Posted by djo on 03-09-2021 23:00
#1
Hi all!
Collected from broken branches in Sussex, Southern UK
What am I looking at?
Chymomyza caudatula males for the bottom two on the left? (on the UK list since 2019?)
What is top left and the two on the right? fuscimana? distincta? Something else?
Can I possibly tell without killing the fly? What character would I need to photograph?
Thanks!
Darren
Posted by Jan Maca on 04-09-2021 08:37
#2
The two lower flies in the left column are C. caudatula. The other four flies belong to the cluster of species which can be identified just according to subtle details of genitalia.