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Euthrix potatoria (Linnaeus, 1758)
Lasiocampidae: Pinarinae
1640 / 66.010
Photo © Damian Money,  Skelton in Cleveland, VC62

Similar Yorkshire Species: None
Forewing: M 21-25mm, F 28-35mm.
Flight: One generation. July-Aug
Foodplant:   Coarse grasses, reeds and sedges
Red List: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 1

Yorkshire Status: Common and fairly widespread resident.

Sutton & Beaumont, 1989: Well distributed and often frequent on lower areas and recorded sparingly from rough, wet grassy places on higher ground, where the cocoons maybe found on grass stems. There has recently been some shift in range since it has only been recorded in the Harrogate district since 1970 and is now locally common at two sites (H&DNSR Rep. 1970-87). It has also become common at certain sites in the Wolds since 1980 (PQW). Recorded from all five vice-counties.

2012 (CHF): Still fairly common in damp grassy areas and widespread across lowland areas of the county. Numbers are stable. The relief map shows quite dramatically how this is a moth of the lowlands.

Recorded in 137 (69%) of 200 10k Squares.
First Recorded in 1807.
Last Recorded in 2023.

Latest 5 Records
Date#VC10k Area
25/12/2023162TA09 - Cloughton / Scalby Mills
08/10/2023+61TA41 - Kilnsea / Spurn Head
13/09/2023+63SE71 - Crowle
23/08/2023463SE71 - Crowle
20/08/2023162NZ80 - Goathland / Grosmont
Further info: Euthrix potatoria
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