37.083 Coleophora saxicolella (Orache Case-bearer)
ws: 13-16mm; Jul-Aug; Orache (Atriplex spp), goosefoot (Chenopodium spp); locally common throughout Britain
Coleophora saxicolella §1 female
ID: Keyed from Group D: Forewing obscurely streaked, with pale costa. Streaks overlaid with scattered fuscous scales > 4 species
Most similar to C.sternipenella which averages smaller (ws 10.5-15mm) and is usually less heavily marked with fuscous scales and according to the key in MBGBI3 its veins are less distinct.
Male genitalia: Lateral margin of sacculus finely crenulate; transtilla with scabrid area (smooth in C.sternipennella); aedeagus with tooth about its own width distant from end of prong (tooth almost reaches end of prong in C.sternipennella).
Female genitalia: Bursa copulatrix with a standard thorn and a linear spiculate patch; proximal ductus bursae heavily spiculate; incision in posterior margin of subgenital plate broad, shallow and 'U'-shaped ('V'-shaped in C.sternipennella).
Most similar to C.sternipenella which averages smaller (ws 10.5-15mm) and is usually less heavily marked with fuscous scales and according to the key in MBGBI3 its veins are less distinct.
Male genitalia: Lateral margin of sacculus finely crenulate; transtilla with scabrid area (smooth in C.sternipennella); aedeagus with tooth about its own width distant from end of prong (tooth almost reaches end of prong in C.sternipennella).
Female genitalia: Bursa copulatrix with a standard thorn and a linear spiculate patch; proximal ductus bursae heavily spiculate; incision in posterior margin of subgenital plate broad, shallow and 'U'-shaped ('V'-shaped in C.sternipennella).
Dissection
Male genitalia
Female genitalia
§1 Westcliff-on-sea, Essex; 24/08/2010; female; fw 6.3mm
§2 Westcliff-on-sea, Essex; 14/08/2010; fw 6.6mm
§3 Westcliff-on-sea, Essex; 11/08/2012; fw 6.9mm
§4 Foulness, Essex; 19/08/2012; female
§5 Foulness, Essex; 05/08/2012; female
§6 Winterton, Norfolk; 06/08/2015; male; fw 7.2mm; to light
§7 Foulden Common, Norfolk; 14/08/2016; female
All images © Chris Lewis
§2 Westcliff-on-sea, Essex; 14/08/2010; fw 6.6mm
§3 Westcliff-on-sea, Essex; 11/08/2012; fw 6.9mm
§4 Foulness, Essex; 19/08/2012; female
§5 Foulness, Essex; 05/08/2012; female
§6 Winterton, Norfolk; 06/08/2015; male; fw 7.2mm; to light
§7 Foulden Common, Norfolk; 14/08/2016; female
All images © Chris Lewis
Page published Mar 2011 | Specimen §3 added and text amended 14/08/2012 | Specimen §4 added 24/08/2012 | §5 added 09/02/2013 |
§6 added 13/01/2016 | §7 added and §4&5 removed (replaced by better images) 17/04/2017
§6 added 13/01/2016 | §7 added and §4&5 removed (replaced by better images) 17/04/2017
