Geometridae : Larentiinae
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Photo © Rob Dyke,  Hockwold (garden) 14/07/12

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Immature stages

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Similar Norfolk Species: None
 
Marsh Carpet
Gagitodes sagittata
(Fabricius, 1787) 1810 / 70.140
=Perizoma sagittata
Norfolk status
Extremely Rare.
Wetland localities inc fens, marshes and wet meadows.
Established colony along the Norfolk and Suffolk border at Lakenheath Fen/Botany Bay, where it was rediscovered in 2002 (last recorded 1984) and is monitored annually by the SMG.

Almost as famous as the Hollly Blue for erratic population change, at one time thought to be extinct because of its absence from all sites from 1940 to mid 1950s after which it was reported from many of them from Nottinghamshire to the Broads. It remains unpredictable, it may have a run of years at one site and then vanish for as long. The moth is rarely seen and we depend for data upon its beautifully cryptically coloured larva on seedheads of Thalictrum (Meadow Rue) G. Haggett (NMS No.55, 1999)

Several old Norfolk records, and a few recent sightings of adults form Hockwold (close to the Suffolk colony at Lakenheath) along the Wensum valley and Norwich area.

Larvae rediscovered from a site in West Norfolk in 2010, the first larval records for decades! (J Wheeler, 2010) but not seen at the site since 2011. Larvae also recorded at a site in VC27 in 2013 and along a river in SW Norfolk 2019/2020.

Retained Specimen / Photograph will be Required.

Recorded in 19 (28%) of 69 10k Squares.
First Recorded in 1762.
Last Recorded in 2020.
Additional Stats

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Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
13/08/2020128Confidential
13/08/20201128Confidential
11/08/2020428Confidential
14/07/2020127TG11 - Drayton/Swannington
01/07/2020127TG11 - Drayton/Swannington
 Show Details | 1990 to 2020 | 2000 to 2020 | Graph Key
Express Record Marsh Carpet
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Copyright © Jim Wheeler 2021
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 13-17mm.
Flight: One generation June-July.
Foodplant:   Common Meadow-rue Lesser Meadow-rue (Ripening seeds)
Nat Status: Nationally Scarce A
Verification Grade:  Adult: 3
 Immature Adult
Further info: Gagitodes sagittata
 
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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ 2021. © James Wheeler - Norfolk Moths 2007 - 2021. Data © NOLA™ 2021
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