GELECHIIDAE | Gelechiinae | Gnorimoschemini
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35.120 Scrobipalpa artemisiella (Thyme Moth)
ws10-12mm (MBGBI4.2); Jun-Jul; thyme (Thymus polytrichus); NS-B on sandhills, limestone slopes and machair throughout GB
ID: It is possible that this species can be identified without genital dissection from its small size ferruginous streaks and prominent dark stigmata (and I was specifically looking for it on wild thyme) - but the forewing markings are variable and the size does overlap with some other Scrobipalpa species.
Male genitalia: Coremata present; posterior margin of uncus not distinctly notched; saccus less than 2x length of pedunculus; apical arc of aedeagus narrow; posterior process of vinculum not distinctly shorter than succulus; posterior process of vinculum slender.
The male genitalia of S.artemisiella and S.stangei are indistinguishable. S.stangei is larger (ws 14-16mm); occurs in saline habitats; has only occurred in GB on the Isle of Wight and not since the 19th century.
Male genitalia: Coremata present; posterior margin of uncus not distinctly notched; saccus less than 2x length of pedunculus; apical arc of aedeagus narrow; posterior process of vinculum not distinctly shorter than succulus; posterior process of vinculum slender.
The male genitalia of S.artemisiella and S.stangei are indistinguishable. S.stangei is larger (ws 14-16mm); occurs in saline habitats; has only occurred in GB on the Isle of Wight and not since the 19th century.
Dissection
Male genitalia
§1 Knipe Scar, Cumbria; 13/06/2017; male; fw 4.6mm; potted on wild thyme
All images © Chris Lewis
All images © Chris Lewis
Page published 15/01/2018 (§1)