Tetragnatha és un gènere d'aranyes araneomorfes de la família dels tetragnàtids (Tetragnathidae). Fou descrita per Pierre André Latreille l'any 1804.Latreille, P. A. (1804b). Tableau methodique des Insectes. Nouveau Dictionnaire d'Histoire Naturelle, Paris 24: 129-295.
Les espècies d'aquest gènere es troben en tots els continents: Àsia, Oceania, Amèrica, Àfrica i Europa.
Taxonomia Segons el World Spider Catalog amb data de 15 de gener de 2019 hi ha les següents 349 espècies:
Tetragnatha acuta Gillespie, 1992 Tetragnatha aenea Cantor, 1842 Tetragnatha aetherea (Simon, 1894) Tetragnatha albida Gillespie, 1994 Tetragnatha americana Simon, 1905 Tetragnatha amoena Okuma, 1987 Tetragnatha anamitica Walckenaer, 1841 Tetragnatha andamanensis Tikader, 1977 Tetragnatha andonea Lawrence, 1927 Tetragnatha angolaensis Okuma & Dippenaar-Schoeman, 1988 Tetragnatha anguilla Thorell, 1877 Tetragnatha angulata Hogg, 1914 Tetragnatha anuenue Gillespie, 2002 Tetragnatha argentinensis Mello-Leitão, 1931 Tetragnatha argyroides Mello-Leitão, 1945 Tetragnatha armata Karsch, 1892 Tetragnatha atriceps Banks, 1898 Tetragnatha atristernis Strand, 1913 Tetragnatha australis (Mello-Leitão, 1945) Tetragnatha baculiferens Hingston, 1927 Tetragnatha bandapula Barrion-Dupo, Barrion & Heong, 2013 Tetragnatha beccarii Caporiacco, 1947 Tetragnatha bemalcuei Mello-Leitão, 1939 Tetragnatha bengalensis Walckenaer, 1841 Tetragnatha bicolor White, 1841 Tetragnatha bidentata Roewer, 1951 Tetragnatha biseriata Thorell, 1881 Tetragnatha bishopi Caporiacco, 1947 Tetragnatha bituberculata L. Koch, 1867 Tetragnatha boeleni Chrysanthus, 1975 Tetragnatha bogotensis Keyserling, 1865 Tetragnatha boninensis Okuma, 1981 Tetragnatha boydi O. Pickard-Cambridge, 1898 Tetragnatha brachychelis Caporiacco, 1947 Tetragnatha branda Levi, 1981 Tetragnatha brevignatha Gillespie, 1992 Tetragnatha bryantae Roewer, 1951 Tetragnatha caffra (Strand, 1909) Tetragnatha cambridgei Roewer, 1942 Tetragnatha caporiaccoi Platnick, 1993 Tetragnatha caudata Emerton, 1884 Tetragnatha caudicula (Karsch, 1879) Tetragnatha caudifera (Keyserling, 1887) Tetragnatha cavaleriei Schenkel, 1963 Tetragnatha cephalothoracis Strand, 1906 Tetragnatha ceylonica O. Pickard-Cambridge, 1869 Tetragnatha chamberlini (Gajbe, 2004) Tetragnatha chauliodus (Thorell, 1890) Tetragnatha cheni Zhu, Song & Zhang, 2003 Tetragnatha chinensis (Chamberlin, 1924) Tetragnatha chrysochlora (Audouin, 1826) Tetragnatha cladognatha Bertkau, 1880 Tetragnatha clavigera Simon, 1887 Tetragnatha cochinensis Gravely, 1921 Tetragnatha coelestis Pocock, 1901 Tetragnatha cognata O. Pickard-Cambridge, 1889 Tetragnatha confraterna Banks, 1909 Tetragnatha conica Grube, 1861 Tetragnatha crassichelata Chrysanthus, 1975 Tetragnatha cuneiventris Simon, 1900 Tetragnatha cylindracea (Keyserling, 1887) Tetragnatha cylindrica Walckenaer, 1841 Tetragnatha cylindriformis Lawrence, 1952 Tetragnatha dearmata Thorell, 1873 Tetragnatha decipiens Badcock, 1932 Tetragnatha delumbis Thorell, 1891 Tetragnatha demissa L. Koch, 1872 Tetragnatha dentatidens Simon, 1907 Tetragnatha desaguni Barrion & Litsinger, 1995 Tetragnatha determinata Karsch, 1892 Tetragnatha digitata O. Pickard-Cambridge, 1899 Tetragnatha eberhardi Okuma, 1992 Tetragnatha elongata Walckenaer, 1841 Tetragnatha elyunquensis Petrunkevitch, 1930 Tetragnatha esakii Okuma, 1988 Tetragnatha ethodon Chamberlin & Ivie, 1936 Tetragnatha eumorpha Okuma, 1987 Tetragnatha eurychasma Gillespie, 1992 Tetragnatha exigua Chickering, 1957 Tetragnatha exilima (Mello-Leitão, 1943) Tetragnatha exquista Saito, 1933 Tetragnatha extensa (Linnaeus, 1758) Tetragnatha fallax Thorell, 1881 Tetragnatha farri Chickering, 1962 Tetragnatha filiciphilia Gillespie, 1992 Tetragnatha filiformata Roewer, 1942 Tetragnatha filigastra Mello-Leitão, 1943 Tetragnatha filipes Schenkel, 1936 Tetragnatha filum Simon, 1907 Tetragnatha flagellans Hasselt, 1882 Tetragnatha flava (Audouin, 1826) Tetragnatha flavida Urquhart, 1891 Tetragnatha fletcheri Gravely, 1921 Tetragnatha foai Simon, 1902 Tetragnatha foliferens Hingston, 1927 Tetragnatha foveata Karsch, 1892 Tetragnatha fragilis Chickering, 1957 Tetragnatha franganilloi Brignoli, 1983 Tetragnatha friedericii Strand, 1913 Tetragnatha gemmata L. Koch, 1872 Tetragnatha geniculata Karsch, 1892 Tetragnatha gertschi Chickering, 1957 Tetragnatha gibbula Roewer, 1942 Tetragnatha gongshan Zhao & Peng, 2010 Tetragnatha gracilis (Bryant, 1923) Tetragnatha gracillima (Thorell, 1890) Tetragnatha granti Pocock, 1903 Tetragnatha gressitti Okuma, 1988 Tetragnatha gressittorum Okuma, 1987 Tetragnatha guatemalensis O. Pickard-Cambridge, 1889 Tetragnatha gui Zhu, Song & Zhang, 2003 Tetragnatha hamata Thorell, 1898 Tetragnatha hasselti Thorell, 1890 Tetragnatha hastula Simon, 1907 Tetragnatha hawaiensis Simon, 1900 Tetragnatha heongi Barrion & Barrion-Dupo, 2011 Tetragnatha hirashimai Okuma, 1987 Tetragnatha hiroshii Okuma, 1988 Tetragnatha hulli Caporiacco, 1955 Tetragnatha insularis Okuma, 1987 Tetragnatha insulata Hogg, 1913 Tetragnatha insulicola Okuma, 1987 Tetragnatha intermedia Kulczyński, 1891 Tetragnatha iriomotensis Okuma, 1991 Tetragnatha irridescens Stoliczka, 1869 Tetragnatha isidis (Simon, 1880) Tetragnatha iwahigensis Barrion & Litsinger, 1995 Tetragnatha jaculator Tullgren, 1910 Tetragnatha javana (Thorell, 1890) Tetragnatha jejuna (Thorell, 1897) Tetragnatha josephi Okuma, 1988 Tetragnatha jubensis Pavesi, 1895 Tetragnatha kamakou Gillespie, 1992 Tetragnatha kapua Gillespie, 2003 Tetragnatha kauaiensis Simon, 1900 Tetragnatha kea Gillespie, 1994 Tetragnatha keyserlingi Simon, 1890 Tetragnatha khanjahani Biswas & Raychaudhuri, 1996 Tetragnatha kikokiko Gillespie, 2002 Tetragnatha kiwuana Strand, 1913 Tetragnatha klossi Hogg, 1919 Tetragnatha kochi Thorell, 1895 Tetragnatha kolosvaryi Caporiacco, 1949 Tetragnatha kukuhaa Gillespie, 2002 Tetragnatha kukuiki Gillespie, 2002 Tetragnatha labialis Nicolet, 1849 Tetragnatha laboriosa Hentz, 1850 Tetragnatha lactescens (Mello-Leitão, 1947) Tetragnatha laminalis Strand, 1907 Tetragnatha lamperti Strand, 1906 Tetragnatha lancinans Kulczyński, 1911 Tetragnatha laochenga Barrion, Barrion-Dupo & Heong, 2013 Tetragnatha laqueata L. Koch, 1872 Tetragnatha latro Tullgren, 1910 Tetragnatha lauta Yaginuma, 1959 Tetragnatha lea Bösenberg & Strand, 1906 Tetragnatha lena Gillespie, 2003 Tetragnatha lepida Rainbow, 1916 Tetragnatha levii Okuma, 1992 Tetragnatha lewisi Chickering, 1962 Tetragnatha limu Gillespie, 2003 Tetragnatha linearis Nicolet, 1849 Tetragnatha lineatula Roewer, 1942 Tetragnatha linyphioides Karsch, 1878 Tetragnatha llavaca Barrion & Litsinger, 1995 Tetragnatha longidens Mello-Leitão, 1945 Tetragnatha luculenta Simon, 1907 Tetragnatha luteocincta Simon, 1908 Tetragnatha mabelae Chickering, 1957 Tetragnatha macilenta L. Koch, 1872 Tetragnatha macracantha Gillespie, 1992 Tetragnatha macrops Simon, 1907 Tetragnatha maculata Blackwall, 1865 Tetragnatha maeandrata Simon, 1908 Tetragnatha major Holmberg, 1876 Tetragnatha maka Gillespie, 1994 Tetragnatha makiharai Okuma, 1977 Tetragnatha mandibulata Walckenaer, 1841 Tetragnatha maralba Roberts, 1983 Tetragnatha margaritata L. Koch, 1872 Tetragnatha marginata (Thorell, 1890) Tetragnatha marquesiana Berland, 1935 Tetragnatha martinicensis Dierkens, 2011 Tetragnatha mawambina Strand, 1913 Tetragnatha maxillosa Thorell, 1895 Tetragnatha mengsongica Zhu, Song & Zhang, 2003 Tetragnatha mertoni Strand, 1911 Tetragnatha mexicana Keyserling, 1865 Tetragnatha micrura Kulczyński, 1911 Tetragnatha minitabunda O. Pickard-Cambridge, 1872 Tetragnatha modica Kulczyński, 1911 Tetragnatha mohihi Gillespie, 1992 Tetragnatha montana Simon, 1874 Tetragnatha monticola Okuma, 1987 Tetragnatha moua Gillespie, 2003 Tetragnatha moulmeinensis Gravely, 1921 Tetragnatha multipunctata Urquhart, 1891 Tetragnatha nana Okuma, 1987 Tetragnatha nandan Zhu, Song & Zhang, 2003 Tetragnatha necatoria Tullgren, 1910 Tetragnatha nepaeformis Doleschall, 1859 Tetragnatha nero Butler, 1876 Tetragnatha netrix Simon, 1900 Tetragnatha nigricans Dalmas, 1917 Tetragnatha nigrigularis Simon, 1898 Tetragnatha nigrita Lendl, 1886 Tetragnatha niokolona Roewer, 1961 Tetragnatha nitens (Audouin, 1826) Tetragnatha nitidiuscula Simon, 1907 Tetragnatha nitidiventris Simon, 1907 Tetragnatha notophilla Boeris, 1889 Tetragnatha noumeensis Berland, 1924 Tetragnatha novia Simon, 1901 Tetragnatha nubica Denis, 1955 Tetragnatha obscura Gillespie, 2002 Tetragnatha obscuriceps Caporiacco, 1940 Tetragnatha obtusa C. L. Koch, 1837 Tetragnatha oculata Denis, 1955 Tetragnatha okumae Barrion & Litsinger, 1995 Tetragnatha olindana Karsch, 1880 Tetragnatha oomua Gillespie, 2003 Tetragnatha oreobia Okuma, 1987 Tetragnatha orizaba (Banks, 1898) Tetragnatha oubatchensis Berland, 1924 Tetragnatha palikea Gillespie, 2003 Tetragnatha pallescens F. O. Pickard-Cambridge, 1903 Tetragnatha pallida O. Pickard-Cambridge, 1889 Tetragnatha paludicola Gillespie, 1992 Tetragnatha paludis Caporiacco, 1940 Tetragnatha panopea L. Koch, 1872 Tetragnatha papuana Kulczyński, 1911 Tetragnatha paradisea Pocock, 1901 Tetragnatha paradoxa Okuma, 1992 Tetragnatha paraguayensis (Mello-Leitão, 1939) Tetragnatha parva Badcock, 1932 Tetragnatha parvula Thorell, 1891 Tetragnatha paschae Berland, 1924 Tetragnatha perkinsi Simon, 1900 Tetragnatha perreirai Gillespie, 1992 Tetragnatha peruviana Taczanowski, 1878 Tetragnatha petrunkevitchi Caporiacco, 1947 Tetragnatha phaeodactyla Kulczyński, 1911 Tetragnatha pilosa Gillespie, 1992 Tetragnatha pinicola L. Koch, 1870 Tetragnatha piscatoria Simon, 1898 Tetragnatha planata Karsch, 1892 Tetragnatha plena Chamberlin, 1924 Tetragnatha polychromata Gillespie, 1992 Tetragnatha praedonia L. Koch, 1878 Tetragnatha priamus Okuma, 1987 Tetragnatha protensa Walckenaer, 1841 Tetragnatha pseudonitens Barrion, Barrion-Dupo & Heong, 2013 Tetragnatha puella Thorell, 1895 Tetragnatha pulchella Thorell, 1877 Tetragnatha punua Gillespie, 2003 Tetragnatha quadrinotata Urquhart, 1893 Tetragnatha quasimodo Gillespie, 1992 Tetragnatha quechua Chamberlin, 1916 Tetragnatha radiata Chrysanthus, 1975 Tetragnatha ramboi Mello-Leitão, 1943 Tetragnatha rava Gillespie, 2003 Tetragnatha reimoseri (Rosca, 1939) Tetragnatha reni Zhu, Song & Zhang, 2003 Tetragnatha restricta Simon, 1900 Tetragnatha retinens Chamberlin, 1924 Tetragnatha rimandoi Barrion, 1998 Tetragnatha rimitarae Strand, 1911 Tetragnatha riparia Holmberg, 1876 Tetragnatha riveti Berland, 1913 Tetragnatha roeweri Caporiacco, 1949 Tetragnatha rossi Chrysanthus, 1975 Tetragnatha rouxi (Berland, 1924) Tetragnatha rubriventris Doleschall, 1857 Tetragnatha scopus Chamberlin, 1916 Tetragnatha serra Doleschall, 1857 Tetragnatha shanghaiensis Strand, 1907 Tetragnatha shinanoensis Okuma & Chikuni, 1978 Tetragnatha shoshone Levi, 1981 Tetragnatha sidama Caporiacco, 1940 Tetragnatha signata Okuma, 1987 Tetragnatha similis Nicolet, 1849 Tetragnatha simintina Roewer, 1961 Tetragnatha sinuosa Chickering, 1957 Tetragnatha sobrina Simon, 1900 Tetragnatha sociella Chamberlin, 1924 Tetragnatha squamata Karsch, 1879 Tetragnatha stelarobusta Gillespie, 1992 Tetragnatha stellarum Chrysanthus, 1975 Tetragnatha sternalis Nicolet, 1849 Tetragnatha stimulifera Simon, 1907 Tetragnatha straminea Emerton, 1884 Tetragnatha strandi Lessert, 1915 Tetragnatha streichi Strand, 1907 Tetragnatha striata L. Koch, 1862 Tetragnatha subclavigera Strand, 1907 Tetragnatha subesakii Zhu, Song & Zhang, 2003 Tetragnatha subextensa Petrunkevitch, 1930 Tetragnatha subsquamata Okuma, 1985 Tetragnatha suoan Zhu, Song & Zhang, 2003 Tetragnatha sutherlandi Gravely, 1921 Tetragnatha tahuata Gillespie, 2003