Posted by John Carr on 07-07-2015 17:51
#3
It has the characters of Lauxaniidae -- complete subcosta, no subcostal break, no vibrissae, convergent postocellars, preapical dorsal bristles on tibiae. Many species have a tapered first flagellomere like your fly.
I found a similar fly online under the name
Sapromyza metallica. I don't know if it is closely related to Northern Hemisphere
Sapromyza.
Edited by John Carr on 07-07-2015 17:52