However the Fire Ant Project at the University of Texas is releasing the fire ant's natural predator from Brazil - the tiny phorid fly – into the areas around Austin and Dallas. There are several species, but they all parasitize the fire ant in a terrifying process that involves eating the ant's brain (from the inside) by a larva implanted by the phorid fly.
imported red fire ant (solenopsis invicta)
The ants, despite being raised in North America where they have no predators, appear to have a instinctive fear of the fly. They respond with a panicked, defensive action that is usually ineffective.
The fly picks an ant that would make a good host, and then hovers above looking for a good moment. When opportunity allows, it will drop suddenly and stab the ant with its ovipositor and implant a single egg. When the egg hatches, it makes its way to the brain and larva will devour the ant's brain until it dies or its head falls off. Nice huh?