Posted by sd on 13-01-2011 18:49
#1
UK, Suffolk, 2km from sea, grazing marshes nearby. 21.vi.2010
in sunshine on brick wall.
male, orange first antennal segment, abrupt enlarged eye facets -->
Hybomitra ciureai
Theo, on an earlier post you mention the dusting on the scutellum as helping with the id for
ciureai, could you state what to look for - its not mentioned in publications I've seen.
I see female
H. ciureai and
distinguenda in almost equal numbers and plenty of male
H. distinguenda in swarms but male
ciureai are much harder to find.
Steve
Edited by sd on 13-01-2011 19:22
Posted by Zeegers on 14-01-2011 09:35
#5
-1) Yes, this is male ciureai
-2) scutellum, mentioned in the dutch (= mine) key, but you don't read dutch, I guess:
looking very obliquely from behind, scutellum of ciureai is completely greyish, whereas muehlfeldi and bimaculata has a black tip. Not sure if this is true in males as well.
-3) Males of muehlfeldi and distinguenda are excellent and persistent hovers, males ciureai don't hover but sit on leaves on the look-out. You can find males ciureai at warmer evenings (if you have any in UK) at light
Theo