Last modified: April 11, 2020, 1:04 p.m.
A fairly common and widespread species in Belgium.
The adults fly in one generation a year; from mid April till June, with a peak during May. It's possible to see a small number of specimens during August, and it is not certain yet whether these individuals are part of a partial second generation or belong to a delayed first generation. They come to light.
The larva lives mainly on Quercus , but it's also noticed on Fagus and Betula. Hibernates as a pupa usually in bark crevices or among plant debris.