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Many-lined
Costaconvexa polygrammata (Borkhausen, 1794)
Geometridae: Larentiinae
1741 / 70.058
Photo © M F Stoyle, 16 May 2006,  TA397185: Easington, 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.

Many-lined was resident in the Cambridgeshire fens where the last record was 1879. It was not seen again in the UK until 1993 and has appeared as a rather irregular migrant on many occasions since then. Almost all records have been along the south and east coasts. There have been three records in Yorkshire, two on the Spurn peninsula and one a little further north at Withernsea. The first two in 2006 coincided with several records in the south of England. The third was in 2012. It would be easy to mistake this species for Oblique Carpet. Porritt mentions one at Scarborough in his 1993 list but later said this "had better be regarded as recorded in error, until confirmed by further undoubted specimens".

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.

Retained Specimen / Photograph will be Required.

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

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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