Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Uncommon and fairly widespread resident.

Local Record: Grade 2   See here for explanation

Flight time: One generation, Aug-Oct.

Forewing: 33-40mm.

Foodplant: Black-poplar, White-poplar, Aspen, willows other poplars.

IMPORTANT - Please note that the maps and accounts are provisional, subject to change and further update.  The whole dataset still needs to go through the final verification process and it is likely that a very small number of records will not satisfy the present requirements and there are other records that have not been formally submitted.  The information is for guidance only.

Record breakdown:

Year first recorded190519851905
Year last recorded201120112011
Number of records33441750
Number of individuals34445778
Unique positions8312190
Unique locations7211166
Adult records32039718
Immature records012

For the region, we have a total of 750 records from 166 sites. Earliest record on file is in 1905.


2452 Red Underwing 05
© Julian Francis
2452 Red Underwing 04
© Julian Francis
2452 Red Underwing 03
© Will Bown
2452 Red Underwing 02
© Dave Foot
2452 Red Underwing 01
© Tom Morris

Species Account

Similar species: 2453 Catocala electa (Rosy Underwing).

For further information refer UK Moths.

Davey, P., 2009: A species restricted to south-eastern Britain, the larva feeding on poplar (Populus spp.) and willow (Salix spp.). In Dorset, the moth is at low density, typically occurring in river valleys where willows and poplars flourish; there is no indication that the species colonises sallow-rich localities. Although the moth is strongly attracted to sugar, many of the records are from light trap. The moth also flies during the day when it may be seen on house walls.

See background to species accounts.  Index of Vernacular names - Search - Random Species