Local in broad-leaved woodland, parks and gardens throughout much of southern England; in Hampshire and on the Isle of Wight, occurs at very low density throughout, the majority being taken at light after hibernation. Wingspan 40-44 mm. The main confusion species is Pale Pinion L. hepatica, especially dark forms, but the forewing is less narrow, with slightly arched costa and no black pre-tornal streak (MBGBI Vol 10). Larva feeds on Ash.

Flightime guide
J	F	M	A	M	J	J	A	S	O	N	D