長腳蛛科（學名：），又名肖蛸科或肖峭科，是蜘蛛目新蛛下目一個蜘蛛的科，由於1866年描述。

形態描述
本科物種有一具拉長了的身體、腿及螯肢，所結的蜘蛛網都是空心圓網，其網經長呈水平或稍微傾斜。部分物種通常可在近水的長長植被裡發現。蜘蛛體長雌性約9~13毫米，雄性約7~8毫米。與多半蜘蛛相同，屬於本科物種皆有八單眼，其位置如下：

系統學

根據《中國動物志》，本科包括六個亞科、20個屬，但有部分分類現時已獨立出去，但仍歸到金蛛總科之下。
，接納以下有現生種的屬：

 Simon, 1895 — Caribbean
 Álvarez-Padilla, 2007 — Chile, Argentina
 Bryant, 1945 — Hispaniola
 Simon, 1895 — Sri Lanka
 Keyserling, 1881 — United States, Panama, South America, Caribbean
 Simon, 1894 — South America, Central America, Mexico, Caribbean
 Keyserling, 1881 — South America, Central America, Caribbean, Mexico
 Song & Zhu, 1994 — China
Diphya Nicolet, 1849 — Asia, South America, Africa
 O. Pickard-Cambridge, 1869 — Asia, Africa, South America, Oceania, United States, Panama
 Simon, 1900 — Hawaii
锯螯蛛属 锯螯蛛属 Simon, 1893：見於印尼、巴西及薩摩亞。
 Strand, 1912 — New Zealand
 Simon, 1887 — Africa, South America, Asia, North America, Central America, Caribbean
 Zhu, Kim & Song, 1997 — Asia
 Bryant, 1945 — Hispaniola
銀腹蛛屬   Simon, 1898 — Central America, Cuba, Mexico, Brazil
Leucauge White, 1841：又名银鳞蛛属 ，見於非洲、北美洲、亞洲、大洋洲、南美洲、中美洲及加勒比海。
 Simon, 1894 — Africa, Guatemala, Brazil
 Kulczyński, 1911 — Oceania, Asia, Africa
 後蛛屬  C. L. Koch, 1836 — Asia, North America, Tanzania, Oceania, Cuba
 O. Pickard-Cambridge, 1899 — Mexico, Guatemala, Ecuador, Dominican Republic
 Chamberlin & Ivie, 1941 — Africa, Asia, Canada
Metleucauge Levi, 1980 — Asia, United States
 Thorell, 1890 — Indonesia
 Álvarez-Padilla, 2007 — Chile
 Zhu, Kim & Song, 1997
 Simon, 1908 — Australia
 Marusik & Omelko, 2017 — Papua New Guinea
 Reimoser, 1927 — Indonesia
 Tanikawa, 2001 — China, Japan
 Archer, 1951 — Asia, Papua New Guinea
 O. Pickard-Cambridge, 1896 — South America, Mexico, Panama
 Thorell, 1890 — Asia, Oceania, Madagascar
 Sundevall, 1823 — Africa, Asia, North America, Cuba, Europe
 Simon, 1895 — Ethiopia, Somalia, Sierra Leone
 Lessert, 1938 — Congo
 Schmidt & Krause, 1993 — Comoros
 Archer, 1951 — Mexico
 Dimitrov & Hormiga, 2011 — Australia
 Tullgren, 1910 — Kenya, Tanzania
 Strand, 1934 — Sri Lanka
長腳蜘蛛屬 Tetragnatha Latreille, 1804：又名肖蛸属— Asia, South America, Oceania, Africa, North America, Caribbean, Central America, Europe
 Thorell, 1898 — Myanmar
隆背蛛屬 Tylorida Simon, 1894 — Asia, Africa, Oceania
Wolongia Zhu, Kim & Song, 1997 — China
 Kallal & Hormiga, 2018 — Taiwan, Korea, Japan
 Wunderlich, 1995 — Israel

化石種
下列各屬只有化石種，沒有現生種：

 †Anameta Wunderlich, 2004 (古近纪, Bitterfield and )
 †Balticgnatha Wunderlich, 2004 (Palaeogene, Baltic amber)
 †Corneometa Wunderlich, 2004 (Palaeogene, Baltic amber)
 †Eometa Petrunkevitch, 1958 (Palaeogene, Baltic amber)
 †Huergnina Selden & Penney, 2003 (白垩纪, )
 †Macryphantes Selden, 1990 (Cretaceous)
 †Palaeometa Petrunkevitch, 1922 (Palaeogene, )
 †Palaeopachygnatha Petrunkevitch, 1922 (Palaeogene, Florissant)
 †Priscometa Petrunkevitch, 1958 (Palaeogene, Baltic amber)
 †Samlandicmeta Wunderlich, 2012 (Palaeogene, Baltic amber)

過往屬於本科的屬
  Simon, 1894 – now in 圆蛛科
 Menosira Chikuni, 1955 – now a synonym of 
  Simon, 1894 – now in Araneidae
 Prolochus Thorell, 1895 – see

參考文獻

 Chickering, A.M. (1963). The Male of Mecynometa globosa (O. P.-Cambridge) (Araneae, Argiopidae).  70:180–183. PDF

外部連結

 Tree of Life Tetragnathidae 
 Tatragnatha sp.  Large format diagnostic photographs and information
 Reference Photos: Tetragnatha laboriosa 
 Venusta Orchard Spider - Family Tetragnathidae 
 Pictures of Tetragnatha sp.  (free for noncommercial use)