Geometridae : Geometrinae
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Photo © Ben Sale,  Bramfield Woods, Hertfordshire (24/07/20)

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Large Emerald
Geometra papilionaria

(Linnaeus, 1758) 1666 / 70.299

General comments:
Widespread but local resident.

The Large Emerald is mostly found in woodlands, and then usually in association with mature Birch trees. It usually attends light traps in very low numbers from midnight onwards and in spite of a perception that it is rare, the map shows that it is actually quite widespread. Fresh examples are striking, but after they have been on the wing for a few days they fade to near white and may not be immediately recognised by the inexperienced.

Recorded in 33 (80%) of 41 10k Squares.
First Recorded in 1887.
Last Recorded in 2023.
Additional Stats

< Grass Emerald  |  Blotched Emerald >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
17/09/2023120SP91 - Tring
27/07/2023120TL21 - Welwyn Garden City
13/07/2023120TQ09 - Watford / Rickmansworth
08/07/2023120TL10 - St Albans
08/07/2023120TL10 - St Albans
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Large Emerald
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VC20 VC21 VC21 VC20
Click Map for Details
Forewing: 24-29mm.
Flight: One generation. June-Aug.
Foodplant:   Downy Birch, Silver Birch, Hazel, Alder, (Beech)
Red List: Least Concern (LC)
GB Status: Common
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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