Last modified: May 18, 2022, 10:08 a.m.
Used to be a fairly common species in the south of Belgium, but has become very rare now.
The adults fly in one generation a year; from mid May till late July. They are active from dusk onwards and later come to light.
The larva lives on young shoots and leaves of Populus tremulifolia and Salix. Hibernates as a pupa, in a tough cocoon of silk and chewed bark on a twig on the food plant.