''Acosmeryx castanea'' is a

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 ...

of 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 ...

. It was described by Rothschild and Jordan in 1903.

Distribution

Is known from eastern and southern

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed ...

and

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

Description

The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ...

is 75–90 mm. Acosmeryx castanea MHNT CUT 2010 0 171 Ohsugidani Honguh Wakayama male dorsal.jpg, Male dorsal Acosmeryx castanea MHNT CUT 2010 0 171 Ohsugidani Honguh Wakayama male ventral.jpg, Male ventral

Biology

In Hong Kong, adults are on wing from March to late September. In Korea and Japan, adults are on wing from late June to mid-August. There are multiple generations per year. The larvae feed on ''

Ampelopsis glandulosa ''Ampelopsis glandulosa'' is a species of plant native to China, Japan, India, Nepal, Myanmar, Vietnam, and the Philippines. Varieties Several varieties are distinguished: * var. ''hancei'' * var. ''kulingensis'' * var. ''glandulosa'' * var ...

'' and ''

Cayratia japonica ''Causonis japonica'' (also known by its synonym ''Cayratia japonica'' and common names bushkiller, yabu garashi and Japanese cayratia herb) is the type species of vine plant in its genus and is native to Tropical and Subtropical Asia, Australia ...

''.

References

Acosmeryx Moths described in 1903 Moths of Asia {{Macroglossini-stub