Genus Argynms 
Early Stages. —Not ascertained. 
This species occurs in southern Utah and Arizona. 
(26) Argynnis platina, Skinner, Plate XVIII, Fig. 7, <$ 
(Skinner’s Fritillary). 
Butterfly y $. —The original description of this species, con¬ 
tained in the “Canadian Entomologist,” vol. xxix, p. 154, is as 
follows: 
“ <3.— 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. 11, 
$ (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-buff. 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 
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