The common wood-nymph (Cercyonis pegala) is a North American species of butterfly in the family Nymphalidae.

[2] These butterflies have ears at their forewing bases that are most sensitive to low frequency sounds (less than 5 kHz).

A conspicuous swelling of their forewing subcostal vein is directly connected to the ears.

Mead's wood-nymph (Cercyonis meadii) has a bright red-orange area on the ventral forewing.

The egg is pale yellow, later turning to a tan color with orange or pink blotches.

[4] The common wood-nymph is found from mid-May to early October in the eastern part of its range.