Hexapods - insects see Epiclass Hexapoda Latreille, 1825
   Class Insecta Linnaeus, 1758 - insects
     Subclass Dicondylia Haeckel, 1866
       Infraclass Pterygota Lang, 1888
         Division Neoptera Martynov, 1923
           Subdivision Pareneoptera nom. null. see Subdivision Paraneoptera
             Phthiraptera see Order Phthiraptera Haeckel, 1896
               1 Order Anoplura Leach, 1815 - sucking lice see Suborder Anoplura Leach, 1815
               2 Order Mallophaga Nitzsch, 1818 - biting lice see Order Phthiraptera Haeckel, 1896