144 THE BUTTERFLIES OF THE WEST COAST 



Argynnis, but yet there are material differences on both sides, 

 which justify the separation of this group from the Argynnids, 

 although many writers include this group with the Argynnids. 

 The species of Brenthis are nearly all of them arctic, or nearly so, 

 in habitat. The sexes are indicated in the same way as the 

 Argynnids. 



146. Brenthis Myrina. 



Plate XVII ; Figures 146, a. 



Fig. 146, Male, Nipegon, Ontario, no date ; D. Bruce. 



a, Male, underside, no data ; from W. H. Edwards. 

 This little butterfly is found in British America, and also in 



Alaska, at St. Michaels. It is very well known, but I have never 

 seen it in flight, though presumably it flies within the territory 

 treated of in this book. 



146a. Brenthis Pales. 



No figure. 

 This is merely a variety of the preceding, and it is a form with 

 which I am unacquainted, and there is no literature in American 

 publications referring to or describing it. 



147. Brenthis Triclaris. 



Plate XVII ; Figures 147, b. 



Fig. 147, Male, Colorado Mountains, no data ; from W. H. 

 Edwards. 



b. Female, underside. Middle Park, Colo. ; from 



Mr. Nash. 

 This species is not yet noted as having been taken within our 

 territory, but it is common in the Rocky Mountains of Colorado, 

 and I know of no reason why it should not be taken on the moun- 

 tains of the West Coast, or of British Columbia. 



148. Brenthis Helena. 



Plate XVII ; Figures 148, a. 



Fig. 148, Male, from Colorado, no data ; received from 

 W. H. Edwards, 

 a, Male, underside, from Colorado, no data; re- 

 ceived from W. H. Edwards. 

 Helena is, like the preceding, from the Rocky Mountains, and 

 it is very likely that it will be found in many of the mountains of 

 the West Coast, in good time. 



