Elachistidae
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Photo © Chris Lewis,  Sutton Fen, 12/08/2009. showing diagnostic angulation of the median fascia.

Similar Norfolk Species
Elachista poae
Sweet-grass Dwarf
Elachista atricomella
Black-headed Dwarf
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Elachista pomerana
Fen Dwarf

Frey, 1870605 / 38.035
Norfolk status
Endangered (proposed as a future Red Data Book species) Restricted to damp fenland in parts of East Anglia. Known from Stalham, Sutton Fen, Catfield Fen and Strumpshaw Fen in Norfolk, and Woodwalton Fen in Huntingdonshire.

The angulate fascia helps separate this species fromsimilar species except E. poae.

First recognized as British from specimens taken at Stalham, Norfolk in 1967 (E.C. Pelham-Clinton)

Leaf-mine: April (June, Aug)
Mine from leaf tip downwards covering full width of leaf at first, then irregular central line.

[MBGBI vol3 p378]

Determination by Genitalia Examination (gen. det.) Required

Recorded in 2 (3%) of 69 10k Squares.
First Recorded in 1967.
Last Recorded in 2018.
Additional Stats

Elachista subnigrella  |  Elachista humilis >

Determination
Elachista pomerana - Sutton Fen (J Clifton)
Elachista pomerana - Catfield Fen, Slide 1649 (J Clifton)
Elachista pomerana - Sutton Fen- Slide 1639 (J Clifton)
Norfolk Broads. Det J Clifton, Slide 1733
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
02/08/2018127TG32 - Stalham/Catfield
20/07/2016+27TG30 - Brundall/Cantley
19/07/2016127TG30 - Brundall/Cantley
23/07/2014127TG32 - Stalham/Catfield
02/06/2014127TG32 - Stalham/Catfield
Show Details | 1990 to 2018 | 2000 to 2018 |
Express Record Elachista pomerana
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Copyright © Jim Wheeler 2019
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 8-10mm.
Season: April - Sept. (3 gens?)
Foodplant:   Wood Small-reed, Smooth Meadow-grass, Reed Canary-grass, others
Nat Status: pRDB1
Verification Grade:  Adult: 4
 Immature Adult
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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ 2019. © James Wheeler - Norfolk Moths 2007 - 2019. Data © NOLA™ 2019
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