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Costaconvexa polygrammata (Borkhausen, 1794)
Geometridae: Larentiinae
1741 / 70.058
Photo © Barry Spence, 27 Jul 2006,  TA4115: Spurn, VC61

Similar Yorkshire Species
Oblique Striped
Phibalapteryx virgata
Oblique Carpet
Orthonama vittata
Forewing: 11-12mm.
Flight: probably two gens. Apr-Sep
Foodplant:   Bedstraws.
Red List: Regionally Extinct (RE)
GB Status: Extinct / Immigrant
Former Status: Rare Immigrant Former resident
Verification Grade:  Adult: 3

Yorkshire Status: Very rare and very local. No recent record.

Sutton & Beaumont, 1989: This species was included in the last list (YNU, 1970) as not having been recorded since Porritt (1883-86). Porritt later suggested in his supplement (1904), that it had better be regarded in error unless confirmation was forthcoming. Since this did not happen we cannot now include this as a definite Yorkshire species.

Argus 52, 2006: An unexpected addition to the Yorkshire list. A rare migrant with few records before this year. Along with many other migrant species, there were several records in the south of the country in 2006. VC61. Spurn, 27.7.2006 (BRS). NEW COUNTY RECORD.

Current status (CHF, 2011): Spurn 2006. A rare migrant with scattered coastal records. A former resident in the Fens in the 19th century.

Retained Specimen / Photograph will be Required.

Recorded in 3 (2%) of 200 10k Squares.
First Recorded in 2006.
Last Recorded in 2012.

Latest 5 Records
Date#VC10k Area
10/07/2012161TA32 - Withernsea
27/07/2006161TA41 - Kilnsea / Spurn Head
16/05/2006161TA31 - Skeffling / Easington
Further info: Costaconvexa polygrammata
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