067 Eudonia lacustrata

CRAMBIDAE | Scopariinae

63.067 Eudonia lacustrata (Tawny Grey)

ws: 16-18mm (Goater), fw: 8-9mm (Sterling & Parsons); Jun-Jul; mosses; common south of Scottish Highlands
Synonym: Dipleurina lacustrata

Eudonia lacustrara §2 male

ID: usually, but not always, identifiable by the relatively clear whitish central part of the wing between the antemedian and postmedian lines. Specimens with heavy dark irroration of this areas will require confirmation by genital dissection.
Male genitalia: Valvae with a suggestion of a process at the distal end of the ventral margin; uncus notched; aedeagus without cornuti.
Female genitalia: Ductus bursae with 3 or 4 coils; signum large linear/ovate
See Scopariinae ID for more information on identification of species from this subfamily.

Dissection

Male genitalia

Female genitalia

§1 New Forest, Hampshire; 27/06/2008; fw 8.4mm
§2 Cyffdy Farm, Gwynedd; 25/06/2010; male
§3 Strumpshaw Fen, Norfolk; 26/07/2012; female; fw 8.0mm
§4 Arneside, Cumbria; 07/07/2012; male
§5 Silverdale, Lancashire; 18/06/2014; female; fw 8.1mm
§6 Bampton Grange, Cumbria; 12/09/2016; female; fw 7.2mm
§7 Seathwaite, Cumbria; 22/07/2016; male; fw 7.7mm
All images © Chris Lewis