A common resident, probably found throughout the region, but true picture not known because of identification difficulties.

Most numerous in broadleaved woodland but also found in hedgerows, gardens, scrub.

Overwinters as an egg while adults fly readily from dusk and come to light.

Note Can ONLY be reliably be identified by examination of the genitalia.

Verification Grade Comment: Genitalia examination required.

	Determination by Genitalia Examination (gen. det.) Required

Recorded in 49 (35%) of 140 10k Squares.
First Recorded in 1960.
Last Recorded in 2023.
(Data up to end 2023)