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Larch Pug
Eupithecia lariciata (Freyer, 1842)
Geometridae: Larentiinae
1856 / 70.163
Photo © Terry Box,  SE4981:Hag Wood, Kilburn, VC62

Similar Yorkshire Species
Pauper Pug / Fletcher's Pug
Eupithecia egenaria
White-spotted Pug
Eupithecia tripunctaria
Forewing: 10-12mm
Flight: May - July
Foodplant:   Larch
Red List: Near Threatened (NT)
GB Status: Common
Verification Grade:  Adult: 3

Yorkshire Status: Local resident.

"Apparently abundant throughout the county wherever larch grows" said Porritt in 1907, and it would be hard to argue with that assessment nowadays. The low numbers recorded reflect the lack of people trapping in larch plantations, but this is a more popular pastime in VC62 which is where most of our records come from. It is not common in gardens as it tends not to stray too far from its foodplant, but in the right habitat it can be quite common for example 55 at Pexton Bank Wood on 17/7/2022. When fresh it is reasonably distinctive but along with many species it tends to wear quickly and then becomes more difficult. The white thoracic spot and the angulation of the cross bands distal to the prominent discal spot are helpful features, but it can certainly be confused with Grey Pug and Golden-rod Pug. Numbers appear to be stable in Yorkshire.

Sutton & Beaumont, 1989: Fairly widely recorded in VC63 and VC64 wherever larch plantations occur in woodlands but rather sparsely recorded in the rest of the County, especially in VC61, where larch is very local.

Retained Specimen / Photograph will be Required.

Recorded in 76 (38%) of 200 10k Squares.
First Recorded in 1880.
Last Recorded in 2023.
Additional Stats

Latest 5 Records
Date#VC10k Area
22/08/2023162SE88 - Pickering (E)
17/08/2023262SE88 - Pickering (E)
10/08/2023362NZ51 - Middlesbrough
10/08/2023164SD66 - High Bentham
10/08/2023162SE88 - Pickering (E)
Further info: Eupithecia lariciata
 
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