Local in woodland, heathland, marshes and other damp areas throughout much of south and north-west England. Widespread and fairly common in south Hampshire and on the Isle of Wight, but in the north of the county mainly restricted to the acid soils of Pamber and the north-east heaths where the foodplant, birch, is most common.
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