_Butterfly._--The male on the upper side is bright fulvous. The black markings, especially those about the middle of the wing, are heavy. Both wings at the base are clouded with fuscous, the under side of the primaries red toward the base, buff on the apical area; the subapical and the upper marginal spots well silvered; the hind wings with the inner two thirds more or less deeply ferruginous, a little mottled with buff, very rarely encroached upon by the dark color of the inner area, except occasionally near the anal angle. Expanse, ♂, 2.40 inches; ♀, 2.70 inches. _Early Stages._--The early stages have not as yet been described. This species is found in Oregon, Washington, Montana, and in the southern portions of British Columbia and Vancouver's Island. (20) =Argynnis zerene=, Boisduval, Plate XIV, Fig. 9, ♂, _under side_ (Zerene). _Butterfly._--The male on the upper side is reddish-fulvous, with rather heavy black markings, the mesial band of spots being confluent. The under side of the fore wings is reddish, inclining to pink, with the apex laved with buff. The hind wings have the ground-color purplish-gray, mottled on the inner two thirds with ferruginous. The spots are not silvered, but are a delicate gray color. The female is colored like the male, but the red at the base of the fore wings in this sex is much deeper, and the yellow at the apex of the primaries contrasts much more strongly. The spots on the under side in the female sex are frequently well silvered, though in many specimens they are colored exactly as in the male sex. Expanse of wing, ♂, 2.17 inches; ♀, 2.50 inches. _Early Stages._--The early stages of this species have not as yet been ascertained. This beautiful butterfly, which is somewhat inclined to variation, is found in northern California, being quite common about Mount Shasta. It is also found in Oregon and Nevada. One of the varietal forms was named _Argynnis purpurescens_ by the late Henry Edwards, because of the decided purplish tint which prevails on the under side of the secondaries, extending over the entire surface of the hind wings and covering likewise the apex of the fore wings. This purplish-brown is very marked in specimens collected about the town of Soda Springs, in northern California. (21) =Argynnis monticola=, Behr, Plate XIII, Fig. 7, ♂, _under side_; Fig. 8, ♂; Plate XIV, Fig. 17, ♀ (Behr's Fritillary).