(5) Brenthis chariclea, Schneider, Plate XV, Fig. 4, ♂ (Chariclea).
Butterfly, ♂.—Fulvous on the upper side, with heavy black markings, both wings greatly obscured at the base by fuscous. On the under side the fore wings are pale yellowish-fulvous, mottled with ferruginous at the tip and on the outer margin. The hind wings on the under side are dark purplish-ferruginous, mottled with yellow, crossed by a central row of conspicuous yellow spots. The row of marginal spots and two or three small spots at the base are white, slightly silvered.
♁.—The female differs from the male in having the markings of the upper side darker and heavier, and the outer margins more heavily marked with black, and having all the spots on the under side more distinctly defined against the dark ground. Expanse, ♂, 1.50 inch; ♁, 1.75 inch.
Early Stages.—Undescribed.
This species, like B. freija, is circumpolar, being found in Lapland, Greenland, and throughout arctic America. It also occurs within the limits of the United States, in the Yellowstone Park at considerable elevations, and is not uncommon on the high mountains in British Columbia, numerous specimens having been captured in recent years about Banff and Laggan, in Alberta.
(6) Brenthis boisduvali, Duponchel, Plate XV, Fig. 5. ♂; Fig. 6, ♁, under side (Boisduval's Fritillary).
Butterfly.—Somewhat closely resembling B. chariclea, but with the markings much heavier on the outer margin, and the base of the wings generally more deeply obscured with dark brown. The wings on the under side in color and marking closely approximate those of B. chariclea, and I have been unable to distinguish the specimens marked as boisduvali, and contained in the Edwards collection, from the specimens designated as B. chariclea in the same collection, so far as the color and maculation of the under sides of these specimens are concerned. Expanse, ♂, 1.50 inch; ♁, 1.75 inch.
Early Stages.—Unknown.
This species, originally described from Labrador, is found throughout boreal America and British Columbia.
(7) Brenthis freija, Thunberg, Plate XV, Fig. 9, ♂; Fig. 10, ♁, under side (The Lapland Fritillary).