Noctuidae : Acronictinae
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Photo © Kathryn Parsons,  Dersingham Bog 18/05/2021

Immature stages

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Similar Norfolk Species: None
Light Knot Grass
Acronicta menyanthidis

(Esper, 1789) 2286 / 73.042

Norfolk status
Modern-day Norfolk records only known from the King's Lynn area of West Norfolk at Roydon Common, and since 2000, at Dersingham Bog NNR.

Found mainly in Northern England, this is a species of acid moorland and damp heathland. Its nearest occurrence to Norfolk is the Staffordshire moorlands!

Adult moths can be found resting exposed on fenceposts and rocks by day. At night they will come to light.

Two larvae taken in the broads pre 1874, one of which was reared. C. Barrett (Trans. 1874) "The moth is unquestionably this species. Had i not seen it I should have felt great doubt of the propriety of including this northern species in the Norfolk list."

Retained Specimen / Photograph will be Required.

Recorded in 4 (5%) of 74 10k Squares.
First Recorded in 1874.
Last Recorded in 2024.
Additional Stats

< Marsh Dagger | Knot Grass >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10kGeneral Area
07/05/2024128TF62Dersingham Bog
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Light Knot Grass
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Copyright © Lepidoptera UK 2024
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 16-20mm.
Flight: One generation May-July.
Foodplant:   Woody plants Bog-myrtle, Heather, Bilberry etc
Red List: Least Concern (LC)
GB Status: Common
Former Status: Local
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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