Hover fly. It (and several others) seemed to be attracted to the bright green chairs.
No recuerdo la ubicación exacta. Fue en la vereda Márquez (la Calera-Cundinamarca)
For my own reference (note added 2/14/21):
https://www.researchgate.net/figure/FIGURES-1-11-Fragosa-Miranda-gen-nov-1-Fragosa-sp-INPA-DIP001362-female-habitus_fig1_343451268