Ophiocordyceps unilateralis Dead ants infected with Ophiocordyceps unilateralis Scientific classification Kingdom: Fungi Division: Ascomycota Class: Sordariomycetes Order: Hypocreales Family: Ophiocordycipitaceae Genus: Ophiocordyceps Species: O. unilateralis Binomial name Ophiocordyceps unilateralis (Tul.) Petch (1931) Synonyms[1] Torrubia unilateralis Tul. (1865) Cordyceps unilateralis (Tul.)