Delphacidae is a family of planthoppers containing about 2000 species, distributed worldwide. Delphacids are separated from other "hoppers" by the prominent spur on the tibia of the hindleg. Diet and Pest species All species are phytophagous, many occurring on various grasses. Some species are significant pests and important vectors for cereal pathogens; for example: The rice brown planthopper, Nilaparvata lugens (Stål) The white-backed planthopper (rice), Sogatella furcifera (Horváth, 1899) The sugarcane planthopper, Perkinsiella saccharicida Kirkaldy, 1903 Subfamilies, tribes and selected genera Fulgoromorpha Lists On the Web includes the following tribes and genera (complete lists where tribe unassigned): Asiracinae Auth.: Motschulsky, 1863 Tribe Asiracini Motschulsky, 1863 Tribe Eodelphacini Emeljanov, 1995 Tribe Idiosystatini Emeljanov, 1995 Tribe Neopunanini Emeljanov, 1995 Tribe Platysystatini Emeljanov, 1995 Tribe Tetrasteirini Emeljanov, 1995 Tribe Ugyopini Fennah, 1979 Delphacinae Auth.: Leach, 1815 - world-wide, selected genera: Tribe Delphacini Leach, 1815 Aloha Kirkaldy, 1904 Criomorphus Curtis, 1833 Delphacinus Fieber, 1866 Delphacodes Fieber, 1866 (synonym Delphax Latreille, 1807) Javesella Fennah, 1963 Kakuna Matsumura, 1935 Megamelus Fieber, 1866 Metadelphax Wagner, 1963 Muellerianella Wagner, 1963 Muirodelphax Wagner, 1963 Nilaparvata Distant, 1906 Nothodelphax Fennah, 1963 Paraliburnia Jensen-Haarup, 1917 Prokelisia Osborn, 1905 Pseudaraeopus Kirkaldy, 1904 - synonym Delphacodes Melichar, 1901 Sogatella Fennah, 1956 Toya Distant, 1906 Xanthodelphax Wagner, 1963 Tribe Saccharosydnini Vilbaste, 1968 Lacertinella (Remes Lenicov & Rossi Batiz) 2011 Neomalaxa Muir, 1918 Pseudomacrocorupha Muir, 1930 Saccharosydne Kirkaldy, 1907 Tribe Tropidocephalini Muir, 1915 Tropidocephala Stål, 1853 Kelisiinae Auth.: Wagner, 1963 Anakelisia Wagner, 1963 Kelisia Fieber, 1866 Plesiodelphacinae Auth.: Asche, 1985 - neotropical Burnilia Muir & Giffard, 1924 Plesiodelphax Asche, 1985 Stenocraninae Auth.: Wagner, 1963 Embolophora Stål, 1853 Frameus Bartlett, 2010 Kelisicranus Bartlett, 2006 Obtusicranus Bartlett, 2006 Preterkelisia Yang, 1989 Proterosydne Kirkaldy, 1907 Stenocranus Fieber, 1866 - type genus Stenokelisia Ribaut, 1934 Tanycranus Bartlett, 2010 Terauchiana Matsumura, 1915 Vizcayinae Auth.: Asche, 1990 – SE Asia Neovizcaya Liang, 2002 Vizcaya Muir, 1917 - type genus Subfamily not placed †Amagua Cockerell, 1924 Epunka Matsumura, 1935 Eunycheuma Yang, 1989 Hikona Matsumura, 1935 Jugodina Schumacher, 1915 Lauriana Ren & Qin, 2014 Megamelodes Le Quesne, 1960 Nephropsia Costa, 1862 Sogatodes Fennah, 1963 Unkana Matsumura, 1935 References Fulgoromorpha Auchenorrhyncha families