Last modified: Jan. 23, 2021, 10:58 a.m.
A common species throughout Belgium.
The adults fly in two generations per year; from mid April till mid June and again from early July till early September. Sometimes a third and partial generation occurs.They come to light.
The larva lives mainly on Betula, but has also been found on Alnus glutinosa. Hibernates as pupa in a cocoon between leaves.