73.216 Cosmia (Calymnia) trapezina (Dun-bar)
fw: 13-16mm (Waring & Townsend), ws: 28-38mm (MBGBI10); Jul-Sep; many broadleaved trees and shrubs, larger larvae becoming omnivorous; common throughout GB.
Cosmia trapezina (Dun-bar) §4 male
ID: Variable. Ground colour is usually some shade of brown, but may be greyish or reddish. Characterised by a fairly straight steeply diagonal antemedian line (cutting the dorsum nearer the termen) and a curved postmedian line (convex towards the termen). The median fascia between these lines is usually darker than the ground colour; kidney mark usually apparent and has a black dot at its dorsal margin. Enargia paleacea (Angle-striped Sallow) can show a similar pattern but is larger (fw 17-20mm) and the antemedian line is angled.
§1 Foulness, Essex; 21/07/2007
§2 Foulness, Essex; 21/07/2007
§3 New Forest, Hampshire; 26/07/2009
§4 Westcliff-on-sea, Essex; 08/07/2010; male; fw 15.0mm
§5 Westcliff-on-sea, Essex; 12/07/2013; male; fw 15.4mm
§6 Belfairs Woods, Essex; 13/07/2014; male; fw 14.6mm
§7 Seathwaite, Cumbria; 27/07/2016; male; fw 15.0mm
§8 Westcliff-on-sea, Essex; 05/07/2019; male
§9 Orlestone Forest, Kent; 16/08/2023; female; fw 15.2mm
All images © Chris Lewis
§2 Foulness, Essex; 21/07/2007
§3 New Forest, Hampshire; 26/07/2009
§4 Westcliff-on-sea, Essex; 08/07/2010; male; fw 15.0mm
§5 Westcliff-on-sea, Essex; 12/07/2013; male; fw 15.4mm
§6 Belfairs Woods, Essex; 13/07/2014; male; fw 14.6mm
§7 Seathwaite, Cumbria; 27/07/2016; male; fw 15.0mm
§8 Westcliff-on-sea, Essex; 05/07/2019; male
§9 Orlestone Forest, Kent; 16/08/2023; female; fw 15.2mm
All images © Chris Lewis
Page published 10/06/2016 (§1-6) | §7 added 02/07/2017 | §8 added 24/01/2020 | §9 added 22/12/2023
