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Light Knot Grass
Acronicta menyanthidis (Esper, 1789)
Noctuidae: Acronictinae
2286 / 73.042
Photo © Allan Drewitt

Similar Norfolk Species: None
Forewing: 16-20mm.
Flight: One generation May-July.
Foodplant:   Woody plants. Bog-myrtle, Heather, Bilberry etc.
Nat Status: Local
Verification Grade:  Adult: 3
Norfolk Status
Locally Scarce.
Moorland, bogs, heathland.
Broad, rounded, grey with blackish markings on forewings.
f.suffusa found in N England, and very locally in Norfolk.
Its nearest occurrence to Norfolk is the Staffordshire moorlands!

Modern day records only known from Roydon Common, and since 2000, at Desingham bog NNR.
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 2021.

Latest 5 Records
Date#VC10k Area
18/05/2021128TF62 - King's Lynn/Dersingham
07/05/2016328TF62 - King's Lynn/Dersingham
19/07/2014128TF62 - King's Lynn/Dersingham
02/08/2013128TF62 - King's Lynn/Dersingham
06/08/2011+28TF62 - King's Lynn/Dersingham
Further info: Acronicta menyanthidis
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