49.265 Eucosma cana (Hoary Tortrix)
ws: 15-23mm; Jun-Aug; thistles (Carduus spp / Cirsium spp), common knapweed (Centaurea nigra); common throughout GB
Synonym: Catoptria cana (Pierce & Metcalfe)
Synonym: Catoptria cana (Pierce & Metcalfe)
Eucosma cana §1 female
ID: Distinguished from E.hohenwartiana by the presence of longitudinal white streaks in the forewing.
Male genitalia: valva with short cucullus with little development of the lobe; neck long and broad; ventral edge of sacculus more sinuate than angulate. However these valval features do seem to be somewhat variable - see §5 in the gallery below.
Male genitalia: valva with short cucullus with little development of the lobe; neck long and broad; ventral edge of sacculus more sinuate than angulate. However these valval features do seem to be somewhat variable - see §5 in the gallery below.
§1 Cyffdy Farm, Gwynedd; 22/06/2010; female
§2 Foulness, Essex; 12/06/2011; male; fw 10.3mm
§3 Nethybridge, Inverness-shire; 12/07/2011; male; fw 10.3mm
§4 Strumpshaw Fen, Norfolk; 24/07/2012; male
§5 Romansleigh, Devon; 24/06/2016; male; fw 7.6mm
§6 Bampton Grange, Cumbria; 09/07/2017; female; fw 6.7mm
§7 Pound Wood, Essex; 23/07/2019
All images © Chris Lewis
§2 Foulness, Essex; 12/06/2011; male; fw 10.3mm
§3 Nethybridge, Inverness-shire; 12/07/2011; male; fw 10.3mm
§4 Strumpshaw Fen, Norfolk; 24/07/2012; male
§5 Romansleigh, Devon; 24/06/2016; male; fw 7.6mm
§6 Bampton Grange, Cumbria; 09/07/2017; female; fw 6.7mm
§7 Pound Wood, Essex; 23/07/2019
All images © Chris Lewis
Page published 28/01/2013 (§1-4) | §5 added 24/02/2017 | §6 added 12/04/2018 | §7 added 01/03/2020
