Atrophaneura astorion, also known as the common batwing is a butterfly in the family Papilionidae. It is found from Uttarakhand in India to Singapore.
The wings are spotless and are blue-black in colour. The head, sides of neck and the thorax is crimson in colour. This species is best separated from Atrophaneura aidoneus by the colour of the dorsal wing folds.
There are three recognized subspecies -