[1][2] The Athyma perius male has black wings with a series of white markings, while the female is a blackish brown.

The underside of the wings are ochre yellow with the white markings as on the upperside but heavily margined and defined with black.

Hindwing crossed by a broad white inner-discal band and a narrower submarginal macular band, the latter being inwardly bordered by a row of small distinct black spots; a marginal row of very slender sullied-white lunules.

Forewing also with the posterior border interspaced with diffused pale purpurescent-black patches, and a black ringlet-mark below the cell.

Athyma perius uses Glochidion lanceolatum, G. velutinum and Wendlandia thyrsoidea as food plants.