064 Scoparia ambigualis

CRAMBIDAE | Scopariinae

63.064 Scoparia ambigualis (Common Grey)

ws: 15-22mm (Goater), fw: 8-11mm (Sterling & Parsons); May-Aug; moss?; common throughout GB

Scoparia ambigualis §2 male

ID: a variable species easily confused with some of its congeners especially Eudonia truncicolella, E.murana, E.lineola, and S.basistrigalis.
Genital dissection readily identifies this species.
Male genitalia: Aedeagus with 2 strong (and another variable) cornuti, attached at their base.
Female genitalia: Ductus bursae clearly narrower than antrum; posterior sclerotisation short, narrow; posterior sclerotisation absent
See Scopariinae ID for more information on identification of species from this subfamily.

Variation
Dissection
Male genitalia
Female genitalia

§1 Hollesley, Suffolk; 13/06/2011; male; fw 9.7mm
§2 Hollesley, Suffolk; 13/06/2011; female
§3 Mull; 30/06/2011; male
§4 Kinlochleven, Argyll; 08/07/2011; female
§5 New Forest, Hampshire; 03/06/2012; male; fw 10.2mm
§6 Winterton, Norfolk; 11/06/2015; male; fw 10.1mm; to light
§7 Foulden Common, Norfolk; 23/05/2016; male; fw 9.4mm
§8 Bampton Grange, Cumbria; 12/06/2017; female; fw 9.4mm
§9 Orlestone Forest, Kent; 04/06/2019; male; fw 9.4mm
§10 Orlestone Forest, Kent; 18/05/2020; male; fw 9.6mm
All images © Chris Lewis