Neptis hylas, the common sailor,[1][2] is a species of nymphalid butterfly found in the Indian subcontinent and southeast Asia.

Hindwing: subbasal band of even or nearly oven width; discal and subterminal pale lines obscure; postdiscal series of spots well separated, quadrate or subquadrate, very seldom narrow.

[3] Wet-season form - Differs only in the narrowness of the white markings and in the slightly darker ground colour and broader black margins to the spots and bands on the underside.

[8] Throughout continental India; Sri Lanka; Assam; Nepal; Myanmar (Tenasserim), extending to China and Indomalaya.

Colour pale green; face, the tip of processes and segments slightly washed with pale pinkish, a slight pinkish oblique lateral fascia from an anal process; a small, dark, lateral spot on the sixth segment.