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Canary-shouldered Thorn
Ennomos alniaria (Linnaeus, 1758)
Geometridae: Ennominae
1913 / 70.234
Photo © John And Judy Geeson

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Similar Norfolk Species
August Thorn
Ennomos quercinaria
Dusky Thorn
Ennomos fuscantaria
Forewing: 16-20mm.
Flight: One generation July-Oct.
Foodplant:   Downy and Silver Birch, Alder, limes, elms.
Nat Status: Common
Verification Grade:  Adult: 1
Norfolk Status
Named after the canary-yellow thorax.

Recorded in 67 (97%) of 69 10k Squares.
First Recorded in 1873.
Last Recorded in 2019.

Latest 5 Records
Date#VC10k Area
2019+27TG42 - Hickling/Horsey
03/10/2019127TG20 - Norwich
30/09/2019127TG04 - Blakeney/Cley
30/09/2019127TM49 - Geldeston/Haddiscoe
28/09/2019128TM09 - Attleborough
Further info: Ennomos alniaria
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