O.K. Kelly, inquiring minds want to know. Was that one that you saw P. tricuspis or P. curvatis?
Based on the originally linked article, I'd say neither - since the fly that I observed was parasitizing a foraging worker....
"Previously released phorid flies only preyed on ants in disturbed mounds. In contrast, the species,
Pseudacteon obtusus,
that Ludwig released in April
is attracted to foraging red imported fire ants and not disturbed mounts."
