Last modified: Sept. 16, 2023, 11:28 a.m.
Once a widespread species, but it has not seen in Belgium for a very long time. Presumably extinct.
Endangered species especially on the northern edge of their distribution.
The caterpillars live from April to June and then construct their cocoons in the upper soil.
They are on the wing during October and November, then hibernating and reappearing from March to May.
The larval foodplant is Quercus.
It inhabits clear, warm oak forests.