Common jay is a black, tropical papilionid butterfly with pale blue semitransparent central wing band that are formed by large spot. There is a marginal series of smaller spots. The underside of wings is brown with marking similar to upperside but whitish in color. The sexes look alike. The species was first described by father and son entomologist Cajetan and Rudolf Felder. It is common in thick, riparian, moist, deciduous, semi-evergreen and evergreen forest.

The common jay is active throughout the day and constantly on the move. It rarely settles down. Its flight is swift and straight. It never settles down and keeps its wings vibrating while feeding from flowers. The host plant of common jay is Polyalthia longifolia and Magnolia champaca. 

The Common Jay (Graphium doson), also known as the Green Jay, is a striking butterfly known for its vibrant colors and distinct markings. It belongs to the family Papilionidae and is found in various regions across South and Southeast Asia.

Wingspan: The wingspan typically ranges from 60 to 80 mm.