Formerly a primary migrant from mainland Europe, which occasionally arrived in sufficient numbers to temporarily establish: in the 21st century, now an increasingly common resident and found inland across southern Britain. In Hampshire and on the Isle of Wight first recorded in modern times in 1991, after which a scarce immigrant predominantly on the Isle of Wight; since 2008 has become increasingly common as a presumed resident species in the south-east of Hampshire and widespread across both counties. Quite variable but unlikely to be confused with any other species. Wingspan 24-30 mm. Larva feeds on various lichens.
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