Fringes of hindwing are pale-tipped. Wings are black. Pattern on upperside of forewing has very little contrast with background.
Transparent spots are small in the male, large in the female.
Fully-grown caterpillars hibernate. Two broods from March-September in the Southwest. Oak thickets in foothills. G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery. Opler, P. A. and V. Malikul.