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 Chelicerata Heymons, 1901
               Class Arachnida Lamarck, 1801
                 Order Araneae Clerck, 1757 - spiders
                   Suborder Labidognatha see Infraorder Araneomorphae Smith, 1902
                     Superfamily Argiopiformia
                       Family Theridiidae Sundevall, 1833 - cobweb and widow spiders
                         Genus Latrodectus Walckenaer, 1805
                           Latrodectus mactans (Fabricius, 1775)