Erebidae : Erebinae
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Photo © Jo Carey,  30/07/2020 -Norwich

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

(Linnaeus, 1767) 2455 / 72.081

Norfolk status
Rare migrant, recent resident.

Unconfirmed old Norfolk records from Foxley Wood 1967 and two questionable BRC record card entries!

First modern-day confirmed Norfolk record at Toftwood in 2018 (D. Norgate, 26/07/18) Found on shed by the 20W Actnic trap left in garden overnight.

Formerly listed as a Red Data Book category RDB3 species, occurring as a breeding species only in the New Forest, Hampshire.

Several Norfolk records in recent years, with multiple records from the same sites indicating the species is now breeding in Norfolk.

Similar to the rare Light 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.

BAP Priority Species

Retained Specimen / Photograph will be Required.

Recorded in 24 (32%) of 74 10k Squares.
First Recorded in 1961.
Last Recorded in 2023.
Additional Stats

< Red Underwing | Light Crimson Underwing >

Determination
07-08-2020 - Eccles-on-Sea - Dark Crimson - Red Underwing comparison - Neil Bowman
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10kGeneral Area
10/09/2023+27TG14Sheringham
08/09/2023127TG20Norwich (Eaton)
02/09/2023128TF93Little Snoring / Thursford
26/08/2023127TG14Sheringham / Beeston
22/08/2023127TG32Honing / Crostwight Common
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Dark Crimson Underwing
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Click Map for Details

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 29-34mm
Flight: July - September
Foodplant:   Pedunculate Oak, Sessile Oak
Red List: Near Threatened (NT)
GB Status: Nationally Rare / Immigrant
BAP Status: Priority Species
Former Status: Red Data Book / Immigrant
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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