ws |
fw |
flight |
time |
8-9.5 |
Jun-Aug |
? |
|
lfp |
habitat |
distribution |
status |
rosaceae |
fen, damp woodland |
sE, w&c.S |
local |
ID: Group C: Plain; antenna fuscous in scape and basal 2 (♂) or 4 (♀) segments of flagellum, remainder white ringed fuscous; medial aspect of labial palp fuscous; medial aspects of hindtibia and hindtarsus whitish.
Most similar to C.ahenella which is larger (ws 10-13mm, has the scape only fuscous, and has buff medial aspects of the labial palps and hindtibiae.
Male genital key: Sacculus with a convex anterolateral margin, without a distinct anterolateral angle or projection and ending bluntly; valvula projects only a little beyond apex of sacculus.
C.potentillae, C.ahenella and C.binderella have very similar genitalia. C.binderella is best distinguished by its ferruginous forewing, (the other two species being shining fuscous), but it also has a more pointed saccular apex. MBGBI3 comments that the male genitalia of C.potentillae and C.ahenella may be separable on details of the apex of the sacculus and cornuti, but doesn't offer any description of the distinguishing features.
C.potentillae, C.ahenella and C.binderella have very similar genitalia. C.binderella is best distinguished by its ferruginous forewing, (the other two species being shining fuscous), but it also has a more pointed saccular apex. MBGBI3 comments that the male genitalia of C.potentillae and C.ahenella may be separable on details of the apex of the sacculus and cornuti, but doesn't offer any description of the distinguishing features.
Female genital key: Ductus bursae with distinct spiculation extending from antrum for ~⅓ length of ductus; signum very large (spike >½ length of corpus bursae); antrum parallel-sided