Posted by John Carr on 19-04-2012 19:17
#2
Chironomini.  If the body is 11 mm the wings should be about 6 mm.  Few genera are so large.  You have some green species of 
Chironomus in Europe.  Possibly this is one of them.
ID is often aided by a dorsal closeup of male terminalia.
 
Posted by evdb on 19-04-2012 20:00
#3
Thanks John.
Unhappily I did not have time to take another picture.
Next time ?
Edited by evdb on 21-04-2012 08:40