LEPIDOPTERA HETEROCERA. 
337 
Male. Cinereous-blackish, cinereous beneath. Palpi obliquely 
ascending, thickly fringed, rising a little higher than the vertex ; 
third joint very short. Antennae stout, very minutely setulose. 
Fore wings cinereous, acute, with several transverse irregular brown 
lines, which are dilated on the costa; a middle broad irregular 
brown band ; costa and exterior border straight, the latter mode 
rately oblique. Hind wings cinereous. Length of the body 3 lines; 
of the wings 7 lines. 
a. Arctic America. Presented by Sir J. Richardson. 
30. SciAPHILA 1MPR0BANA. 
Mas. Nigricans , subtus cinerea ; alee anticce elongatce , sericece , 
apice subrotundatce , nigricante strigatce et conspersee , plagis 
duabus obliquis nigricantibus ; posticce ceneo tine tee, fimbria 
pallide cinerea inter lineata. 
Male. Blackish cinereous. Abdomen, hind wings and under 
side dark cinereous. Palpi shorter than the breadth of the head ; 
second joint fringed; third elongate-conical, about one-fourth of 
the length of the second. * Antennae very minutely setulose. Wings 
elongate. Fore wings sericeous, slightly rounded at the tips, mi- 
nutely and transversely streaked and speckled with blackish ; two 
blackish oppositely oblique patches; one extending from the disk to 
one-third of the length of tbe interior border, concise on the outer side ; 
the other in the exterior disk, extending towards the interior angle ; 
costa straight; exterior border slightly convex, moderately oblique. 
Hind wings tinged with aeneous; fringe pale cinereous, interlined. 
Length of the body 4 lines ; of the wings 10 lines. 
a. St. Martin’s Falls, Albany River, Hudson’s Bay. Presented by 
Dr. Barnston. 
31. SciAPHILA? AFFLICTANA. 
Mas. Obscure cinerea; alee anticce acutce,nigro transverse stri- 
gatce , fascia media nigricante subobliqua , lituris discalibus 
interioribus nigris. 
Male. Dark cinereous. Palpi porrect; third joint conical, 
less than one-fourth of the length of the second. Abdomen extend- 
ing somewhat beyond the hind wings. Fore wings acute, minutely 
and transversely streaked with black, with a blackish regular slightly 
oblique middle band ; a few small black marks in the disk near the 
F 2 
