Michael Durham / Phorid Fly (Pseudacteon obtusus) female flies above Red Imported Fire Ants (Solenopsis invicta) searching for an ant to implant an egg which eventually kills the ant, the fly is now used to help contr...

Mark Moffett / Phorid fly attacks unsuspecting Leafcutter Ants (Atta cephalotes) working with heads buried in flower, French Guiana

Mark Moffett / Phorid fly attacks unsuspecting Leafcutter Ants (Atta cephalotes) working with heads buried in flower, French Guiana

Mark Moffett / Phorid fly attacks leaf carrying Leafcutter Ant (Atta cephalotes) the fly will lay an egg from which a parasitizing maggot will hatch, Belize

Piotr Naskrecki / Phorid Fly (Phoridae) laying eggs on leafcutter ant head, the developing larva will eventually decapitate the ant, Costa Rica

Mark Moffett / Phorid fly laying egg on back of unsuspecting Leafcutter Ant (Atta cephalotes) worker's head As the fly maggot grows it will consume the ant, French Guiana

Mark Moffett / Phorid fly laying egg on back of unsuspecting Leafcutter Ant (Atta cephalotes) worker's head As the fly maggot grows it will consume the ant, French Guiana

Mark Moffett / Phorid fly lays egg on head of Leafcutter Ant (Atta cephalotes) workers, as the egg hatches the maggot will consume the ant, Belize