NORTH AMERICAN BUTTERFLIES 



113 



271. EREBIA VESAGUS Doub-Hew. 



Four-dotted Butterfly. 

 Differs from E. discoidalis in having a lightish patch beyond end 

 of central cell, and a reddish patch near outer border of fore wing con- 

 taining four black spots without white pupils. Expands 2.00. Habi- 

 tat, British America. 



272. EREBIA ROSSII Curt. 

 Ross' Dusky Butterfly^ 

 Dark brown above, with a double reddish spot near apex, each di- 

 vision of which contains a white-pupiled black dot. Beneath, spots on 

 fore wing repeated, and on hind wing near outside portion is a pale band 

 containing a series of white points, Expands 2.00. Habitat, Arctic 

 America. 



Fig. 3G. 



^^ 



a b 



a, lower side, Neonympha aroolatus. b, same, N. eurytris viola. 



273. EREBIA MANCINUS Doub-Hew. 



North-western Duskey Butterfly'. 

 Size, small, dark brown above, with a triangular patch ofcliestnut 

 near middle of fore wing, without spots. Expands l.oO. Habitat, 

 Alaska and Rocky Mountains in British America. 



274. EREBIA HAYDENII Edw. 



Hayden's Butterfly', 

 Pale slaty brown, without spots or markings. Beneath, paler with 

 a sub-marginal row of white-pupiled, rusty-ringed, brown spots on hind 

 wings, Fig. 37, e, and three or four points, also rusty-ringed on fore 

 pair. Expands 1. GO, Habitat, Montana. Occurs in August. 



