Forewing pale lilac grey in lower half, becoming pale lilac brown in costal; markings usually much confused; inner line and median shade thick, brown; claviform stigma outlined with black; orbicular round, reniform large, both pale; outer line denoted by a row of black dashes on veins; marginal area beyond submarginal line darker; hindwing pearly white, slightly tinged with grey; the apex and veins brown; — ab.

has the forewing suffused with dark brown or black, except the inner area and a narrow praesubmarginal band, which are pearly grey or white; — in the ab.

[1] The hemispherical egg is stained with chalk white, but reddish yellow at the top pole.

The pupa has a reddish-brown hue as well as a blunt cremaster with two short tips and two curved thorns.

The larvae feed on Genista tinctoria, Cytisus scoparius and Clematis vitalba.