Posted by andrewsi on 12-06-2015 22:33
#1
These were actively flying in and out of a pile of birch logs on heathland yesterday in East Yorkshire, UK. Am I anywhere close with Orfelia nigricornis?
Posted by John Carr on 13-06-2015 01:55
#4
I agree with Orfeliini.
Orfelia should have "branches of M and CuA bare above" and "tibia with about 6 rows of setae much more closely set than others, appearing as conspicuous black lines." If your fly has both characters other genera should be ruled out.
Posted by andrewsi on 13-06-2015 06:32
#5
Thanks, John...Orfelia it is.