Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Sordariomycetes O.E. Erikss. & Winka (1997)
       Subclass Hypocreomycetidae O.E. Erikss. & Winka (1997)
         Order Hypocreales Lindau (1897)
           Family Ophiocordycipitaceae G.H. Sung, J.M. Sung, Hywel-Jones & Spatafora (2007)
             1 Genus Drechmeria W. Gams & H.-B. Jansson (1985)
             2 Genus Harposporium Lohde (1874)
             3 Genus Hymenostilbe Petch (1931)
             4 Genus Ophiocordyceps Petch (1931), nom. protect.
             5 Genus Polycephalomyces Kobayasi (1941)
             6 Genus Purpureocillium Luangsa-ard, Hywel-Jones, Houbraken & Samson (2011)
             7 Genus Tolypocladium W. Gams (1971)