New Pseudacteon (Diptera: Phoridae) from North America That Parasitizes the Native Fire Ant Solenopsis geminata (Hymenoptera: Formicidae)

Abstract

A new species, Pseudacteon bifidus, is described from Travis County, TX. It differs from all other North American Pseudacteon species by the structure of the ovipositor in females and the shape of antennal flagellomere 1 in males. Females attack ants of the species Solenopsis geminata and have distinctive preoviposition behavior.