Last modified: June 19, 2022, 6:22 p.m.
A common spring species throughout Belgium.
The caterpillars are frequently eating other caterpillars. Hibernates as a pupa in an underground cocoon, often close to a tree trunk.
The adults come to light, sugar and sallow catkins.
The adults fly in one generation a year, when conditions are mild, from mid February till late April.