isr)4.] 73 



Descriptions of North American LEPIDOPTEKA, No. 3. 



BY AUG. R. GROTE, 



Curator of Entomology, Buffalo Society Natural Sciences. 



EPIALOIDEA, H-S. 



Gorgopis quadriguttatus. nov. sp. Plate 1, fig. 6, 9 • 



Anterior wings pale greyish, very faintly tinged with pale salmon 

 color, the latter shade more prominent along internal margin, with 

 broad, pale olivaceous-brown bands : the first very oblique, joining the 

 internal margin about two-thirds from the base and approximate to the 

 terminal band, not extending above the median vein, and enclosing, 

 between the forks of the submedian vein, two nearly equal sized silvery 

 white spots ringed with black ; midway between the base of this band 

 and the base of the wing is a similarly colored patch on the internal 

 margin ; two similarly colored patches on the costa, and beyond them a 

 second, broad, inversely oblique, irregular band extending from the costa 

 to vein o, faintly tinged with ochraceous inferiorily. A broad sub-api- 

 cal demi-band ; terminal band very wide, narrowest at apex, similarly 

 colored to the other bands, paler towards internal angle. Posterior 

 wings entirely pale salmon color, greyish on the costa, showing a brown- 

 ish sub-apical patch. Abdomen pale salmon-color; thorax, head and 

 antennae olivaceous, metathorax clothed with long salmon-colored hairs. 

 Under surface of both wings tinged with salmon-color, reflecting the 

 markings of upper surface on anterior wings. 9 Exp. 3| inches. 



Hah. '• Great Slave Lake." Mr. Ross. 



Allied to Gorgopis argenteo-maculatus Harris; the disposition of 

 the median bands on the anterior wings is somewhat different and 

 they are not so largely tinged with ochraceous, the two white spots are 

 much smaller and the apex apparently not so falcate, while the colora- 

 tion of abdomen, metathorax and posterior wings, readily distinguishes 

 the present from Harris' species. 



A small collection of unset Arctic Lepidoptera, which included the 

 preceding species, collected principally by Mr. Robert Kennicott, was 

 kindly submitted to me by Mr. Wm. H. Edwards, and contained, among 

 others, the following species : — 



