Ambulyx japonica is a species of moth of the family Sphingidae first described by Walter Rothschild in 1894. It is known from eastern China, Korea, Japan and Taiwan.
Description The wingspan is 81–90 mm.
Biology The larvae have been recorded feeding on Aceraceae species in China. In Japan, larvae have been recorded on Acer and Carpinus japonica. Furthermore, larvae have been reared on Carpinus laxiflora and Carpinus tschonoskii.
Subspecies Ambulyx japonica japonica (Japan) Ambulyx japonica angustifasciata (Okano, 1959) (Taiwan) Ambulyx japonica koreana Inoue, 1993 (Korea and eastern China)
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