Geometridae : Ennominae
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Photo © Dave Emley

Similar West Midlands Species
August Thorn
Ennomos quercinaria
Canary-shouldered Thorn
Ennomos alniaria
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September Thorn
Ennomos erosaria

([Denis & Schiffermüller], 1775) 1915 / 70.236

A common resident found throughout the region.

A species of woodland, parkland and gardens.

Overwinters as an egg and adults come readily to light.

Note August and September Thorns cannot be separated on flight period; they both come out in July. There is no kink in the outer cross-line where it meets the wing and it generally holds its wings at a steeper angle.

Recorded in 93 (66%) of 140 10k Squares.
First Recorded in 1867.
Last Recorded in 2019.
(Data up to end 2019)
Additional Stats

Forewing: 17-21mm
Flight: July - October
Foodplant:   Oaks, birches, limes, Beech
Nat Status: Common
Verification Grade:  Adult: 2
< Dusky Thorn  |  Early Thorn >
List Species Records   [Show All Latest]
Latest 5 Records (data up to end 2019)
Date#VC10k Area
13/10/20192VC36 - HerefordshireSO34
07/10/20191VC36 - HerefordshireSO34
04/10/20191VC36 - HerefordshireSO34
03/10/20191VC36 - HerefordshireSO34
01/10/20191VC36 - HerefordshireSO34

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