Nysius
Nysius is a genus of false chinch bugs in the family Lygaeidae. At least 100 described species are placed in Nysius.
Like other seed bugs, some species in the genus have proven to be crop pests of wheat and other grains, as well as many vegetables. A unique Hawaiian radiation of the genus contains almost a quarter of the world's species, as well as the most diverse character set seen in the genus. In addition, two closely related species found on Mauna Loa and Mauna Kea on the island of Hawai'i, are different from the rest of Nysius by exhibiting reduced nonfunctional wings, and feed on dead and dying insects.
Species
The genus contains the following species:Nysius aa Polhemus, 1998Nysius abnormis Usinger, 1942Nysius albipennis Distant, W.L., 1913Nysius angustatus Uhler, 1872Nysius angustellus Nysius atlantidum Horváth, 1890Nysius baeckstroemi Bergroth, 1924Nysius beardsleyi Ashlock, 1966Nysius blackburni White, 1881Nysius caledoniae Distant, 1920Nysius cargadosensis Distant, W.L., 1909Nysius ceylanicus Nysius chenopodii Usinger, 1942Nysius coenosulus Stål, 1859Nysius communis Usinger, 1942Nysius contiguus Walker, 1872Nysius convexus Nysius cymoides Nysius dallasi White, 1878Nysius delectulus Perkins, 1912Nysius delectus White, 1878Nysius dohertyi Distant, W.L., 1904Nysius ephippiatus Spinola, 1852Nysius ericae Nysius erythynus Fernando, 1960Nysius euphorbiae Horvath, G., 1910Nysius eximius Stal, 1858Nysius expressus Distant, 1883Nysius femoratus Van Duzee, E.P., 1940Nysius feuerborni China, W.E., 1935Nysius frigatensis Usinger, 1942Nysius fucatus Usinger, 1942Nysius fullawayi Usinger, 1942Nysius fuscovittatus Barber, 1958Nysius gloriae Baena & García, 1999Nysius graminicola Nysius grandis Baker, 1906Nysius groenlandicus Nysius haeckeli Nysius hardyi Ashlock, 1966Nysius helveticus Nysius hidakai Nakatani, 2015Nysius huttoni White, F.B., 1878Nysius immunis Nysius inconspicuus Distant, 1903Nysius insoletus Barber, 1947Nysius irroratus Nysius kinbergi Usinger, 1959Nysius lacustrinus Distant, 1909Nysius latus Wagner, 1958Nysius lichenicola Kirkaldy, 1910Nysius liliputanus Eyles & Ashlock, 1969Nysius longicollis Blackburn, 1888Nysius melanicus Distant, W.L., 1909Nysius minor Distant, W.L., 1909Nysius mixtus Usinger, 1942Nysius monticolus Distant, 1893Nysius neckerensis Usinger, 1942Nysius nemorivagus White, 1881Nysius niger Baker, 1906Nysius nigricornis Kerzhner, 1979Nysius nihoae Usinger, 1942Nysius nubilus Dallas, W.S., 1852Nysius oceanicus Usinger, R.L., 1937Nysius orarius Malipatil, 2005Nysius pacificus China, 1930Nysius pallipennis Walker, F., 1872Nysius palor Ashlock, 1963Nysius paludicola Barber, 1949Nysius paludicolus Barber, H.G., 1949Nysius picipes Usinger, R.L., 1937Nysius pilosulus Horvath, 1904Nysius plebejus Nysius procerus Distant, 1893Nysius puberulus Berg, 1895Nysius pulchellus Stal, C., 1859Nysius punctipes Stal, C., 1856Nysius raphanus Howard, 1872Nysius rhyparus Stål, 1859Nysius rubescens White, 1881Nysius salti Usinger, R.L., 1952Nysius sanctaehelenae White, F.B., 1877Nysius scutellatus Dallas, 1852Nysius senecionis Nysius simulans Stål, 1859Nysius spectabilis Distant, 1901Nysius steeleae China, W.E., 1934Nysius stratus Scudder, 1890Nysius subcinctus Walker, F., 1872Nysius sublittoralis Perkins, 1912Nysius suffusus Usinger, 1942Nysius tasmaniensis Malipatil, 2005Nysius tenellus Barber, 1947Nysius terrae Scudder, 1890Nysius terrestris Usinger, 1942Nysius thymi Nysius transcaspicus Wagner, 1958Nysius tritus Scudder, 1890Nysius usitatus Ashlock, 1972Nysius vecula Scudder, 1890Nysius veculus Scudder, S.H., 1890Nysius vinctus Scudder, 1890Nysius vinitor Bergroth, 1891Nysius vulcanorum Lindberg, H., 1958Nysius wekiuicola Ashlock & Gagne, 1983