LEPIDOPTERA OF LAKE SUPERIOR. 389 



Olive-drab ; head very small, and without a prominent crest ; an- 

 tennas of the males transversely biciliated beneath. Forewings 

 scalloped, with a transverse sinuous pale line near the base ; a 

 whitish comma-shaped stigma on a broad undulated dark olive-colored 

 central band, and two transverse undulated lines towards the tip ; 

 under side purple in the middle of the disk. Hindwings purple in 

 the middle and at base, with a transverse black spot, and an abbre- 

 viated dusky blue band near the anal angle. Body very robust, and 

 with the legs immaculate. 



One of the largest species of the genus. A single male was taken 

 on the northern shore of Lake Superior in the summer of 1848, and 

 a fine female was captured in Cambridge, Mass., on the 20th of 

 July, 1849, which have afforded the means for a more full and cor- 

 rect description than has heretofore been given. This species 

 appears to be rare, and has not before been figured. It is the 

 representative of the European &'. Tilice and Quercus. 



HEPIOLUS ARGENTEOMACULATUS H. 



PI. VII., fig. 6. 



Hepialus argenteomaculatus Harris, Catalogue in Hitchcock's 

 Report, 1st ed. p. 591 (1833). The same, 2d ed. p. 592 (1835). 

 Report on Insects injurious to Vegetation, p. 295 (1841). 

 Gosse, Canadian Naturalist, p. 248 (1840). 



Fusco-ochraceus vel cinereo-brunneus ; alis primoribus pallidis , 

 ochraceo vel brunneo fasciatis, guttisque duabus prope basin argen- 

 teis ; secundariis rubro-vel cinereo-ochraceis, immaculatis. 



Alar. exp. 2|, 3| unc. 



Only two specimens of this fine insect have fallen under my obser- 

 vation. They differ much in size and color. The smallest, appa- 

 rently a male, was taken in Cambridge, Mass., many years ago. 

 When at rest, the wings are very much deflexed, and form a steep 

 roof over the back. The body is light brown ; the forewings are 

 of a very pale ashen brown color, variegated with darker clouds and 



