduncle, the segment nearly as broad as the se- cond, the apical margin constricted; last ventral segment with a long, acute, recurved spine. Length 6 lines; expanse of wings 10$ lines. Hub. — Cape St. Lucas, Lower California. Mr. H. Ulke. (Coll. Ent. Soc. Philad.) One specimen. This may be distinguished by the uniform dark chestnut-brown color, the elongate abdomen, and the singular neuration of the wings. 7. Mutilla unicolor, n. sp. Pale honey-yellow, with bright yellow pubescence : metathorax, legs and base of abdomen with whitish pubescence; wings yellowish-hyaline, varied with pale fuscous: two submarginal cells; abdomen elongate, yellowish at tip. Male. — Uniform pale honey -yellow; head rather large, polished, with fiue scattered punctures, and long, thin, yellowish hairs; eyes very large and prominent, slightly emarginate behind; ocelli also large; face much depressed beneath the antennae; tips of mandibles black; antennas not quite as long as the head and thorax, luteous-yellow, the flagellum opaque. Thorax densely and deeply punctured, clothed with a long, thin, yellowish pubescence; mesothorax with four longitudinal, im- pressed lines, the lateral one abbreviated before; metathorax rounded above, rather abrupt on the sides and behind, coarsely reticulated, and clothed with a long, thin, whitish pubescence. Wings large, yellowish- hyaline, slightly varied with pale fuscous, the largest and darkest mark being on the posterior margin beneath the stigma; nervures yellowish, stigma fulvous ; marginal cell moderately long, the lower nervure gra- dually curved to the apex which is somewhat pointed; two submarginal cells, the first narrow and elongate, the second rather large and sub- quadrate, receiving the first recurrent nervure before the middle, the basal nervure angular. Legs color of the body, tibiae and tarsi paler, 390 [June clothed with whitish pubescence. Abdomen elongate-ovate, petiolate. smooth and polished, pointed at tip, clothed with bright yellow pube- scence, rather sparse on the second segment and dense and rather lon»- on the apical segments, which are tinged with yellow; the first or petiole segment elongate, slender at base and dilated towards the tip ; the pu- bescence on the two basal segments whitish. Length 5$ — 7 lines; ex- panse of wings 8 i — 11 lines. Hob. — California. Baron R. Osten Sacken. (Coll. Ent. Soc. Philad. ) Two specimens. This is closely allied to a species from Colorado Territory, which I shall shortly describe under the name of M. concolor. and which differs from this species by the darker color, by the hyaline wings, and by the pubescence being more sparse and entirely whitish. The pubescence of the present species is of a beautiful golden-yellow, except on the metathorax, legs and base of the abdomen, where it is whitish. Notes upon PAPILIO ASTERIAS and SATURNIA PROMETHEA hermaphrodites. BY WM. II. EDWARDS. (Communicated May 8, 1865.) The Asterias is in my collection and was captured by Mr. Julius Meyer of Brooklyn, L. I., two or three years since. It is a fine instance of a perfect hermaphrodite. The right wings are both male, the left wings both female, distinctly marked upon both surfaces with no suffusion of color. The size is that of the largest specimens of Asterias. The Saturn ia Promethea is in the collection of Mrs. Brid»-hani of New York, and is a curious instance of an imperfect hermaphrodite. The left antenna and left primary are male ; the right antenna and left secondary are female ; the right primary is also female, but the right secondary is something between the two, neither male nor female. The color of the upper surface is nearly the same as the under surface of the male. On the under side the color and markings of the left primary are male, but the other three wings are female. The color and markings of the male Promethea are quite different from those of the female, and on this hermaphrodite the confusion of the sexes is conspicuous. It is a bred specimen. The body had been viscerated, so that it is impossible to determine its sex. 1865.] 301 Compiled descriptions of North American STAPHYLINIDJE. BY JAMES H B. BLAND. (Communicated May 8th, 1865.) The Papers which I propose to publish under the above title, will be composed merely of compilations of descriptions of North American Staphylinidx enumerated in Dr. LeConte's "List of the Coleoptera of North America" published in 1863 by the Smithsonian Institution. The original descriptions are scattered through various works, some of which are difficult of access, and most of them published in a foreign language. The object is, therefore, to place before the student the descriptions in our own language, wherein he may more readily deter- mine the species, and as it may be a long time before a monograph of our species of this large Family will be published, it is hoped that the publication of these papers will prove of some assistance to the student of Coleoptera. The characters of the Subfamilies, Tribes, Groups, and Genera, are taken from Dr. LeConte's excellent Classification of Coleoptera, and the authority for the descriptions is given at the end of each. Sub-Fam. 1— STAPH YLINIDJE. Anterior coxje prominent; anterior coxal cavities open behind. Tribe 1. — Aleocharini. Prothoracic stigmata visible; antennae, inserted upon the front, at the internal margin of the ej/es. Group I. — Aleocharae.- — Internal lobe of the maxillse membranous internally, and ciliate: eyes not prominent; third joint of maxillary jialpi moderately elongated. A. — Anterior tarsi i-jointed ; middle and hind tarsi 5-jointed. * Head constricted behind into a narrow neck: first joint of hind tarsi elongated : thorax cordate, usually deeply channelled. Genus 1— FALAGRIA. Mann. 1. Falagria dissecta. Erich. Falagria dissecta, Erich. Staph, p. 49. 2. Nigro-piceous ; thorax subcordate, scutellum deeply channelled ; ely- tra transverse, finely punctured. Length 1 Hue. Hub. — Pennsylvania. Nigro-piceous, shining, clothed with short, fine, greyish subsericeous pubescence. Antennae as long as the head and thorax, thickened, nigro- 392 [June piceous. Palpi piceous. Head as broad as the thorax, blackish, very finely punctured, front rather convex. Thorax a little shorter than broad, strongly rounded before the middle, slightly convex, finely punc- tured, deeply sulcate, the apex channelled; scutellum bicarinated, chan- nelled between the carinas. Elytra a little shorter than broad and slightly longer than the thorax, closely and finely punctured. Abdo- men finely punctured. Legs piceous, tarsi testaceous or rufo-testa- ceous. — Erichson . 2. Falagria venustula, Erich. Falagria venustula, Erich. Staph, p. 55. 20. Piceous, punctured ; thorax suborbicular, reddish ; elytra fuscous ; humeri, base of abdomen and legs, testaceous. Length | line. Hab. — Pennsylvania. Clothed with fine pubescence. Antennas as long as the head and thorax, slender, slightly pilose, testaceous, fuscous before the apex. Palpi fuscous. Head as broad as the thorax, orbicular, the front slightly convex, very closely and finely punctured, black, scarcely shining. Thorax a little narrower than the elytra, rather shorter than broad, the sides rounded anteriorly, slightly narrowed towards the base, moder- ately convex, very closely and finely punctured, fusco-rufescens, scarcely shining; scutellum even, fuscous. Elytra a little longer than the tho- rax, very closely and finely punctured, humeral angles rufo-testaceous. Abdomen above sparsely punctured, the first two segments pale yellow- ish-testaceous ; remaining segments black, shining. Pectus black. Legs yellow. — Erichson . 3. Falagria bilobata. Say. Aleochara bilobata. Say, Trans. Am. Phil. Soc. vi. N. S. p. 156. Falagria bilobata, Lee, Say's Writings, ii. p. 589. Dark reddish-brown ; thorax subcordate, canaliculate, feet pale. Hab. — Missouri and Indiana. Body very dark reddish-brown, with numerous regular punctures : antennas, two basal joints paler: mouth beneath, excepting the ter- minal joints of the maxillary palpi, pale testaceous: thorax rounded before and narrower behind; very deeply canaliculate; groove abruptly abbreviated on the basal margin : elytra at tip and sides with smaller punctures than the thorax ; suture indented : feet pale testaceous : ter- gum, segments with dilated punctures at base. Length less than three- twentieths of an inch. — Say. ■»» Head not constricted into a narrow neck. a. Joints of hind tarsi equal, or slightly decreasing in length, t Anterior and middle tibiae strongly spinose externally. 1865.] 398 Genus 2.— PHYTOSUS. Curtis. 1. Phytosus opacus, Lee. Phytosus opacus, Lee. Descr. N. Am. Coleoptera, i. p. 28. Linear, depressed, opaque testaceous ; head, thorax and elytra very finely alutaceous, with sparse obsolete punctures and scarcely visible pubescence ; thorax obsoletely channelled ; elytra a little shorter than the thorax ; abdomen finely punctured, antepenultimate segment black- ish. Length .13 inch. Hah. — San Diego, California ; on the shores of the ocean. This species resembles so closely the figure given by Duval of the European P. nigrirentris, that it is scarcely necessary to add anything to the above description, to enable it to be readily recognized. The spines of the anterior tibiae are very small, and not by any means conspicuous. The body beneath is finely and densely punctured, and finely pubescent, and rather darker colored than the upper surface. — Le Conte. •(■f Tibise not spinous. 1. Labial palpi 3-joifated. a. Ligula long, slender, bifid at the extremity: joints of hind tarsi 1 — 4 equal. Genus 3.— HOPLANDKIA. Kraatz. 1. Hoplandria pulchra, Kraatz. Hoplandria pulckra, Kraatz, Linn. Ent. Zeits. xi. p. 6. Nigro-piceous, shining, somewhat pubescent; base of antennae, and the legs, testaceous; thorax, and base of abdomen, rufous; elytra cov- ered with fine rugulose punctures. Length \\ line. Hah. — Louisiana ; Georgia. Nigro-piceous, shining. Antennas scarcely as long as the head and thorax, fuscous, the base and apex testaceous, the first three joints slen- der, subequal, the 4 — 6 joints a little longer than broad, the 8 — 10 joints slightly transverse, the two penultimate joints of equal length. Head deflexed, rounded, narrower than the thorax, nigro-piceous, shin- ing, sparsely and very finely punctured. Thorax a little narrower than the elytra, more than twice broader than long; the sides and base slightly rounded and margined ; apex truncate, anterior angles obtuse, the posterior ones rounded ; upper surface densely and finely punctured, sanguineous. Elytra one-half longer than the thorax, nigro-piceous, the humeri occasionally reddish, with dense, strong, rugulose punctures. Abdomen rufous, the apex black, slightly narrowed towards the tips ; upper surface smooth, the segments with scattered punctures. Legs testaceous. Male. — Exterior apical angles of the elytra with a rather large tooth. 394 [J UNE acuminate ; second abdominal segment sometimes with a short, acute, lateral spine, the sixth segment carinated. — Kraatz. 2. Hoplandria ochracea. Kraatz. Hoplandria ochracea, Kraatz, Linn.. Ent. Zeitz. xi, p. 6. ( )chraceous, somewhat shining, sparsely pubescent; head, the elytra about the scutellum, their apical angles, and the fifth segment of abdo- men, fuscous; thorax transverse, deeply punctured, the basal middle scarcely margined ; abdomen above densely and finely punctured. — Length 1 — 1] line. ffab. — Georgia. Sparsely pubescent. Antennae a little longer than the head and thorax, fuscous, paler at base ; second joint a little longer than the third, obconic; fourth joint scarcely broader than the third ; fifth dis- tinctly thicker, transverse; 6 — 1 joints a little broader ; the two penul- timate joints of nearly equal length, ovate, acuminate. Head deflexed, narrower than the thorax, scarcely constricted at base, nigro-fuscous, shining, sparsely and finely punctured. Thorax nearly twice shorter than broad, narrower anteriorly ; the sides slightly, and the base strongly, rounded ; apex truncate ; all the angles obtuse, the posterior ones somewhat rounded, and the anterior ones deflexed; basal middle very finely margined ; densely and finely punctured, rufo-testaceous. Elytra a little lunger than the thorax, densely and finely punctured, rufo-testaceous, the exterior apical angles and about the scutellum, fus- cous. Abdomen slightly attenuated towards the apex, densely and finely punctured above ; the fifth segment always, and the anterior mar- gins of the fourth and sixth segments occasionally, nigro-fuscous. Legs testaceous. Male. — Interior apical angles of the elytra with an elevated tubercle ; sixth segment distinctly carinated ; third segment occasionally with two minute carinas on the middle. — Kraatz. b. Ligula short, bifid: joints of hind tarsi 1 — 4 decreasing in length. Genus 4.— HOMALOTA. Mann. 1. Homalota plana, Gyll. Aleochara plana, Gyll. Ins. Suee. ii, p. 402. 24. Sahib. Ins. Fenn. i. p. 367. 40. Hovialota plana, Erich. Staph, p. 93. 23. Linear, depressed, black; antennas piceous ; legs and anus testaceous; thorax in front transversely subquadrate, channelled ; elytra half again as long as the thorax, brown ; abdomen above sparsely and finely punc- tured. Length 1] line. [Hab. — United States and Europe.] Black, rather shining, finely and thinly pubescent. Antennas half 1865.] 395 again as long as the head, slightly thickened towards the apex, joints 5 — 10 subtransverse, the last shorter, ovate, obtusely acuminated, slightly hairy, sometimes pale, sometimes deep rufo-piceous. Palpi rufo-piceous. Head rather narrower than the thorax, suborbicular, rather constricted at base, depressed, broadly and rather deeply chan- nelled, densely and strongly punctured, apex smooth, mouth piceous. Thorax slightly narrower than the elytra, nearly one-half shorter than broad, the sides slightly rounded before the middle, somewhat narrowed towards the base, depressed, very finely and closely punctured, broadly channelled, the channel deep at base and obsolete at tip. Elytra half again as long as the thorax, depressed, densely and finely punctured, sometimes fusco-, sometimes ruf'o- testaceous. Abdomen shining, the three anterior segments margined behind with piceous, the disk sparsely and finely punctured ; remaining segments smooth, the apex testaceous. Legs testaceous, tibiae and tarsi paler. — Erichson. 2. Homalota trimaculata, Erich. Homalota trimaculata, Erich. Staph, p. 105. 46. Black; base and apex of antennae, legs and elytra, testaceous, the latter with three fuscous spots ; thorax foveolated at base, sides pice- ous ; base of abdomen rufo-piceous, the upper surface strongly punc- tured. Length \\ line. Hah. — Pennsylvania. Body black, shining, covered with a fine yellowish pubescence. An- tennae as long as the head and thorax, somewhat thickened, joints 5 — 10 transverse, the two penultimate joints nearly equal, short-ovate, apex acuminate ; nigro-fuscous, the base and apex testaceous. Head nar- rower than the thorax, sparsely punctured ; mouth testaceous. Thorax narrower than the elytra, more than one-half broader than long ; base strongly, sides slightly rounded, apex truncate, rather convex, densely and deeply punctured, the face transversely impressed, the sides pice- ous. Elytra half-again as long as the thorax, strongly and densely punctured, pale testaceous, with three rounded fuscous spots, the first placed around the scutelluin, the other two in the exterior angle on either side. Abdomen with the first four segments rufo-piceous, obscure at base, remaining segments nigro-piceous. the upper surface densely and strongly punctured. Legs testaceous. — Erichson. :i. Homalota aemula, Erich. Homalota aemula, Erich. Staph, p. 102. 42. Black, shining; base of antennae, elytra and legs, testaceous; thorax sululepressed. base slighily foveolated,