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Red Underwing
Catocala nupta (Linnaeus, 1767)
Erebidae: Erebinae
2452 / 72.078
Photo © Paul Bryant,  Woolpit, Suffolk

Similar Suffolk Species: None
Forewing: 33-40mm.
Flight: One generation Aug-Oct.
Foodplant:   Black-poplar, White-poplar, Aspen, willows other poplars.
Nat Status: Common
Verification Grade:  Adult: 1

Morley's Final Catalogue: A grand insect that is luckily still common everywhere, since its first discovery in 'Suffolk' before 1830 (Stephens iii, 133). It is very keen upon assimilating the mottled-grey of its upperwings to the environment, and hence fond of sitting on stone-church-walls, e.g. at Fressingfield, Cransford and Nettlestead in 1920; another, flying in Hintlesham chyd on 14 August 1921, was snapped up by a sparrow. Sometimes it flies thus in bright sunshine, as in Orford town on 25 September 1929; but is usually taken on sugar, whereay it abounds about Bentley, Ipswich, Hemley, Martlesham, Henham, Oulton, Fritton, Gorleston, &c. Larvae occurred at Monks Soham on 17 June 1912. Mr. Platten took a splendid form, brunnescens of Warren (Entom. liv, 162) with quite dark hind wings, near Needham Market in 1905 (now reposing in Harwood's collection at Sudbury).

Recent status: Still common and widespread.

Identification: Compare with the Crimson Underwings.

Recorded in 52 (90%) of 58 10k Squares.
First Recorded in 1905.
Last Recorded in 2021.

Latest 5 Records
Date#VC10k Area
17/06/2021126TL96 - Thurston/Elmswell
12/10/2020125TM59 - Lowestoft
28/09/2020125TM04 - Hadleigh
28/09/2020125TM25 - Wickham Market/Otley
28/09/2020+25TM34 - Hollesley/Rendlesham Forest
Further info: Catocala nupta
 
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