''Acosmeryx sericeus'' is a moth of the family Sphingidae. It was described by Francis Walker in 1856, and is known from Nepal, north-eastern India, Bangladesh, Thailand, southern China, Vietnam and Peninsular Malaysia.
Wingspan: 96-106 mm. Forewing with outer margin dentate. Forewing upperside general background colour violaceous-grey, with the brown lines more prominent than in other species of the genus; first discal line well-marked, running straight from vein M3 to the hind.. more