Posted by Igor Grichanov on 04-11-2016 11:11
#1
Sciaridae (?) Baltic amber
Edited by Igor Grichanov on 04-11-2016 12:44
Posted by John Carr on 05-11-2016 00:06
#3
I think Chironomidae is more likely, but I'm not sure. Most Ceratopogonidae have a conspicuous second branch of vein M.