Posted by Eric Fisher on 17-02-2019 21:22
#5
Yes, I now can see that this is a Plesiomma sp. I haven't been able to open the supplemental images that Diego sent (show view of face?) but after Chris mentioned this genus, the overall shape & impression now says "Plesiomma" to me also. Cystoprosopa is a closely related genus but has a 'fatter' head and shorter antennae than this fly.
Cheers, Eric