Noctuidae : Noctuinae
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Photo © Mick Norman,  07/09/2023 - Gaywood, Kings Lynn

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Dark Sword-grass
Agrotis ipsilon
(Hufnagel, 1766) 2091 / 73.327

Norfolk status
One of Norfolks most regular migrants.
Can occur in any month, mostly between June and October.

Breeding in the UK has never been proven. The larvae feed on various herbaceous plants, but thought unable to over-winter.

Characteristic distinctive set of dark arrow-shaped darts on the forewing, one pointing outwards from the reniform stigma.

Recorded in 67 (91%) of 74 10k Squares.
First Recorded in 1840.
Last Recorded in 2025.
Additional Stats
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Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10kGeneral Area
20/04/2025128TF63Hunstanton
20/04/2025127TG13Hempstead
19/04/2025128TF63Dersingham
18/04/2025327TG13Hempstead
17/04/2025127TG23Trimingham
 Show Details | 1990 to 2024 | 2000 to 2024 | Graph Key
Express Record Dark Sword-grass
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Copyright © Lepidoptera UK 2025
   
Click Map for Details
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 15-25mm.
Flight: July-Oct (Recorded all months)
Foodplant:   Herbaceous plants
GB Status: Immigrant
Verification Grade:  Adult: 2
 Immature Adult   [Show Flight Times]
Further info: Agrotis ipsilon
 
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Underlying maps using Digital Map Data © NOLA™ 2025. © Lepidoptera UK - Jim Wheeler - Norfolk Moths 2007 - 2025. Data © NOLA™ 2025
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