Last modified: Jan. 15, 2023, 10:39 a.m.
New to Belgium in 2021 in LX.
Species can best be identified on the basis of the genitals.
Eggs are deposited mainly on leaves
Few days after hatching the larva starts to skelotonize leaves, covering the channels with silk, excrements and particles of substrate. The larva feeds also in the seeds that later dry and fall off.
The adults come to light.
The adults fly from late May towards August.
The larva feeds in the seeds of Fagus sylvatica.