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Scarce Pug
Eupithecia extensaria Prout, 1914
Geometridae: Larentiinae
1847 / 70.178
Photo © Jim Swalwell Keith Kerr,  NW Norfolk, 09 June 2019

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Similar Species: None
Forewing: 11-13mm.
Flight: One generation June-July.
Foodplant:   Sea Wormwood.
Red List: Endangered (EN)
GB Status: Nationally Rare
Former Status: Red Data Book
Verification Grade:  Adult: 3
Rare unmistakable Pug, found only in Norfolk and Lincs.

UK Records for this species from 2000 onwards, sourced records from just two 10km squares (hectads), with a record of a singleton from one additional 10km square, all in Norfolk. Rediscovered at a Lincolnshire site in 2011.

Recent Norfolk records from just 3 hectads along the coast in recent years.

"Scarce Pug is not far off being a global endemic to Norfolk! Work on a European macro-moths red list has revealed only one area outside of England. In England, the Lincolnshire populations appear close to extinction (if not already extinct) so that just leaves the populations along the NW Norfolk coast. With rising sea levels / rapid coastal erosion, the Norfolk population may not be safe." T. Davis (BC) 2022

Larvae can be found from mid August to the start of September feeding on Sea Wormwood, a distinctive aromatic silver/blue plant, found along the edges of the Salt marsh on the North Norfolk coast.

S41 - UK BAP priority species.

Retained Specimen / Photograph will be Required.

Recorded in 5 (7%) of 74 10k Squares.
First Recorded in 1911.
Last Recorded in 2024.
Additional Stats

Latest 10 Records
25/06/2024128TF74Titchwell NNR
29/09/2023228TF74Titchwell NNR
06/09/20233128TF94Warham Greens
01/07/2023128TF74Titchwell NNR
20/06/2023428TF74Titchwell NNR
24/09/20221228TF74Titchwell NNR
Further info: Eupithecia extensaria
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