Papilio crino, the common banded peacock,[1][2] is a species of swallowtail (Papilionidae) butterfly found in parts of the Indian subcontinent, including India, Nepal, Bhutan and Sri Lanka.

The hindwing has the transverse bluish-green band very variable in width but the inner margin is much straighter than in P. polyctor; this band that in P. polyctor stops short of vein 7, continues to the costal margin, it is however much and abruptly narrowed above vein 7; tornal ocellus claret-red with a large black centre inwardly edged with blue; the bright ochraceous subapical lunule of P. polyctor replaced by a dull whitish spot; the subterminal diffuse green lunules restricted to interspaces 2,3 and 4; the spatular apex of the tail with a small patch of bluish-green scales.

[3] On the underside of the wings the ground colour is dull pale brown to blackish brown irrorated (sprinkled) with scattered yellowish scales, which, however, on the forewing are absent from a large triangular discal patch that lies between the dorsum, the median vein, vein 5 and a line of white lunules that crosses the wing in an outward curve from the upper third of the costa to just before the tornus; these white lunules are outwardly diffuse and merge gradually into the brown ground colour.

[3][4] Expanse: 100–116 mm Lower Bengal; forested parts of central and southern India (including Kerala); Sri Lanka.

"[3][4] "Curved backward anteriorly; head broad in front; green"[3][4] The butterfly is solitary and a fast flyer.