A common species throughout Belgium, but almost never in great numbers.

The larva feeds in September on Quercus between spun leaves. Pupation in a loose cocoon amongst detritus on the ground. The pupa hibernates.

The adults fly from end of April till the end of August, but mainly from mid May till mid July. It's not clear yet if there are two generations or one extended generation. They rest on tree trunks in the daytime and come to light.