NORTH AMERICAN BUTTERFLIES. 57 



basal portion of the wing, and on the latter portion, there are ten instead 

 of seven, with a pinkish tinge to the buff interspace. Expands, 2.10 to 

 2.40. Habitat, Cahfornia and Nevada. 



120. ARGYNNIS MONTICOLA Beiir. 



Mountain Buff-wing. 



Similar to A. zerene, but differs in having rather less cinnamon 

 red on base of fore wing below, in being rather more rusty red on hind 

 wings, and in having the clear interspaces strongly tinged with pinkish. 

 Buff spottings as in zerene. Fig. 2o, e. Habitat, Mountains of Califor- 

 nia, Nevada, Montana, and Summit, British America. Occurs in June 

 and July. 



119a. Argynnis monticola purpurascens H. Edw. Like the 

 type, but differs in being smaller, in having heavier markings above, 

 and with a decided purplish overwashing on the entire lower surface. 



121. ARGYNNIS RHODOPE Edw. 



Wood Silver-wing. 



About the size of A. monticola but more heavily marked above, 

 especially on hind wings. Beneath, the fore wings are deep, rusty red 

 basally, and the hind wings are heavily washed with the same color, with 

 little or no pale interspace, and this is never wholly clear. Spottings, 

 smaller, especially the outer row of crescents. Fig. 24, a, and all are sil- 

 vered, excepting the second row, and in the female, these being buff. 

 Expands, 2.20 to 2.40. Habitat, British Columbia. 



122. ARGYNNIS BEHRENSH Edw. 

 Beiiren's Silver-wing. 

 About the same size as A. hesperis, paler, but the markings above 

 are similar, while the spottings are of the same number ; form, and color 

 of fore wings below, also similar, but the sjMjts arc silvered, and the 

 ground color of hind wings is dark rusty red, as in rhodope. but there 

 is a more or less clear interspace. Fig. 2.">, b. Expands, 2.20 to 2.40. 

 Habitat, Mendocino, California. 



123. ARGYNNIS HALCYONE Edw. 



Velie's Butterfly. 

 A little larger than A. behrensii, with about the same ground col- 

 or, but the markings above are heavier, the under surface of the fore 

 wing is paler, while the rusty of the hind wing, is about as deep in shade; 



