♁.—The female is much like the male. Expanse, ♂, 1.30 inch; ♁, 1.50 inch.
Early Stages.—These are wholly unknown.
The species is reported from British Columbia, Colorado, Montana, Kansas, and Texas.
(10) Phyciodes mylitta, Edwards, Plate XVII, Fig. 40, ♂, under side; Fig. 41, ♂ (The Mylitta Crescent).
Butterfly, ♂.—Broadly bright fulvous on the upper side, with the dark markings slight; on the under side closely resembling P. tharos, var. marcia, Edwards.
♁.—The female is like the male, but paler. Expanse, ♂, 1.15 inch; ♁, 1.25-1.50 inch.
Early Stages.—These have been described by Mr. Harrison G. Dyar in the "Canadian Entomologist," vol. xxiii, p. 203. The eggs are laid in clusters upon the thistle (Carduus). The caterpillar in its final stage after the fourth moult is black, yellowish below, with a faint twinned yellow dorsal line and faint lines of the same color on the sides. The spines, which are arranged in six rows, are black; those of segments four, five, and six, yellow. The chrysalis is dull wood-brown.
This species has a wide range in the region of the Rocky Mountains, extending from Washington to Arizona, and eastward to Colorado.
(11) Phyciodes barnesi, Skinner, Plate XVIII, Fig. 5, ♂ (Barnes' Crescent-spot).
Butterfly, ♂.—Very like the following species, with the light fulvous of the upper side of the wings more widely extended, causing the dark markings to be greatly restricted. The figure in the plate is, in this species as in most others, that of the type, and I am under obligations to Dr. Skinner for kind permission to have the use of the specimen. Expanse, 1.75 inch.