Local in broad-leaved woodland, scrub, parks and gardens throughout the British Isles; widespread and common in Hampshire and the Isle of Wight. Wingspan 34-38 mm. Unmistakable. Larva feeds on Oak, and a number of other deciduous trees, including Downy and Silver Birch, Sallow and Beech, over-wintering as a pupa.
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