Posted by Elena Regina on 08-08-2021 20:27
#1
Lazio, 2021-VII, TBL 1.5 mm
Edited by Elena Regina on 27-08-2021 13:05
Posted by John Carr on 10-08-2021 18:00
#2
I would be surprised if you had fewer than a dozen species in Italy. I do not know of a guide to European species. The gall making Cecidomyiidae are normally identified by their galls. The others are identified by examination of males under a microscope.