49.271 Eucosma rubescana (Rufous Saltern Tortrix
ws: 16-20mm; Jun-Jul; sea aster (Aster tripolium); pRDB saltmarsh in Kent, Essex & Suffok
Synonym: Eucosma catoptrana (BTM)
Synonym: Eucosma catoptrana (BTM)
Eucosma rubescana §1 male
ID: Similar to E.tripoliana which also occurs in saltmarsh habitat. The two species can be fairly reliably distinguished on size, E.tripoliana being smaller (ws 13-17mm), but there is some overlap. E.tripoliana is better marked - perhaps best seen in the costal strigulae towards the apex; which in E.rubescana are grey, faint and short with little if any development of plumbeous striae and in E.tripoliana yellow-brown with some fuscous overlay, distinct, longer and with distinct development of plumbeous striae.
§1 Foulness, Essex; 08/06/2008; male; fw 9.5mm
§2 Foulness, Essex; 30/05/2020; female; fw 8.1mm; netted by day on saltmarsh
All images © Chris Lewis
§2 Foulness, Essex; 30/05/2020; female; fw 8.1mm; netted by day on saltmarsh
All images © Chris Lewis
Page published 26/01/2013 (§1) | §2 added 10/06/2020
