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Elachista argentella
Swan-feather Dwarf (Clerck, 1759)
610 / 38.004
Photo © Raymond A Watson,  Hollesley, Suffolk.

Similar Suffolk Species
Sorrel Bent-wing
Opostega salaciella
Wingspan: 11-12 mm
Flight: May - Aug.
Foodplant:   Various grasses.
Nat Status: Common
Verification Grade:  Adult: 1

Morley’s Final Catalogue: Common on grasses everywhere in May and July. Noted at Bentley Woods, Ipswich, Hemley salterns, Aldeburgh, Dunwich, Southwold, Belton, Bradwell, on Gorleston palings; Tuddenham and Brandon. Especially common, sitting on grasses, in Monks Soham paddock on 11 June 1932. Abundant in the Southwold salt-marshes on 1 June 1905, named by Barrett; and taken in Monks Soham lanes in early June 1917, named by South (Mly)

Recent Status: A common British Elachista species that is easily recognised and hence commonly recorded in Suffolk.

Life Style: A single brooded species that comes to light flying between May and August. The larvae feed on a variety of grasses and will hibernate.

Identification: An all white species holding the wings tent-like in the Elachista fashion. The larvae mine downwards from the oviposition site near the tip of a grass stem. Hibernating larvae will do so in the mine. They leave the mine to pupate. More Info

Recorded in 30 (52%) of 58 10k Squares.
First Recorded in 1905.
Last Recorded in 2020.

Latest 5 Records
Date#VC10k Area
26/06/2020125TM49 - Somerleyton/Beccles
02/06/2020125TM28 - Mendham
02/06/2020225TM23 - Felixstowe/Landguard Point
31/05/2020125TM38 - Bungay/Rumburgh
27/05/2020125TM23 - Felixstowe/Landguard Point
Further info: Elachista argentella
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