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 



