In the subterminal light wavy line, a large W character is visible, which serves as the basis for the Latin name w-latinum.

The hindwings are grey brown and mostly without markings but slightly darkened at the edge, only the dark veins emerge more clearly.

It is initially yellowish green, later whitish or grey with crimson spots on the top.

The dark red-brown pupa has a small, shovel-shaped cremaster with two tips constricted at the base.

[2] Main habitat are warm slopes, mixed forests, bushy heaths and park-like landscapes.