Genus Adelpha Hübner (the Sisters)
Cell of fore wing lightly closed, of hind wing open; outer margin of wings rarely excavated. The chrysalids have peculiar forms, having bifid heads and broad wing-cases; marked with metallic spots on a brown ground.
There are many species in tropical America, some of which are very showy; only one occurs within our limits.
(1) Adelpha californica Butler, Plate XLVIII, ♂ (The Californian Sister).
The insect, well displayed in our figure, has an expanse of from 2.50-3.00 inches. The caterpillar feeds upon oaks. The range is through southern California, Nevada, southern Utah, Arizona, and Mexico.