Butterfly.—The plate gives a good idea of the upper side of the wings in both sexes. On the under side the fore wings are pale gray in the male and pale red in the female, with the outer margin lavender. The spots of the upper side reappear on the disk. The hind wings on the under side are purplish-gray on the inner two thirds and paler gray on the outer third, with many black spots on the disk, margined with white. Expanse, 1.10-1.25 inch.

Early Stages.—These have been partially described by Dyar in the "Canadian Entomologist," vol. xxiii, p. 204. The caterpillar feeds on the wild gooseberry (Ribes).

Arota is a Californian species.

(2) Chrysophanus virginiensis, Edwards, Plate XXVIII, Fig. 23, ♂; Fig. 24, ♁ (The Nevada Copper).

Butterfly.—Allied to the preceding species, but easily distinguished by the submarginal white bands of crescent-shaped spots on the under side. These are particularly distinct on the hind wings. Expanse, 1.25-1.30 inch.

Early Stages.—Unknown.

Virginiensis, so named because the first specimens came from Virginia City, ranges in California, Nevada, and Colorado.

(3) Chrysophanus xanthoides, Boisduval, Plate XXVIII, Fig. 29, ♂; Fig. 30, ♁ (The Great Copper).

Butterfly.—The student will easily recognize it by its larger size, it being the largest species of the genus in North America, and by its creamy-white under surface, spotted with distinct small black spots, in large part reproducing the spots of the upper side. Expanse, 1.50-1.65 inch.