Last modified: Jan. 21, 2021, 12:05 p.m.
A fairly common species throughout Belgium.
The larvae live, sometimes gregariously, in a dense web. They hibernate. Pupation in a dense cocoon amongst the foodplant, on the surface of the ground or in spun leaves. They are active just before dusk and later come to light.
The adults fly from the end of June till early October.