Geometridae : Ennominae
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Photo © Michael Southall,  Norchard, Worcs 18/8/2010

Similar West Midlands Species
September Thorn
Ennomos erosaria
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August Thorn
Ennomos quercinaria

(Hufnagel, 1767) 1912 / 70.233

An uncommon resident, more often in the south.

A species of woodland, parkland, gardens.

Overwinters as an egg, adults come to light.

Note Cannot use flight time to separate from September Thorn as both can occur in July! The outer cross-line is usually kinked where it meets the leading edge of the wing - not so in September Thorn. Inner cross-line of August has a longer, and more pronounced angle where it meets the wing edge. Also August holds its wings at a lower angle

Recorded in 81 (58%) of 140 10k Squares.
First Recorded in 1869.
Last Recorded in 2019.
(Data up to end 2019)
Additional Stats

Forewing: 18-22mm
Flight: August - September
Foodplant:   Oaks
Nat Status: Local
Verification Grade:  Adult: 1
< Lilac Beauty  |  Canary-shouldered Thorn >
List Species Records   [Show All Latest]
Latest 5 Records (data up to end 2019)
Date#VC10k Area
27/09/20191VC36 - HerefordshireSO34
16/09/20191VC36 - HerefordshireSO34
15/09/20191VC37 - WorcestershireSP06
12/09/20191VC36 - HerefordshireSO34
11/09/20191VC36 - HerefordshireSO34

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