Erebidae : Erebinae
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Photo © John Mann,  21/07/2023 - Heacham

Similar Norfolk Species
Dark Crimson Underwing
Catocala sponsa
Red Underwing
Catocala nupta
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Light Crimson Underwing
Catocala promissa

([Denis & Schiffermüller], 1775) 2454 / 72.082

Norfolk status
Uncertain/Rare migrant.
Formerly confined to large Oak woodland in the New Forest, increasing its range in SE England in recent years.

Similar to Dark Crimson Underwing. DCU is usually larger and brown in general colouration, LCU is smaller and greyer. The hindwing upperside is the most reliable feature to separate. DCU black cross-bar deeply waved. LCU black cross-bar much straighter with shallow waves. See field guides for more info.

First modern-day records at Hunstanton in 2022 (R. Sturgess, 05/08/22) and at Heacham in 2023 (J. Mann, 21/07/23) Both taken in areas of old Oak trees.
Specimen also taken at Cley NNR in 2023 (D. Norgate et. al.,01/08/23)

Documented record from Norwich in 1993 is not valid. Specimen was dead, and is thought travelled to Norwich from the New Forest in someone's car!

Barrett [VCH 1901] Catocala promissa, Sch.
" Foxley, Foulsham, and once at Hethersett; an exceedingly local species"

BAP Priority Species

Retained Specimen / Photograph will be Required.

Recorded in 5 (7%) of 74 10k Squares.
First Recorded in 1873.
Last Recorded in 2023.
Additional Stats

< Dark Crimson Underwing | Burnet Companion >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10kGeneral Area
01/08/2023127TG04Cley next the Sea
01/08/2023127TG04Salthouse
21/07/2023128TF63Heacham
05/08/2022128TF64Hunstanton
1901127TG10Hethersett
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Light Crimson Underwing
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Click Map for Details

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 26-32mm.
Flight: July - September
Foodplant:   Pedunculate Oak, possible Sessile Oak
Red List: Near Threatened (NT)
GB Status: Nationally Rare
BAP Status: Priority Species
Former Status: Red Data Book
Verification Grade:  Adult: 3
 Immature Adult   [Show Flight Times]

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Underlying maps using Digital Map Data © NOLA™ 2024. © Lepidoptera UK - Jim Wheeler - Norfolk Moths 2007 - 2024. Data © NOLA™ 2024
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