Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Superphylum Articulata Cuvier see Supraphylum Articulata Cuvier
           Phylum Arthropoda Siebold, 1848 - arthropods
             Subphylum Tracheata
               Class Insecta Linnaeus, 1758 - insects
                 Subclass Pterygota Schott & Endl.
                   Superorder Hemipteria
                     Order Homoptera Leach, 1815 - plant bugs see Order Hemiptera Linnaeus, 1758
                       Suborder Aphidina Latreille, 1802 see Superfamily Aphidoidea Latreille, 1802
                         1 Family Lachnidae Herrich-Schaeffer, 1854 see Subfamily Lachninae Herrich-Schaeffer, 1854
                         2 Family Chaitophoridae see Subfamily Drepanosiphinae (Herrich-Schaeffer, 1857)
                         3 Family Callaphididae see Subfamily Drepanosiphinae (Herrich-Schaeffer, 1857)
                         4 Family Aphididae Latreille, 1802
                         5 Family Thelaxidae Baker, 1920 see Subfamily Thelaxinae Baker, 1920
                         6 Family Pemphigidae see Subfamily Pemphiginae (Koch, 1857)
                         7 Family Adelgidae (Annand, 1928) - adelgids
                         8 Family Phylloxeridae Herrich-Schaeffer, 1854