AppearanceMale upperside brownish black. Fore and hind wings crossed by a broad prominent oblique pale greenish or yellowish-white band that commences just before the middle of the dorsal margin of the hind wing, crosses over on to the fore wing and is continued as a series of spots that diminish in size in the upper interspaces to the apex of that wing; on the hind wing this is followed by a subterminal series of similarly-coloured lunules. Underside fuliginous black, the transverse band that crosses the wings as on the upperside. Fore wing: cell with a series of four slender longitudinal pale lines from base; the veins also picked out with pale lines; on the veins that run to the terminal margin these lines are conspicuous only at the apices; there are besides short similar lines between the veins that extend to the terminal margin. Hind wing: the interspaces beyond the transverse medial greenish-white band marked with broad jet-black streaks up to the subterminal line of greenish-white lunules; these streaks medially interrupted by a transverse line of blue scales and succeeded in interspaces 1 and 7 by preapical ochraceous-yellow spots; terminal margin beyond the line of lunules black.
Antennae, head, thorax and abdomen fuliginous black; beneath, the palpi and abdomen greenish white, the thorax dark grey.
EvolutionLarva. "Similar to that of ''P. erithonius'' . Anterior segments scutellated, furnished with two tentacular processes on the 2nd segment and two short fleshy processes on the 9th and anal segments."
Pupa. "Curved abruptly backwards; head bifid; thorax with a lengthened curved acute thoracic process"
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