066 Scoparia pyralella

CRAMBIDAE | Scopariinae

63.066 Scoparia pyralella (Brown-spot Grey)

ws: 17-20mm (Goater), fw: 8-10mm (Sterling & Parsons) ; Jun; decaying vegetation; common throughout GB, less so in Scotland

Scoparia pyralella §1

ID: Fresh specimens with light brown stigmata and brownish (rather than grey or blackish) markings may be identified on external features.
Genital dissection will readily identify doubtful specimens
Male genitalia: Aedeagus with a single bundle of ~5 relatively fine cornuti, progressively longer from base to apex, arising from a linear base plate.
Female genitalia: Ductus bursae clearly narrower than antrum; posterior sclerotisation short, narrow; anterior sclerotisation short, discrete - total sclerotisation ~1/6 length of ductus bursae.
See Scopariinae ID for more information on identification of species from this subfamily.

Variation
Dissection
Male genitalia
Female genitalia

§1 Foulness, Essex; 08/06/2008; fw 10.1mm
§2 Foulness, Essex; 29/06/2008; fw 8.7mm
§3 Cyffdy Farm, Gwynedd; 24/06/2010; female; fw 8.9mm
§4 Mull; 27/06/2011; female; fw 8.0mm
§5 Mull; 27/06/2011; male; fw 8.9mm
§6 Removed (misidentification)
§7 Winterton, Norfolk; 09/07/2015; female; fw 8.0mm
§8 Loch Rannoch, Perthshire; 15/06/2021; male; fw 8.6mm
§9 Eskadale, Inverness-shire; 25/06/2022; male; 8.8mm
All images © Chris Lewis