Last modified: Feb. 19, 2020, 6:31 p.m.
A rather common species in Belgium. A species of fluctuating occurrence: sometimes absent, sometimes a pest in oak forests. It has mainly been observed in the Kempen region, but occurs also in many other regions.
The adults fly mainly in July and August, though some specimens have been observed as early as 28 May. They come to light.
The larva lives on Quercus. Hibernates as an egg.