Class Scorpionida Latreille, 1810 - scorpions
   Order Scorpiones Koch, 1837 - scorpions
     Suborder Neoscorpionina Thorell & Lindström, 1885
       Infraorder Orthosterni Pocock, 1911
         Superfamily Scorpionoidea Latreille, 1802
           Family Ischnuridae Simon, 1879, nom. rej. see Family Liochelidae Fet & Bechly, 2001 (1879)
             Subfamily Ischnurinae Simon, 1879, nom. rej. see Subfamily Liochelinae Fet & Bechly, 2001 (1879)
               1 Genus Hadogenes Kraepelin, 1894
               2 Genus Chiromachetes Pocock, 1899
               3 Genus Cheloctonus Pocock, 1892
               4 Genus Opisthacanthus Peters, 1861
               5 Genus Chiromachus Pocock, 1893
               6 Genus Iomachus Pocock, 1893
               7 Genus Liocheles Sundevall, 1833