Genus Phycioaes 
and the pale, silvery crescent on the outer margin. Expanse, $ , 
1.25-1.65 inch; $, 1.65-2.00 inches. 
Egg .—The egg is half as high again as broad, marked with 
sixteen or seventeen vertical ribs above, and pitted about the 
middle by hexagonal cells. It is pale green in color. 
Caterpillar. —The caterpillar undergoes four moults after 
hatching. In the mature stage it is velvety-black, with a dull 
orange stripe along the back, and purplish streaks on the sides. 
The body is studded with whitish spots, each giving rise to a 
delicate black hair, and is further beset with rather short, black, 
hairy spines. 
Chrysalis. —The chrysalis is pearly-gray, blotched with dark 
brown. 
The life-history of this species has been carefully worked out, 
and all the details may be found described in the most minute 
manner by Edwards and by Scudder. 
The insect ranges from Maine to North Carolina, and thence 
westward to the foot-hills of the Rocky Mountains. 
(2) Phyciodes ismeria, Boisduval and Leconte, Plate XVII, 
Fig. 24, $ ; Fig. 25, 6 , 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, 6 , 
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, 6 ; Fig. 
18, $ ; Fig. 19, $, under side (Vesta). 
Butterfly , 6 .-—On the upper side it closely resembles the win- 
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