Last modified: April 12, 2020, 10:56 a.m.
A common species throughout Belgium.
The adults fly from late April till mid August in one generation a year. They come to light.
The larva lives on various deciduous trees like Salix, Betula, Quercus and Corylus. The caterpillars remain together until nearing full growth. Hibernates as a pupa in a hole underground.