166 



loLMiNAL New York Ent. Soc. 



[Vol II. 



H. nanus Sfrcckcr* 



1876 — CossHs nanus Strecker, Proc. Acad. Nat. Sci. Phil., p. 151. 



"Expands i^^ inch. Has the appearance of a miniature 

 Cossi/s Iii:;niperda, is gray, of lighter and darker shades and 

 reticulated with black lines which are most noticeable across the 

 disk and on the terminal part of wing. Secondaries uniform gray- 

 ish. Beneath grayish, faintly reticulated. 



Habitat, Colorado." 



Sthenopis. 

 liepialus. 



argenteomaculatus. 

 var. purpurascens. 



Vdr. los. 



var. perdita. 



quadriguttatus. 



thule. 



auratus. 



Family HEPIALIDvE. 



Synopsis of genera. 

 Size largfe; apices of primaries letangular, sub-falcate 

 Size smaller; apices rounded . . . . , 



Genus Sthenopis Packard. 

 1864 — S/henopis Pack.-^rd, Proc. Ent. Soc. Phil., Vol. Ill, p. 390. 

 Synopsis of species. 



C.eneral color silvery smoky gray. 



Two silvery spots near base of discal cell. 



Color smoky gray ..... 



Ground color silver)' purple 

 One silvery spot near base and another sub-apical 

 No silver dots on primaries .... 



General color pale salmon ..... 



General color white ...... 



General color dull lilac, gold tinted .... 



S. argenteomaculatus Harris. 



1841 — Ilepialiis aroenteoinaculalus Harris, Rep. Ins. Mass., p. 295. 



1864 — Slhenopis argentatus Packard, Proc. Ent. Soc. Phil , Vol. Ill, p. 292. 



1885 — Cossns alni Kellicott, Ent. Amer., Vol. I, p. 175. 



var. purpuracens Packard. 



1863 -Gi'i-gopis piDpurasccns Packard, Post. Journ. Nat. Hist., Vol. VII, 

 p. 598. 

 var. los Strecker. 



1893 — //f//rtr/«j /('J- Strecker, Proc. .Acad. Nat. Sci. IMiil., p. 2S2. 



var. perdita Dyar. 



1893 — Stlienopis argenteoniaculalits var. peniila Dvar, Can. Ent., \'o\. XX\', 

 P- 327- 



Sable brown with a silvery tint, with several large dark brown 

 marks bordered by a bright shade ; outer margin dark, broadly so 

 at internal angle, with or without two silvery spots near the base 



* We are indebted to Dr. Strecker for a sketch of the venation of this species. 



