Posted by Juergen Peters on 21-05-2013 17:15
#1
Hello!
These 5 mm flies (mostly males) rested in large numbers on a turnpike over a forest path (northwest Germany).
Posted by javanerkelens on 21-05-2013 22:37
#3
I am thinking about
Hydrophoria ruralis (abdomen seems yellowish at base)
The arista should be relative long haired and scutellum covered with little hairs.......but not visible on this photos.
Johanna
Edited by javanerkelens on 21-05-2013 22:41
Posted by Michael Ackland on 22-05-2013 10:06
#4
One can just see the slightly paler abdominal basal segments, so I agree with Johanna. Tibiae are also slightly yellowish about middle.