Colostygia is een geslacht van nachtvlinders uit de familie van de spanners (Geometridae).
Soorten C. ablutaria Boisduval, 1840 C. albigirata Kollar, 1844 C. algidata Möschler, 1874 C. aptata (Hübner, 1813) C. aqueata (Hübner, 1813) C. atlinensis Swett, 1918 C. austriacaria (Herrich-Schäffer, 1852) C. baffinensis McDunnough, 1939 C. bellaria Leech, 1897 C. bipectinata Barnes & McDunnough, 1917 C. blackmorei Swett, 1918 C. correlata Warren, 1901 C. corydalaria 1889 ) C. cyrnea (Wehrli, 1925) C. didymata Linnaeus, 1758 C. exceptata Sterneck, 1928 C. fitzi (Schawerda, 1914) C. fossaria Taylor, 1906 C. grataria Leech, 1891 C. hiemalis Inoue, 1989 C. hilariata (Pinker, 1954) C. jemeza Butler, 1878 C. kitschelti (Rebel, 1934) C. kollariaria (Herrich-Schäffer, 1848) C. laetaria (de La Harpe, 1853) C. lineolata Fabricius, 1794 C. macdunnoughi Swett, 1918 C. marinensis McDunnough, 1945 C. multistrigaria (Haworth, 1809) - vroege walstrospanner C. nemorella Hulst, 1896 C. nubicincta Warren, 1900 C. olivata (Denis & Schiffermüller, 1775) - groene bergspanner C. parallelolineata Retzius, 1785 C. pectinataria Knoch, 1781 - kleine groenbandspanner C. pendearia Oberthür, 1893 C. pontiaria Taylor, 1906 C. pragmatica 1988 C. puengeleri (Stertz, 1902) C. pungeleri Stertz, 1902 C. pyrenaearia Oberthür, 1884 C. salicata Hübner, 179, 1799 C. schneideraria Lederer, 1854 C. sericeata (Schwingenschuss, 1926) C. stilpna (Prout, 1924) C. tempestaria (Herrich-Schäffer, 1852) C. turbata (Hübner, 1799) C. ustipennis Hampson, 1895 C. viperata Alphéraky, 1897 C. wolfschlaegerae (Pinker, 1953) C. wolfschlagerae Pinker, 1953 C. zaprjagaevi 1988