35.041 Bryotropha desertella (Coast Moss-moth)
ws: 11-15mm; May-Aug; common in coastal sand-dunes in England & Wales, more scarce in Scotland
Bryotropha desertella §1 female
ID: Genital confirmation required.
B.politella/desertella are distinguished in the key in MBGBI4.2 on shape of the forewing apex - somewhat pointed in B.politella, more rounded in B.desertella; and in the female on forewing ciliary lines as follows: B.politella one ciliary line, B.desertella two or more ciliary lines.
Female genitalia: Posterior margin of S8 deeply excavate ventrally to more than half its length (the sides of the excavation parallel); signum a pleated sheet with 2 transverse ridges; signum longer than apophyses anterioires.
B.politella/desertella are distinguished in the key in MBGBI4.2 on shape of the forewing apex - somewhat pointed in B.politella, more rounded in B.desertella; and in the female on forewing ciliary lines as follows: B.politella one ciliary line, B.desertella two or more ciliary lines.
Female genitalia: Posterior margin of S8 deeply excavate ventrally to more than half its length (the sides of the excavation parallel); signum a pleated sheet with 2 transverse ridges; signum longer than apophyses anterioires.
§1 Winterton, Norfolk; 11/06/2015; female; fw 6.2mm; to light
§2 Bampton Grange, Cumbria; 05/07/2017; female; fw 6.2mm; to light
§3 Dungeness, Kent; 10/06/2019; female; fw 5.6mm
All images © Chris Lewis
§2 Bampton Grange, Cumbria; 05/07/2017; female; fw 6.2mm; to light
§3 Dungeness, Kent; 10/06/2019; female; fw 5.6mm
All images © Chris Lewis
Page published 01/09/2015 (§1) | §2 added 11/04/2018 | §3 added 14/02/2020
