Nationally scarce (Nb) in broad-leaved woodland and hedgerows throughout much of south-eastern England. In Hampshire and on the Isle of Wight appears to be one of the species which is benefiting from the increase in average summer temperatures in recent years, with a marked increase apparent in the last ten years, and more than 120 records received in 2006. Wingspan male 24-28 mm, female 27-32 mm. Unmistakable. Larva feeds on Oak and Beech, over-wintering in a cocoon.
The abundance in each month is indicated as follows:
No records Very occasional Irregular Uncommon Off-peak, but not unusual Off-peak, but not unusual Main flight time