Geometridae : Ennominae
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Photo © Dave Foot

Similar Dorset Species
September Thorn
Ennomos erosaria
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August Thorn
Ennomos quercinaria

(Hufnagel, 1767) 1912 / 70.233

Davey, P., 2009: A local species in Briatain but absent from northern Scotland, the larva feeding on beech (Fagus spp.), blackthorn (Prunus spp.), oak (Quercus spp.), birch (Betula spp.), hawthorn (Crateagus spp.) and a variety of other deciduous tree and shrub species. In Dorset, the moth is most often found in deciduous woods, preferring woodland containing beech; elsewhere the moth is rarely encountered. The national norm is a single brood between mid-August and mid-September, but in Dorset... Read More

Recorded in 29 (73%) of 40 10k Squares.
First Recorded in 1934.
Last Recorded in 2019.
(Data up to end 2019)
Additional Stats

Forewing: 18-22mm
Flight: August - September
Foodplant:   Oaks
Red List: Least Concern (LC)
GB Status: Common
BAP Status: Declining (Research only)
Former Status: Local
Verification Grade:  Adult: 1
< Large Thorn | Canary-shouldered Thorn >
List Species Records   [Show All Latest]
Latest 5 Records (data up to end 2019)
Date#VC10k Area
21/09/201929ST61 Sherborne
02/09/201919SY39 Lyme Regis
25/08/201919SY68 Weymouth / Martinstown
25/08/201919SY39 Lyme Regis
24/08/201919SY68 Weymouth / Martinstown

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