#1
Dear all
This small onde ia from ParaĆba, Brazil.
One of the smallest flies I have seen (about 0.7mm).
Sorry for the photo quality.
#3
The spur under the fore femur suggests Anthomyzidae. Check that family first.
According to Manual of Central American Diptera similar Drosophilidae and
Stenomicra can be distinguished by head structure (hairs on arista and face).