They are dark green with yellow stripes along the top and sides of the body, and have two black tubercles on the top of the thorax. Libytheana carinenta mexicana Michener, the only other species in this family also occurs in southern Texas. Adults apparently mate during the night. Females lay eggs on host plants. There may be up to four generations per year.
Caterpillars have chewing mouthparts.
Adults have siphoning mouths. Caterpillars feed on tender foliage. Adults are frequently attracted to fermenting fruit and visit wildflowers. Males are encountered around host trees. When at rest, wings are held closed, over the body and appear to mimic dead leaves.