Geometridae : Ennominae
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Photo © Ian Gamble,  Berkhampstead, Hertfordshire (11/08/07)

Similar Herts & Middlesex Species
Magpie Moth
Abraxas grossulariata
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Clouded Magpie
Abraxas sylvata

(Scopoli, 1763) 1885 / 70.206

General comments:
Extremely local and declining resident. Species of Conservation Concern.

Past records indicate this to have been a frequent species up to at least the 1950s, although plotting records on as map does not in fact support the notion that it was widespread. Certainly it has declined recently in terms of numbers, but we do not have adequate records to claim that the decline coincided with the Dutch Elm disease epidemic of the 1970s (though this seems at least likely to have been a contributing factor). Though English Elm is eaten by the larvae, present populations appear to be associated with Wych Elm - a species that generally survived the disease. The undisputed decline in population level may have been governed by other factors. Records exist for only five of the sixteen years form 2007 to 2023 and for each of those five there is but a single record.This is a species that is potentially heading for extinction in our two counties.

Recorded in 15 (37%) of 41 10k Squares.
First Recorded in 1888.
Last Recorded in 2022.
Additional Stats

< Magpie Moth  |  Clouded Border >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
18/07/2022120SP91 - Tring
25/07/2018120TL43 - Meesden / Barley
11/07/2014120TL00 - Hemel Hempstead
25/07/2013120TQ09 - Watford / Rickmansworth
26/07/2010120TL42 - Bishop's Stortford (N)
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Clouded Magpie
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VC20 VC21 VC21 VC20
Click Map for Details
Forewing: 18-22mm.
Flight: One generation May-July.
Foodplant:   Wych Elm, English Elm and Japanese Golden Elm
Red List: Least Concern (LC)
GB Status: Common
Former Status: Local
Verification Grade:  Adult: 1
 Immature Adult   [Show Flight Weeks]
© hertsmiddxmoths.uk 2024 NOLA®; Database using MapMate® Digital Maps © Bartholomew 2010. Design © Jim Wheeler 2024
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