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Black Arches
Lymantria monacha (Linnaeus, 1758)
Erebidae: Lymantriinae
2033 / 72.010
Photo © Matthew Casey,  29/07/2017 - Hethersett

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Similar Species
Gypsy Moth
Lymantria dispar
Forewing: 18-28mm
Flight: One generation July - August
Foodplant:   Oak
Red List: Least Concern (LC)
GB Status: Common
Former Status: Local
Verification Grade:  Adult: 1
Status
Widespread and common.
Mature woodland, heathland, scrub and gardens with Oak.

Quite variable in extent of black markings, the male with large feathered antennae is also smaller than the female. Normally unmistakable, but the infrequent form f. eremita is entirely sooty grey.

The larvae feed in the spring on Oak (Quercus), and sometimes coniferous trees.

Recorded in 66 (89%) of 74 10k Squares.
First Recorded in 1861.
Last Recorded in 2023.

Latest 10 Records
Date#VC10kArea
30/09/2023727TG33Ridlington
15/09/2023127TM29Shotesham
11/09/2023127TG14Felbrigg / Runton
10/09/2023+27TG13Erpingham
09/09/2023127TG13Erpingham
08/09/2023127TG14Sheringham / Beeston
08/09/2023127TG32Neatishead / Barton Broad
04/09/2023+28TL99Hockham Heath / Cranberry Rough
02/09/2023127TG14Felbrigg / Runton
31/08/20232027TG33Ridlington
Further info: Lymantria monacha
 
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