Genus HYPOLIMNAS Hübner
(The Tropic Queens).
PL. XLII
Large butterflies, our species being one of the smallest of the genus. Palpi produced, heavily scaled, rising above the head. Fore wings excavated on the outer margin; costal and median veins stout; upper discocellular vein wanting, and lower discocellular feeble or lacking. Hind wings somewhat crenulate on the outer margin, the cell, which is relatively quite small, being feebly closed by an attenuated veinlet.
PL. XLIII
The genus, which is quite large, reaches its greatest development in the tropics of the Old World, and there is only one species in the western hemisphere, which may have been introduced in the old days of the slave trade. Most of the species are mimics and the strange thing is that the mimicking form is generally the female, which has the color and markings of some one or other of the milkweed butterflies of the African and oriental tropics. The female of our species patterns after the markings of Danais chrysippus, a common milkweed butterfly of Africa. This adaptation of species to the form and color of “protected” insects is of course not conscious. It is the result of a long evolution in past ages.
(1) Hypolimnas misippus (Linnæus), [Plate XLII], ♂; [Plate XLIII], ♀ (The Mimic).
Occurs in Florida, the Antilles, and northern South America. While very abundant in Africa, it seems to be scarce in the New World. The female differs greatly from the male on the upper side of the wings, but resembles that sex on the lower side. Expanse ♂, 2.50 inches; ♀ 3.00 inches.