Geometridae : Ennominae
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Photo © Roger Prue,  Hemel Hempstead, Hertfordshire (19/05/20)

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Grey Birch
Aethalura punctulata

([Denis & Schiffermüller], 1775) 1951 / 70.274

General comments:
Extremely local resident. Declining. Species of Conservation Concern.

This moth was regarded as being `stable` at the end of 2006, but since then it has been lost, apparently, from half of the sites where it has ever been recorded (33 current sites; 32 lost sites). It is associated with mature birch (Betula) trees and may not be able to thrive on younger plants. Modern woodland management methods are, distressingly, usually based on botanical notions with scant regard for any species that is not large and flamboyant (birds and mammals). Birch is perceived as a `nursery` species and mature examples are removed from woodland as a deliberate policy - usually just as they are getting old enough to support this and other moth species.

Recorded in 21 (51%) of 41 10k Squares.
First Recorded in 1918.
Last Recorded in 2021.
Additional Stats

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List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
08/06/2021121TQ29 - Barnet / Finchley
19/05/2020120TL00 - Hemel Hempstead
11/05/2018120TL30 - Hoddesdon / Cheshunt
11/05/2018120TL30 - Hoddesdon / Cheshunt
18/06/2017120TL21 - Welwyn Garden City
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Grey Birch
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VC20 VC21 VC21 VC20
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Forewing: 13-16mm.
Flight: One generation May-June.
Foodplant:   Downy and Silver Birch, Alder
Red List: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 2
 Immature Adult   [Show Flight Weeks]
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