Last modified: Oct. 14, 2023, 4 p.m.
A very rare and local species in Belgium. Nowadays most observations come from the southern part of the country.
Hibernates as a pupa in a cocoon under the ground near the food plant.
The males come to light, females occasionally.
The adults fly in one generation a year onwards from beginning of May till end of June.
The larva lives on deciduous trees with a strong preference for Quercus.