Erebidae : Erebinae
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Photo © Oliver Wadsworth,  Childswickham VC33. 09/09/2020

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Immature stages

Similar West Midlands Species
Red Underwing
Catocala nupta
Dark Crimson Underwing
Catocala sponsa
Light Crimson Underwing
Catocala promissa
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Clifden Nonpareil
Catocala fraxini

(Linnaeus, 1758) 2451 / 72.076
=Blue Underwing

Formerly a rare migrant but there have been more records in recent years and it is now resident.

A species of broadleaved woodland but it is very mobile so may be seen almost anywhere.

Overwinters as an egg and adults are attracted to sugar and to light.

Retained Specimen / Photograph will be Required.

Recorded in 57 (41%) of 140 10k Squares.
First Recorded in 1852.
Last Recorded in 2024.
(Data up to end 2023)
Additional Stats

Forewing: 41-48mm
Flight: Aug - October
Foodplant:   Aspen, poplars
Red List: Least Concern (LC)
GB Status: Not Assessed / Immigrant
Former Status: Immigrant/Resident
Verification Grade:  Adult: 3
< Beautiful Marbled | Red Underwing >
List Species Records   [Show All Latest]
Latest 5 Records (data up to end 2023)
Date#VC10k Area
24/10/20231VC39 - StaffordshireSJ84
16/10/20231VC37 - WorcestershireSO97
07/10/20231VC37 - WorcestershireSO95
06/10/20231VC39 - StaffordshireSJ93
30/09/2023+VC39 - StaffordshireSP09

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 Immature Adult   [Show Flight Weeks]
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
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