Photo © David G Green

Light Crimson Underwing

Catocala promissa

Checklist Number
72.082 [B&F: 2454]

Verification
Record will require further evidence, at least a good photograph, unless CMR is aware recorder has confidence in identification

Classification

Family:Erebidae
Subfamily:Erebinae
Genus:Catocala
Species:promissa
Authority:([Denis & Schiffermüller], 1775)

A once rare but now increasing species, associated with ancient oak woodland in parts of southern England, a priority species under the UK Biodiversity Action Plan. At the turn of the century it was very much confined to the New Forest and two large woodlands in south Wiltshire, with occasional records from elsewhere in southern England, which may have resulted from internal dispersal or migration from the continent. In Hampshire and on the Isle of Wight the 21st century has seen increasing scattered records throughout the county, still centred on the New Forest but now appearing well away from the historical locus here, likely to be a result of increased immigration from across the Channel and localised breeding in new locations. Wingspan 50-66 mm. The most likely confusion species are Red Underwing C. nupta and Dark Crimson Underwing C. sponsa, which see for differences. Larva feeds on Pedunculate Oak and Sessile Oak, over-wintering as an egg.

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
J F M A M J J A S O N D
Adult
Larval

Records by week (adult)

Records by week (larval)