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. 



