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Canary-shouldered Thorn
Ennomos alniaria (Linnaeus, 1758)
Geometridae: Ennominae
1913 / 70.234
Photo © Andy Banthorpe,  Lower Stondon 08/08/2005

Similar Bedfordshire 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.
Red List: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 1

Bedfordshire status
Common resident

Verification Grade Comment: Acceptable flight time in county: 10 July to 30 September - a photo will be required if reported outside these dates

Recorded in 19 (86%) of 22 10k Squares.
First Recorded in 1904.
Last Recorded in 2024.

Latest 5 Records
Date#VC10k Area
08/09/2024+30TL04 - Bedford (South), Kempston
28/08/2024130TL04 - Bedford (South), Kempston
20/08/2024+30TL04 - Bedford (South), Kempston
12/08/2024130TL13 - Shefford, Henlow, Shillington
09/08/2024+30TL04 - Bedford (South), Kempston
Further info: Ennomos alniaria
 
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