Last modified: March 9, 2023, 2:52 p.m.
A rather common species throughout Belgium, especially in the northern part.
Native
The adult flies from mid May till September in normally one generation a year, but a partial second generation occurs frequently. They are active towards dusk and later occasionally come to light.
The larva lives at first in the catkins, and later in the leaf-buds of Corylus avellana or Alnus glutinosa. The larva hibernates. Pupation takes place in leaf-litter or under moss in a flimsy silken cocoon.