37.039 Coleophora hemerobiella (Black-stigma Case-bearer)
ws:12-15mm; Jul; rosaceous trees; NS - SE & SC.England
Coleophora hemerobiella §2 female
ID: This species is the first Coleophora to key out in the key given in MBGBI3: "Forewing appearing grey with a greyish fuscous stigma at end of discal cell". So keying this species depends on determining that the fw colour is grey, rather than white/whitish with scattered grey/fuscous scales and that the cluster of grey/fuscous scales at about 3/4 is a stigma. For specimen §1, I had not recognised a stigma or that fw ground colour was grey prior to identification from genital examination. In §2 the stigma is more apparent.
My key: Fw: not white (note contrast with white vertex), without longitudinal streaks or white markings; not metallic; antenna white ringed fuscous throughout; fw grey with scattered fuscous scales and usually a distinct stigma at end of discal cell > C.hemerobiella
The male genitalia are distinctive.
My key: Fw: not white (note contrast with white vertex), without longitudinal streaks or white markings; not metallic; antenna white ringed fuscous throughout; fw grey with scattered fuscous scales and usually a distinct stigma at end of discal cell > C.hemerobiella
The male genitalia are distinctive.
Dissection
Male genitalia
Female genitalia
Larval case
§1 Westcliff-on-sea, Essex; 03/08/2011; male; fw 6.7mm
§2 Foulness, Essex; 01/08/2015; female; fw 6.9mm; to light
§3 Cherry Orchard CP, Essex; emerged 04/07/2015 from a larval case collected 12/05/2015; male; fw 6.8mm
§4 Foulness, Essex; emerged 15/07/2018 from a larval case collected 20/05/2018; female; fw 6.5mm
All images © Chris Lewis
§2 Foulness, Essex; 01/08/2015; female; fw 6.9mm; to light
§3 Cherry Orchard CP, Essex; emerged 04/07/2015 from a larval case collected 12/05/2015; male; fw 6.8mm
§4 Foulness, Essex; emerged 15/07/2018 from a larval case collected 20/05/2018; female; fw 6.5mm
All images © Chris Lewis
Page published March 2011 (§1) | §2 added 26/08/2015 | §3 added 15/11/2015 | §4 added 07/03/219
