Noctuidae : Acronictinae
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Immature stages

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Similar Norfolk Species: None
 
Light Knot Grass
Acronicta menyanthidis
(Esper, 1789) 2286 / 73.042
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 (6%) of 69 10k Squares.
First Recorded in 1874.
Last Recorded in 2016.
Additional Stats

< Marsh Dagger  |  Knot Grass >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
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
05/08/2011128TF62 - King's Lynn/Dersingham
 Show Details | 1990 to 2019 | 2000 to 2019 |
Express Record Light Knot Grass
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Copyright © Jim Wheeler 2020
   

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
Nat Status: Local
Verification Grade:  Adult: 3
 Immature Adult
Further info: Acronicta menyanthidis
 
UK Moths
Suffolk Moths
Essex Field Club
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Yorkshire Moths
Dorset Moths
Northumberland Moths
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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ 2020. © James Wheeler - Norfolk Moths 2007 - 2020. Data © NOLA™ 2020
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