Geometridae : Ennominae
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Photo © Will Brame,  Taken at light by N.Odin at Landguard Bird Observatory 13/09/2020

Immature stages

Similar Suffolk Species
August Thorn
Ennomos quercinaria
Canary-shouldered Thorn
Ennomos alniaria
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Large Thorn
Ennomos autumnaria
(Werneburg, 1859) 1911 / 70.232

Morley's Final Catalogue: Not known from the county in Morley's time. First Suffolk records in the 1970s.

Recent Suffolk Status: Immigrant and transitory resident.

Life history: Single-brooded. Has become quite scarce in recent years with few records.

Identification: Much larger than other thorns. August thorn holds wings flatter when at rest. Canary-shouldered thorn has the bright yellow thorax.

Habitat: Woodlands, scrub, gardens.

Recorded in 25 (43%) of 58 10k Squares.
First Recorded in 1946.
Last Recorded in 2023.
Additional Stats

< Lilac Beauty  |  August Thorn >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
16/09/2023125TM24 - Woodbridge/Martlesham
13/09/2020125TM23 - Felixstowe/Landguard Point
31/08/2019126TL78 - Brandon/Lakenheath
02/10/2015125TM33 - Bawdsey/Felixstowe
18/09/2015125TM33 - Bawdsey/Felixstowe
 Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Large Thorn
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Copyright © Jim Wheeler 2024
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 21-28mm.
Flight: One generation Sept-Oct.
Foodplant:   Broadleaved trees
Red List: Near Threatened (NT)
GB Status: Common
Former Status: Nationally Scarce B
Verification Grade:  Adult: 2
 Immature Adult
Further info: Ennomos autumnaria
 
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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ - Suffolk 2024. © James Wheeler - Norfolk Moths 2007 - 2024. Data © NOLA™ - Suffolk 2024
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