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 Hymenopteria
                     Order Hymenoptera Linnaeus, 1758 - ants, bees, and wasps
                       Suborder Symphyta Gerstaecker, 1867 see Order Hymenoptera Linnaeus, 1758
                         Superfamily Siricoidea Billbergh, 1820 (Latreille, 1802)
                           1 Family Xiphydriidae Leach, 1819
                           2 Family Siricidae Billberg, 1820 - horntails
                           3 Family Syntexidae R.B. Benson, 1935 see Subfamily Syntexinae (Benson, 1935)