Woodland, scrub, hedgerows, gardens and parks.
Very similar to Copper Underwing.
The underside of the hindwing is considered the most, but not totally reliable distinguishing feature.
Underside of hindwings
(Copper & Svensson's)
Other external features are considered subjective and unreliable.
Record as Copper Underwing agg. if unsure.
Verification Grade Comment: Hindwing must be checked or Gen. Det.
Recorded in 58 (84%) of 69 10k Squares.
First Recorded in 1961.
Last Recorded in 2020.