Last modified: Sept. 25, 2020, 1:32 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 adults fly in one generation a year; from late July till early October. They come to light and sugar.
The larva lives on Quercus. Hibernates as egg attached on a twig of the food plant.