Last modified: May 20, 2022, 5:12 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, 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.
Old Quercus forest on calcarious soils.