Geometridae : Ennominae
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Early Thorn
Selenia dentaria

(Fabricius, 1775) 1917 / 70.237
Photo © Damian Money,  Marske, VC62

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Similar Yorkshire Species: None
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Yorkshire Status: Very common and widespread resident.

This is our commonest Thorn and is widespread across the county in two broods which do not overlap. It is an easy moth to identify as it is the only Thorn which rests with its wings held together. Moths from the second generation are smaller and paler. It is common in a variety of habitats and often visits gardens.

Sutton & Beaumont, 1989: Occurs locally in wooded areas in all five vice-counties. Occasionally noted as a wanderer in other habitats.

Recorded in 164 (82%) of 200 10k Squares.
First Recorded in 1846.
Last Recorded in 2023.
Additional Stats

< September Thorn  |  Lunar Thorn >
Forewing: 14-23mm
Flight: February - May and July - September
Foodplant:   Blackthorn, Hawthorn, Hazel, other woody plants
Red List Status: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 1
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
23/08/2023164SE44 - Wetherby / Tadcaster
21/08/2023162SE65 - York (E)
18/08/2023162NZ71 - Staithes
16/08/2023163SK59 - Maltby
15/08/2023162NZ61 - Guisborough
  Immature   Adult   [Show Flight Weeks]
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
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