Theretra is a genus of moths in the family Sphingidae. The genus was established by Jacob Hübner in 1819.

Species

• Theretra acuta Vaglia & Liyous, 2010 • Theretra alecto (Linnaeus, 1758) • Theretra alorica Eitschberger, 2010 • Theretra arfakmontensis Eitschberger, 2010 • Theretra balienensis Eitschberger, 2010 • Theretra boisduvalii (Bugnion, 1839) • Theretra cajus (Cramer, 1777) • Theretra capensis (Linnaeus, 1764) • Theretra castanea (Moore, 1872) • Theretra catherinae Vaglia & Kitching, 2010 • Theretra celata (Butler, 1877) • Theretra clotho (Drury, 1773) • Theretra floresica Eitschberger, 2010 • Theretra gala Cadiou, 1999 • Theretra gnoma (Fabricius, 1775) • Theretra griseomarginata (Hampson, 1898) • Theretra halimuni Eitschberger, 2010 • Theretra hausmanni Eitschberger, 2000 • Theretra improvisa Darge, 2006 • Theretra incarnata Rothschild & Jordan, 1903 • Theretra indistincta (Butler, 1877) • Theretra inornata (Walker, 1865) • Theretra insignis (Butler, 1882) • Theretra insularis (C. Swinhoe, 1892) • Theretra japonica (Boisduval, 1869) • Theretra jugurtha (Boisduval, 1875) • Theretra kuehni Rothschild, 1900 • Theretra latreillii (W. S. Macleay, 1826) • Theretra lifuensis Rothschild, 1894 • Theretra lomblenica Eitschberger, 2010 • Theretra lombokensis Eitschberger, 2010 • Theretra lycetus (Cramer, 1775) • Theretra manilae Clark, 1922 • Theretra mansoni Clark, 1924 • Theretra margarita (Kirby, 1877) • Theretra molops Jordan, 1926 • Theretra monteironis (Butler, 1882) • Theretra muricolor Jordan, 1926 • Theretra natashae Cadiou, 1995 • Theretra nessus (Drury, 1773) • Theretra oldenlandiae (Fabricius, 1775) • Theretra orpheus (Herrich-Schäffer, 1854) • Theretra pallicosta (Walker, 1856) • Theretra pantarica Eitschberger, 2010 • Theretra papuensis Eitschberger, 2009 • Theretra perkeo Rothschild & Jordan, 1903 • Theretra polistratus Rothschild, 1904 • Theretra queenslandi (Lucas, 1891) • Theretra radiosa Rothschild & Jordan, 1916 • Theretra rhesus (Boisduval, 1875) • Theretra silhetensis (Walker, 1856) • Theretra suffusa (Walker, 1856) • Theretra sugii Cadiou, 1995 • Theretra sumatrensis (Joicey & Kaye, 1917) • Theretra sumbaensis Eitschberger, 2010 • Theretra tabibulensis Lachlan, 2009 • Theretra tessmanni Gehlen, 1927 • Theretra tibetiana Vaglia & Haxaire, 2010 • Theretra timorensis Eitschberger, 2010 • Theretra tomasi Haxaire & Melichar, 2008 • Theretra tryoni (Miskin, 1891) • Theretra turneri (Lucas, 1891) • Theretra viridis Basquin, 1992 • Theretra wetanensis Eitschberger, 2010

Ecology

Pollination

Several species of the genus Theretra, namely Theretra japonica and Theretra nessus, have been reported to pollinate the orchid species Vanda falcata.