(2) Phyciodes ismeria, Boisduval and Leconte, Plate XVII, Fig. 24, ♂; Fig. 25, ♂, under side (Ismeria).

Butterfly, ♂.—Easily distinguished from all other allied species by the double row of small light spots on the dark margin of the fore wings on the upper side, and by the silvery, narrow, and greatly bent line of bright silvery spots crossing the middle of the hind wings on the under side.

♁.—The female is like the male, but larger and paler and all the spots on the upper side are pale fulvous, and not as distinctly white on the outer margin as in the male sex. Expanse, ♂, 1.15-1.35 inch; ♁, 1.35-2.00 inches.

Caterpillar.—The caterpillar, according to Boisduval and Leconte, is yellowish, with blackish spines and three longitudinal blackish stripes. The head, the thoracic legs, and the under side are black; the other legs are yellow.

Chrysalis.—According to the same authors, the chrysalis is pale gray, with paler light spots and nearly white dorsal tubercles.

This insect ranges over a wide territory from Canada to the Southern and Western States east of the Rocky Mountains.

(3) Phyciodes vesta, Edwards, Plate XVII, Fig. 17, ♂; Fig. 18, ♁; Fig. 19, ♁, under side (Vesta).

[Plate XVII.]

Butterfly, ♂.—On the upper side it closely resembles the winter form marcia of Phyciodes tharos, Drury; but the black markings are more evenly distributed. The under side is a pale yellowish-fulvous, and the black markings are slight.

♁.—The female is like the male, but paler. Expanse, ♂, 1.15 inch; ♁, 1.25 inch.