i,o.2334. NORTH AMERICAN ICHNEUMON-FLIES— CU8HMAN. 253 



ISCHNOPSIDEA COLOEADENSIS. new species. 



In Berthoumieu's ^ key to the European species runs to nigricollis 

 (Wesmael), but differs in having the abdomen entirely black. From 

 the closely allied truncator (Fabricius) it differs in having the entire 

 thorax, even the scutellum, black; the third tergite transverse; and 

 the antennae white annulate. 



Female. — Length, S mm. ; antennae, 5 mm. 



Head large, seen from above nearly as broad behind eyes as at 

 eyes; temples weakly convex, extending nearly straight backward, 

 and nearly as wide as short diameter of eye; eyes rather small, 

 broadly oval; malar space nearly half as long as eye; eyes sjightly 

 divergent below; vertex slightly, face distinctly, broader than height 

 of eye; clypeus distinctly truncate at apex, with the labrum slightly 

 protruding; cheeks broad, buccate; head strongly punctate, through- 

 out, face densely so; thorax strongly punctate, mesoscutum and 

 scutellum rather sparsel}- so, notauli distinct to about middle of 

 mesoscutum, scutellum margined to middle; propodeum densely 

 punctate-rugulose above, transversely rugose behind, areola penta- 

 gonal, only slightly narrower at apex than at costulae, petiolar area 

 not distinctly defined laterally; petiole subpolished, postpetiole 

 opaque laterally, subpolished and weakly striate medially; other 

 tergites opaque punctate; gastrocoeli nearly meeting in middle. 



Black; antennae with apices of joints pale and a white annulus 

 •on flagellar joints 11-12; mandibles, tegulae, wing bases, and small 

 humeral spot white; legs testaceous, hind tibia and tarsus slightly 

 infuscate, middle and hind tibiae narrowly white at base. 



Type locality. — Colorado. 



Type.— Cat. No. 22850, U.S.N.M. 



Described from two females from the C. F. Baker collection. 



The paratype is about a millimeter shorter than the type, with the 

 •abdomen slightly reddish, but is otherwise much like the type. 



Subfamily Cryptinae. 



Genus ATRACTODES Gravenhorst. 



(ISCHNUS) ATRACTODES AMERICANUS (Ashmead). 



Genus SPILOCEYPTUS Thomson. 



SPILOCRYPTUS PROPODEUM, new species. 



Male. — Length, 5.5 mm.; antennae, 5.5 mm. 



Differs from the male of polycJirosidis Cushman principally as 

 follows: Eyes sinuately emarginate opposite antennae; temples 

 broader and more strongly convex; propodeal carinae weaker, the 

 apical carina obsolete; thorax more coarsely sculptured through- 

 out; mesoscutum with distinct, separated punctures, polished; 



1 Ann. Soc. Ent. France, vol. 65, 1896, p. 389, 



