Class Scorpionida Latreille, 1810 - scorpions
   Order Scorpiones Koch, 1837 - scorpions
     Suborder Neoscorpionina Thorell & Lindström, 1885
       Infraorder Orthosterni Pocock, 1911
         Superfamily Vaejovoidea Thorell, 1876
           Family Superstitionidae Stahnke, 1940 see Family Superstitioniidae Stahnke, 1940
             Subfamily Typhlochactinae Mitchell, 1968 see Family Typhlochactidae Mitchell, 1968
               Genus Alacran Francke, 1982