Last modified: Nov. 5, 2023, 1:20 p.m.
A rare species in Belgium, more observed in the northern part.
Native
Grub-like larvae have very short legs and a retracted head.
Hibernates as a fully grown larva in a gall-like cocoon on a leaf or twig. Flies mainly at night, usually on warm nights and coming to light in small numbers. Sometimes also active during sunny afternoons.
The adults fly in one generation a year from mid-June till late August.
The larva lives mainly on Fagus and Quercus in ancient woodlands.
It inhabits woodland areas.