49.240 Epinotia immundana (Birch Tortrix)
ws: 12-14mm; Apr-Jun bivoltine in S.England Aug-Sep; alder (Alnus glutinosa), birch (Betula spp); locally common in woodland and heath throughout GB
ID: Varies considerably in extent of suffusion of the ground colour of the dorsal triangular mark, often obliterating it. Similar to but smaller and darker than E.tetraquetrana (ws 16-19mm).
§1 Newgale, Pembrokeshire; 17/05/2011; male; fw 6.8mm
§2 Strumpshaw Fen, Norfolk; 26/05/2012; male; fw 6.8mm §3 Westcliff-on-sea, Essex; 05/09/2012; male; fw 5.9mm §4 Strumpshaw Fen, Norfolk; 16/05/2013; male §5 Strumpshaw Fen, Norfolk; 16/05/2013; male §6 Strumpshaw Fen, Norfolk; 09/05/2014; male §7 Hockley Woods, Essex; 05/05/2014; female; fw 6.8mm §8 Strumpshaw Fen, Norfolk; 09/05/2014; male §9 Foulden Common, Norfolk; 11/04/2016; male All images © Chris Lewis |
§10 Strumpshaw Fen, Norfolk; 06/06/2016; male; fw 6.4mm
§11 Cranwich Heath, Norfolk; 15/05/2017; female; fw 6.6mm §12 Westcliff-on-sea, Essex; 11/08/2020 |
Page published 11/01/2013 (§1-3); §4&5 added 30/05/2013 | §6 added 23/07/2014 | §7 added 01/02/2015 | §8 added ?Feb 2015 |
§9 added 12/04/2017 | §10 added 06/06/2017 | §11 added 27/09/2017 | §12 added 06/02/2021
§9 added 12/04/2017 | §10 added 06/06/2017 | §11 added 27/09/2017 | §12 added 06/02/2021