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Black Arches
Lymantria monacha (Linnaeus, 1758)
Erebidae: Lymantriinae
2033 / 72.010
Photo © Mike Dawson,  Lower Tasburgh 12th August 2012

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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 2024.
Additional Stats

Latest 10 Records
Date#VC10kArea
30/09/2024127TG33Ridlington
18/09/2024128TF63Dersingham
06/09/2024127TG10Cringleford (UEA)
05/09/2024127TG10Cringleford (UEA)
03/09/2024127TG32Neatishead / Barton Broad
02/09/2024+27TG31How Hill
02/09/2024128TF63Snettisham / Ingoldisthorpe
31/08/2024127TG04Cley next the Sea
30/08/20244127TG33Ridlington
30/08/2024127TG04Cley next the Sea
Further info: Lymantria monacha
 
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