Genus Argynnis 



Early Stages. Not ascertained. 



This species occurs in southern Utah and Arizona. 



(26) Argynnis platina, Skinner, Plate XVIII, Fig. 7, $ 

 (Skinner's Fritillary). 



Butterfly, $. The original description of this species, con- 

 tained in the "Canadian Entomologist," vol. xxix, p. 154, is as 

 follows: 



" $ . Expands two and a half inches. Upper side: Rather 

 light tawny or even light buff. Black markings dense and wide, 

 with outer halves of wings looking rather clear or open, with 

 rows of round spots not very large; marginal border light; 

 bases of wings not much obscured. Under side: Superiors have 

 the two subapical silver spots and silver spots on margin well 

 defined; color of inner half of wing rosy. The silver spots on 

 the inferiors are large and well defined, and placed on a very 

 light greenish-gray ground. The intermediate buff band is well 

 defined, comparatively wide, and very light in color. $ . The 

 ground-color on the inferiors below is reddish-brown in the 

 female." 



Early Stages. Unknown. 



This species occurs in Utah and Idaho, and is possibly a vari- 

 etal form of A. coronis, specimens agreeing very nearly with the 

 type figured in the plate being contained in the Edwards col- 

 lection under the name of A. coronis. 



(27) Argynnis coronis, Behr, Plate XI, Fig. 10, $ ; Fig. n, 

 $ (Coronis). 



Butterfly, $ . The wings on the upper side are yellowish- 

 brown, with but little brown obscuring the base. The dark 

 markings are not heavy, but distinct. The fore wings on the 

 under side are buff, with the basal area orange-fulvous. The 

 subapical and submarginal spots are more or less imperfectly 

 silvered. The hind wings are brown, mottled with reddish. 

 The discal area is buff, and the belt is pale yellowish-bufT. All 

 the spots are large and well silvered on these wings. 



? . The female is paler than the male, with the markings on 

 the upper side a little heavier. The wings on the under side are 

 much as in the male sex. Expanse, $ , 2. 10-2.50 inches; $,2.50- 

 3.00 inches. 



Early Stages. The early stages remain to be ascertained. 



This species ranges from southern California northward to the 



117 



