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Butterbur
Hydraecia petasitis Doubleday, 1847
Noctuidae: Xyleninae
2362 / 73.124
Photo © Raymond A Watson,  Hollesley

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Similar Species
Rosy Rustic
Hydraecia micacea
Forewing: 19-23mm.
Flight: One generation Aug-Sept.
Foodplant:   Butterbur.
Red List: Least Concern (LC)
GB Status: Nationally Scarce
Former Status: Local
Verification Grade:  Adult: 3
Status
Morley's Final Catalogue: Certainly very local, but not so rare as thought before 1890. Often singly at electric lights in Ipswich town (Mly, Pyett, Baylis, Platten teste W. H. Harwood); Waldringfield, at light in August 1931 (Wlr); taken several, and found work of larvae at Needham (L); larvae at Blaxhall believed to be this species (Hkr); abundant signs of its work in Butterburr-roots at Bury (Norgate, post 1890).

Recent Suffolk status: Very local in VC25. No recent records from VC26.

Life history: Single-brooded.

Identification: Rosy rustic is similar but is more pinkish in colour and is smaller.

Habitat: River valleys, coastal sites, normally not too far from patches of the foodplant.

Retained Specimen / Photograph will be Required.

Recorded in 12 (21%) of 58 10k Squares.
First Recorded in 1890.
Last Recorded in 2023.

Latest 10 Records
Date#VC10kArea
11/08/2023125TM25Wickham Market/Otley
07/08/2023+25TM34Hollesley/Rendlesham Forest
28/08/2022125TM33Bawdsey/Felixstowe
02/08/2022+25TM34Hollesley/Rendlesham Forest
02/09/2021+25TM34Hollesley/Rendlesham Forest
05/07/2021+25TM34Hollesley/Rendlesham Forest
17/08/2020125TM47Blythburgh/Dunwich
14/08/2020125TM25Wickham Market/Otley
30/07/2020+25TM34Hollesley/Rendlesham Forest
22/07/2020+25TM34Hollesley/Rendlesham Forest
Further info: Hydraecia petasitis
 
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