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Reddish Light Arches
Apamea sublustris (Esper, 1788)
Noctuidae: Xyleninae
2323 / 73.164
Photo © Stephen Youngs,  09/06/2019 - Peddars Way

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Similar Species
Pale Shining Brown
Polia bombycina
Light Arches
Apamea lithoxylaea
Forewing: 18-21mm.
Flight: One generation June-July.
Foodplant:   Grasses.
Red List: Least Concern (LC)
GB Status: Common
Former Status: Local
Verification Grade:  Adult: 2
Status
Scarce.
Very similar to Light Arches but generally darker.
Grassland on chalky and limestone soils.

Recorded primarily locally in Breckland, with occasional records from other locations (confirmation required).

Characteristic dark wedges on the outer edge of the forewing separate this species from Light Arches.

Please provide a photo if recorded away from the Brecks, as several records from East Norfolk have been proved to be misidentifications.

Recorded in 33 (45%) of 74 10k Squares.
First Recorded in 1873.
Last Recorded in 2023.

Latest 10 Records
Date#VC10kArea
03/07/2023+28TL79Cranwich Heath
02/07/2023128TL99Thompson Water
01/07/2023128TL78Weeting Heath
30/06/2023128TM09Great Ellingham
28/06/2023128TF92North Elmham
27/06/2023228TL79Mundford
27/06/2023128TF71Marham Fen
26/06/2023+28TL79Cranwich Heath
25/06/2023127TG13Little Barningham
22/06/2023+28TL78Weeting Heath (Gravelpit Wood)
Further info: Apamea sublustris
 
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