TEXAN HYMENOPTERA. 157 



the variaties of instabilis, Cress., but is much smaller and with the an- 

 tennae and legs differently colored. 



Ichneumon rubicumlus. 



Ichneumon rubicundus, Cress. Proc. Ent. Soc. Phil, iii., p. 176. 

 Three % 9 specimens. (Belfrage.) 



Trogus obsidianator. 



Trogus obsidianator, Brulle, Hym., p. 299. 



One £ specimen. (Boll.) 



Cryptus laticeps, n. sp. 



% . — Black; head broader than thorax; face hroad, with a cuneiform mark 

 on each side, two dots on the middle, clypeus, mandibles except tips, dot be- 

 neath eyes, palpi, scape beneath, anterior margin of prothorax, tegulae, short 

 line beneath, and the scutellum, all white; metathorax rugulose, with sharply 

 defined carinae; wings hyaline, stigma black, areolet rather large, pentagonal ; 

 legs, including coxse, pale ferruginous, anterior coxae and trochanters pale, tips 

 of posterior femora, their tibiae and tarsi blackish; abdomen very slender at 

 base, apical segment with a white spot at tip above, and preceding segment 

 with a narrow apical white line. Length .35 inch. 



One specimen. (Coll. G. W. Belfrage.) 



Cryptus americanus. 



Cryptus americanus, Cress. Proc. Ent. Soc. PhiL iii., p. 297. 



One 9 specimen. (Heiligbrodt.) 



Cryptus exulans, n. sp. 



%. — Black, subopaque, densely punctured, covered with a short thin pale 

 pubescence; head small, eyes prominent, apical margin of clypeus deeply con- 

 stricted, shining; antenna? long, joints 9 — 12 white above; thorax less densely 

 punctured than head, somewhat shining; scutellum convex, shining; meta- 

 thorax large, rugose, posterior face obliquely flattened, a transverse subarcuate 

 carina near base and a short oblique one on each side of posterior face; wings 

 uniformly smoky-hyaline, nervures black, areolet broad 5-angular, side nerv- 

 ures parallel; legs black, pale sericeous, anterior tibiae more or less pale, 

 second and following joints of posterior tarsi white; abdomen polished, rufo- 

 castaneous, first segment long, slender, arcuated, apex slightly dilated and con- 

 vex above, the stigmata not prominent, third and following segments with a 

 short thin appressed pale pubescence. Length .50 inch. 



One specimen from Comal Co. Besembles americanus, Cress. 



Cryptus extrematis. 



Cryptus extrematis, Cress. Proc. Ent. Soc. Phil, iii., p. 304. 

 One 9 specimen. (Belfrage.) 



Cryptus nuncius. 



Cryptus nuncius, Say, Bost. Journ. Nat. Hist, i., p. 237. 

 Several % 9 specimens. (Belfrage ; Boll.) Mr. Belfrage hatched, 

 in October, 120 £ 9 specimens of this species from a pupa of Telea 

 polyphemus. 



