''Theretra'' is a genus of

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

s in the family

Sphingidae The Sphingidae are a family of moths (Lepidoptera) called sphinx moths, also colloquially known as hawk moths, with many of their caterpillars known as “hornworms”; it includes about 1,450 species. It is best represented in the tropics, bu ...

. The genus was established by

Jacob Hübner Jacob Hübner (20 June 1761 – 13 September 1826, in Augsburg) was a German entomologist. He was the author of ''Sammlung Europäischer Schmetterlinge'' (1796–1805), a founding work of entomology. Scientific career Hübner was the author of '' ...

in 1819.

Species

Theretra alecto MHNT CUT 2010 0 245 Aurangabad Maharashtra female.jpg, '' Theretra alecto'' Theretra boisduvalii MHNT CUT 2010 0 136 Doi Inthanon Chiang Mai female.jpg, '' Theretra boisduvalii'' Theretra castanea MHNT CUT 2010 0 128 Mahabaleshwar India.jpg, '' Theretra castanea'' Theretra celata MHNT CUT 2010 0 254 Cooktown Queensland Australia male.jpg, '' Theretra celata'' Theretra clotho MHNT CUT 2010 0 18 Thailande Khao Yai National Park female.jpg, '' Theretra clotho'' Theretra gnoma MHNT CUT 2010 0 103 Aurangabad Maharashtra India male.jpg, '' Theretra gnoma'' Theretra incarnata MHNT CUT 2010 0 103 Australia male.jpg, '' Theretra incarnata'' Theretra indistincta MHNT CUT 2010 0 288 Cooktown Australia female.jpg, '' Theretra indistincta'' Theretra japonica MHNT CUT 2010 0 193 TamaGawa, Shizuoka Japan female.jpg, '' Theretra japonica'' Theretra latreillii MHNT CUT 2010 0 376 Ban Kheum Laos female.jpg, '' Theretra latreillii'' Theretra lycetus MHNT CUT 2010 0 518 Ban Kheum Laos - male.jpg, '' Theretra lycetus'' Theretra manilae MHNT CUT 2010 0 128 Philipines Male.jpg, '' Theretra manilae'' Theretra margarita MHNT CUT 2010 0 305 Cooktown Queensland Australia female.jpg, '' Theretra margarita'' Theretra nessus MHNT CUT 2010 0 354 Mudumalai Nilgiris Inde Male.jpg, ''

Theretra nessus ''Theretra nessus'', the yam hawk moth, is a moth of the family Sphingidae. It was described by Dru Drury in 1773. Distribution It is found in Sri Lanka, India (including the Andaman and Nicobar islands), Nepal, Myanmar, Thailand, Vietnam, s ...

'' Theretra oldenlandiae MHNT CUT 2010 0 308 Chiang Mai Thailand female.jpg, '' Theretra oldenlandiae'' Theretra pallicosta MHNT CUT 2010 0 238 Ban Kheum Laos male.jpg, '' Theretra pallicosta'' Theretra polistratus MHNT CUT 2010 0 103 New Guinea.jpg, '' Theretra polistratus'' Theretra queenslandi MHNT CUT 2010 0 103 Wau, Papua New Guinea male.jpg, '' Theretra queenslandi'' Theretra radiosa MHNT CUT 2010 0 103 Wau, Papua New Guinea male.jpg, '' Theretra radiosa'' Theretra rhesus MHNT CUT 2010 0 288 Wushae Taiwan female.jpg, '' Theretra rhesus'' Theretra silhetensis MHNT CUT 2010 0 305 Phu Phan National Park Thailand male.jpg, '' Theretra silhetensis'' Theretra suffusa MHNT CUT 2010 0 194 Sumatra female.jpg, '' Theretra suffusa'' Theretra tryoni MHNT CUT 2010 0 376 Wau, Morobe Dist. New Guinea male.jpg, '' Theretra tryoni''

Ecology

Pollination

Several species of the genus '' Theretra'', namely '' Theretra japonica'' and ''

'', have been reported to pollinate the orchid species ''

Vanda falcata ''Vanda falcata'', the wind orchid, is a species of orchid found in China, Korea, and Japan. It was formerly classified in the genus ''Neofinetia''. *风兰 (feng lan) China (N Fujian, S Gansu, SW Hubei, W Jiangxi, Sichuan, Zhejiang) *풍란 (pu ...

''.Suetsugu, K., Tanaka, K., Okuyama, Y., & Yukawa, T. (2015)
"Potential pollinator of ''Vanda falcata'' (Orchidaceae): ''Theretra'' (Lepidoptera: Sphingidae) hawkmoths are visitors of long spurred orchid."
European Journal of Entomology, 112(2), 393.

References

Macroglossini Moth genera Taxa named by Jacob Hübner {{Theretra-stub