♁.—The female on the upper side is colored like the male, with the dark markings somewhat heavier. On the under side the fore wings are laved over almost their entire surface with red, the upper angle of the cell alone being buff. The hind wings are in many specimens fawn-colored throughout, except that the marginal band is paler. In a few specimens the ground is darker and the band more distinct. All the spots are well silvered. Expanse, ♂, 2.60 inches; ♁, 2.75-3.00 inches.
Early Stages.—The life-history of this butterfly has not been ascertained.
The species appears to be very common at San Bernardino, California, and vicinity, and resembles A. adiante on the upper side and A. coronis upon the lower side.
(38) Argynnis inornata, Edwards, Plate XIII, Fig. 10, ♁, under side (The Plain Fritillary).
Butterfly, ♂.—This species resembles A. rupestris in its markings, but is somewhat paler, the black margins are heavy and the black markings on the disk comparatively light; the base of the wings is obscured with fuscous. On the under side the fore wings are cinnamon-brown, with the apical area buff. The hind wings are reddish-brown, with the marginal band clear buff. All the spots are buff, and completely devoid of silvery scales.
♁.—Paler than the male on the upper side. The fore wings on the under side are orange-fulvous; the hind wings are pale greenish-brown, mottled with buff. In some specimens a few silver scales are found on the submarginal spots. Expanse, ♂, 2.50 inches; ♁, 2.70 inches.
Early Stages.—Unknown.
This butterfly, which is as yet not very common in collections, is found in California and Nevada.
(39) Argynnis atossa, Edwards, Plate XIII, Fig. 12, ♂ (Atossa).