(2) Euptoieta hegesia (Cramer), The Mexican Fritillary.
Very much like the preceding species, only the wings, especially the hind wings, have very few dark markings, except about the borders, and the insect is smaller. Expanse ♂, 1.6 to 2.25; ♀, 2.25 to 2.5 inches.
Found in Texas, Arizona, and southward.
Genus ARGYNNIS Fabricius
PL. VIII
Butterflies of medium or large size, generally of some shade of reddish fulvous, conspicuously marked on the upper side with dark spots and waved lines, which are less conspicuously repeated on the under side, and in many species in part replaced by silvery spots. In some species the males and the females are dimorphic, that is, very different in appearance from each other. The palpi are strongly developed and clothed heavily with hairs. The antennæ have a short, well-defined, flattened, somewhat spoon-shaped club. The cells of both fore and hind wings are closed. Eggs cone-shaped, flattened, and depressed at the top, rounded at the base, ribbed both ways, mostly near the base. Caterpillars dark in color, spiny, with the spines on the first segment the longest; feeding on violets at night, and hiding during the day. Chrysalis angular, adorned with more or less prominent projections, head bifid.
This large genus has many species. It occurs in both hemispheres. Its metropolis is North America, and we can speak of only a few of the commoner and more conspicuous forms.
(1) Argynnis idalia (Drury), The Regal Fritillary. [Plate VIII], ♂.
The figure given will help the student to recognize this insect. The caterpillar, when fully grown, is about 1.75 inches in length, black, banded and striped with ochreous and orange-red, and ornamented with fleshy spines, of which the two rows on the back are white tipped with black, those on the sides black tinged with orange where they spring from the body. The chrysalis is brown mottled with yellow.