A rare species in Belgium. It was formerly more widespread and is now declining rapidly. Most observations are now from the Kempen and the south of the country.

The larva feeds mainly Betula and Alnus glutinosa, also on other deciduous trees. The caterpillars remain together until they are about half-grown. Hibernates as pupa in a loose cocoon on the ground.

The adults fly from mid March till early May, but most specimens were seen during end of March till early April. The males are active during daytime and at dusk. Both sexes come to light, but males infrequently.