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Scallop Shell
Rheumaptera undulata (Linnaeus, 1758)
Geometridae: Larentiinae
1789 / 70.121
Photo © Terry Box, 24 Jun 2017,  SE4672:Pilmoor, VC62

Similar Yorkshire Species: None
Forewing: 16-19mm
Flight: June - July
Foodplant:   Sallows, Aspen, Bilberry
Red List: Least Concern (LC)
GB Status: Common
Former Status: Local
Verification Grade:  Adult: 1

Yorkshire Status: Local resident.

This beautiful moth is a species of damp woodland and scrubby areas, the larvae feeding on sallows. Almost 90% of our records are of single moths, suggesting that it does not come strongly to light. It has probably never been particularly common in the county - Porritt labelled it "pretty but uncommon". Numbers in the county seem to be stable.

Sutton & Beaumont, 1989: There have recently been several records for this species from vice-counties 61, 63 and 64. Previously it had not been recorded since 1914 (YNU, 1970), although Walsh (1956) mentions several 'of late years'.

Recorded in 62 (31%) of 200 10k Squares.
First Recorded in 1883.
Last Recorded in 2024.
Additional Stats

Latest 5 Records
Date#VC10k Area
13/08/2024165SE19 - Leyburn / Catterick Garrison
29/07/2024162SE98 - Wykeham
29/07/2024162TA08 - Scarborough
23/07/2024165SE19 - Leyburn / Catterick Garrison
18/07/2024161SE64 - Wheldrake
Further info: Rheumaptera undulata
 
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