Last modified: Jan. 21, 2024, 6:41 p.m.
A rather rare species throughout Belgium.
Native
The larva lives under a slight silken web on the upperside of the leaves of the food plant. It pupates in a dense white cocoon on or close to the ground.
The adults come to light.
The adults fly in two generations a year from May till June and again during August.
The larva lives on Betula. In Belgium also found occasionally on Sorbus aucuparia.