Acosmeryx castanea

Acosmeryx castanea is a moth of the family Sphingidae. It was described by Rothschild and Jordan in 1903.

Distribution
Is known from eastern and southern China, Taiwan, South Korea and Japan.

Description
The wingspan is 75–90 mm.

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 and Cayratia japonica.