"♂.--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 varietal form of _A. coronis_, specimens agreeing very nearly with the type figured in the plate being contained in the Edwards collection 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 southern part of British Columbia, and is found as far east as Utah. (28) =Argynnis snyderi=, Skinner, Plate XVIII, Fig. 6, ♂ (Snyder's Fritillary). _Butterfly_, ♂.--The wings on the upper side are light tawny, but little obscured by fuscous at the base. The black markings are moderately heavy and very sharply defined against the lighter ground-color. The outer margin is distinctly but not heavily marked. On the under side of the fore wings there are two subapical and five marginal silver spots. The ground-color of the under side of the hind wings is grayish-green, with a narrow pale-buff marginal belt. The spots are large and well silvered. ♀.--The female is much like the male, but on the hind wings the ground-color from the base to the outer belt is brownish. Expanse, ♂, 3.00 inches; ♀, 3.30 inches. _Early Stages._--Unknown. This species, which is very closely allied to _A. coronis_, is found in Utah. (29) =Argynnis callippe=, Boisduval, Plate XI, Fig. 1, ♂; Fig. 2, ♀; Fig. 3, ♀, _under side_ (Callippe).