Genus Argynnis 



secondaries being heavily obscured by blackish, so as to conceal 

 the markings. Both wings have moderately heavy black mar- 

 ginal borders. The other markings are as in A. eurynome. On 

 the under side the fore wings are buff, laved with reddish at the 

 base. The hind wings are pale buff, with the basal and discal 

 areas mottled with green. The marginal belt is clear buff. In 

 some specimens the spots on the under side are not silvered; in 

 others they are well silvered. 



? . The female on the upper side is very pale buff, slightly 

 laved with fulvous on the outer margin of both wings. All the 

 markings are heavy; the margins of both wings are solid black, 

 the spots within the lunules being pale and almost white. The 

 fore wings at the base and the inner half of the hind wings are 

 almost solid black. On the under side the wings are very much 

 as in the male, and the same variation as to the silvering of the 

 spots is found. Expanse, <$ , i. 80 inch; ?, 1.90 inch. 



Early Stages. Unknown. 



The types of this genus came from Sitka, in Alaska. It may 

 be an extreme boreal variation of A. eurynome. 



(45) Argynnis eurynome, Edwards, Plate XII, Fig. 7, $ ; 

 Plate XIV, Fig. 14, ?; Fig. 15, $. under side (Eurynome). 



Butterfly, $ . The wings on the upper side are bright 

 yellowish-fulvous, but little obscured at the base. The outer 

 margins are edged by two fine lines which are occasionally con- 

 fluent. The under side of the fore wings is pale buff, laved with 

 cinnamon-brown at the base and along the nervules; the spots 

 on the margin and in the apical area are well silvered. The 

 hind wings on the under side are buff, with the basal and discal 

 areas mottled with pale brown or pale olive-green. The marginal 

 belt is broad and clear buff; all the spots are well silvered. 



?. The female is like the male, but paler, with the dark 

 markings, especially those of the margin, heavier. The marginal 

 spots inclosed by the lunules are much paler than the ground- 

 color, and in many specimens almost white. On the under side 

 the wings in this sex are like those of the male, but the fore 

 wings are more heavily laved with cinnamon-brown at the base. 

 Expanse, $, 1.70-2.00 inches; ?, 2.00 inches. 



Early Stages. Mr. Edwards, in "The Butterflies of North 

 America," vol. ii, has given us a beautiful figure of the egg of 

 this species. Of the other stages we have no knowledge. 



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