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Uncinus obductella
Marjoram Knot-horn (Zeller, 1839)
Pyralidae: Phycitinae
1444 / 62.013
Photo © Matthew Deans,  22/7/22 - Bawdsey

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Similar Species: None
Wingspan: 23-26 mm.
Flight: July - early August
Foodplant:   marjoram
Nat Status: Rare
Verification Grade:  Adult: 3
Status
Morley’s Final Catalogue: Not listed.

Recent Status: First recorded in Suffolk during 2022. A species that is resident very locally on chalk downland in the south of the UK. Populations appear to be increasing and spreading in recent years.

Life Style: A single brooded species that flies by day and night and will come to light. The larvae feed from a spinning on Origanum vulgare. The larvae overwinter and pupate in a tough cocoon on the ground.

Identification: Uncinus obductella is an attractively marked species with prominent erect palps. The forewings are a shade of reddish brown, being yellow towards the thorax, dorsum and costa and darker centrally along the wing. There are white scales that form into a sharply dentate pre median line and a series of dashes for the post median line. The termen is black spotted and there are two black spots placed longitudinally in the centre of the forewing. The discal one may have a second smaller spot in association with it closer to the costa.

Retained Specimen / Photograph will be Required.

Recorded in 4 (7%) of 58 10k Squares.
First Recorded in 2022.
Last Recorded in 2024.
Additional Stats

Latest 10 Records
Date#VC10kArea
27/07/2024125TM04Hadleigh
19/07/2024125TM34Hollesley/Rendlesham Forest
03/08/2023125TM34Hollesley/Rendlesham Forest
22/07/2022125TM33Bawdsey/Felixstowe
18/07/2022125TM24Woodbridge/Martlesham
Further info: Uncinus obductella
 
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