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Elachista alpinella
Marsh Dwarf Stainton, 1854
Elachistidae
599 / 38.028
Photo © Chris Knott,  Great Ellingham 10/09/2016

Similar Norfolk Species
Black-headed Dwarf
Elachista atricomella
Sweet-grass Dwarf
Elachista poae
Wingspan: 9-13mm.
Flight: June - Sept.
Foodplant:   Sedges, Greater Pond-sedge, Lesser Pond-sedge.
Nat Status: Nationally Scarce B
Verification Grade:  Adult: 4
Norfolk Status
Nationally scarce (Nb) in marshes, water-meadows and other damp areas throughout most of the British Isles.
Variable species with dark head and more incomplete inner fascia that should separate it from E. atricomella and E. kilmunella. Female seldom seen.

Gen. Det. rerquired to confirm any specimens.

Leaf-mine: Long slender downward gallery mine from the leaf tip, up to 60cm long.

[MBGBI vol3 p372]

Determination by Genitalia Examination (gen. det.) Required

Recorded in 12 (17%) of 69 10k Squares.
First Recorded in 1920.
Last Recorded in 2019.

Latest 5 Records
Date#VC10k Area
03/09/2019128TF92 - Fakenham/Ryburgh
16/06/2019128TL79 - Methwold/Foulden
10/09/2016128TM09 - Attleborough
10/09/2016227TM08 - Banham/Lopham
09/09/2016128TF92 - Fakenham/Ryburgh
Further info: Elachista alpinella
 
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