This is my 2nd companion post to the one taken 40 seconds later below:
As discussed in the remarks there, in the field I had thought that these two flies were the same individual. (I only saw one at a time, perhaps the 1st flew off and the 2nd flew in while I was looking at my first photo on the camera display?) But this one is clearly a different individual. In particular, this one has pilose eyes...so if it's indeed in the tribe Minthoini, I think this must be Paradidyma
My best try at working through Reinhard's 1934 male and female keys to Paradidyma
here led to P. armata
(from Peru) if I took this to be a male, and landed me at P. setigera
if taken to be a female. But that doesn't seem to be a clear result, as the terminal couplet leading to P. setigera
"third antennal segment as wide as parafacial;...costal spine longer than small cross vein"
...which doesn't seem to fit to me. The brief description here
doesn't give me confidence in that ID either. So I'm kind of stuck here.