Noctuidae : Acronictinae
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Light Knot Grass
Acronicta menyanthidis

(Esper, 1789) 2286 / 73.042
Photo © Damian Money,  Fen Bog, VC62

Immature stages

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Similar Yorkshire Species: None
Express Record Light Knot Grass

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Yorkshire Status: Rare and local resident.

Sutton & Beaumont, 1989: Apparently very local, mostly on high moors and less widely recorded than in previous years. Also recorded from sites just to the north of the County in Upper Teesdale (Dunn & Parrack, 1986).

Argus 58, 2009: It is surprising that this moth of heathland and moorland has not been found previously in VC65. A record of this distinctive larva, just on the VC65 side of the 64/65 boundary was a good find.

VC65. Mossy Bottom, larva 28.8.2009 (DP). NEW VICE-COUNTY RECORD.

2012 (CHF): In Porritt's time this species was commoner and he described it as generally common on heaths and moors in 1883 and in 1907. It certainly seems to be a lot more local now but we still receive small numbers of records from many upland areas of the county. It also occurs on our lowland heaths with many records from Strensall but very few from Skipwith. It has not been recorded from Thorne Moors since 1967. Occasionally wandering specimens are recorded from lowland areas eg one at Spofforth on 5.6.2008.

Retained Specimen / Photograph will be Required.

Recorded in 59 (30%) of 200 10k Squares.
First Recorded in 1880.
Last Recorded in 2023.
Additional Stats

< Miller  |  Scarce Dagger >
Forewing: 16-20mm
Flight: May - July
Foodplant:   Bog-myrtle, Heather, Bilberry and other plants
Red List Status: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 3
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
19/06/2023163SE01 - Marsden
19/06/2023263SD93 - Wycoller
17/06/2023362SE89 - Hole of Horcum
14/06/2023162SE66 - Strensall
12/06/2023465NZ01 - Barnard Castle
  Immature   Adult   [Show Flight Weeks]
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
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