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Feathered Thorn
Colotois pennaria (Linnaeus, 1761)
Geometridae: Ennominae
1923 / 70.244

Similar Suffolk Species: None
Forewing: 19-23mm.
Flight: One generation Sept-Dec.
Foodplant:   Broadleaved trees.
Red List: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 1

Morley's Final Catalogue: Frequent everywhere in October, but little noted through the late date. Recently observed at Bentley Woods, freely at Ipswich lights: Aldeburgh (D), Belton (Wiltshire); annually at Monks Soham light in November 1907-34.

Recent Suffolk Status: Common.

Life history: Single-brooded. Larvae have been found fairly commonly in the county in the spring on various trees including Sallows and Crack willow.

Identification: Fairly unmistakeable, as no other species that flies late in the year looks similar.

Habitat: Various habitats including gardens.

Recorded in 50 (86%) of 58 10k Squares.
First Recorded in 1907.
Last Recorded in 2023.

Latest 5 Records
Date#VC10k Area
08/12/2023126TL97 - Hopton/Ixworth
28/11/2023125TM48 - Beccles/Brampton
23/11/20231126TL84 - Sudbury/Glemsford
23/11/2023126TM05 - Stowmarket/Needham Market
23/11/2023125TM13 - Brantham/Holbrook
Further info: Colotois pennaria
 
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