Last modified: Oct. 18, 2023, 3:55 p.m.
A not so common and local species throughout Belgium. Observations are less in the north, more common in the south of the country, especially in the Calestienne area, where they are not that rare.
The species hibernates as an egg attached to a twig of the food plant. The adults come to light and sugar.
The adults fly in one generation a year from late July to mid-October.
The larva lives on Quercus.