Last modified: Oct. 12, 2023, 5:40 p.m.
A very rare and local species in Belgium, not seen for a long time but recently (2020) found again in NA.
Since the species lives in the treetops of old oak trees on limestone soil, the species is only very rarely encountered on light. As a result, the status is probably slightly less rare than the current one.
The adults are on the wing from early April till mid-May.
The larva lives on Quercus.
Old Quercus forest on calcarious soils.