The costa is strigulated with blackish and posteriorly with white.The edge of the basal patch is suffused with ferruginous-brown, partly blackish-marked and obtusely angulated Beyond this there issometimes an obscure whitish subquadrate dorsal spot .

The central fascia is darker, often ferruginous-suffused; costal half beyond this sometimes ferruginous suffused, with some black scales.

The ocellus is obscurely edged with leaden-metallic, usually preceded by a small black subdorsal spot.

There is a white subapical dash in cilia.The hindwings are grey.The larva is pale yellowish-green; head and plate of 2 dark or light brown.

[4] The young larvae bore into the stem of Betula and Alnus species.