[9] The larvae are spindle shaped, transversely wrinkled, and covered in small tubercles, giving it a rough appearance.

Two long brown spines on the head point forward, while a pair of pinkish prongs project from the anal segment.

[10] The pupae are perpendicularly suspended, slender and regular, except that the head-case is produced into a long beak formed of two thin processes like split straws.

[10][11] Orsotriaena medus superficially resembles members of the genus Mycalesis (bushbrowns), but can readily be identified by the number of spots.

[11] Orsotriaena medus is native to India, Sri Lanka, Myanmar, Cambodia, Thailand, southern Yunnan, Malaysia, the Indonesian archipelago, the Philippines, New Guinea, New Britain and Australia.

A shy, weak-flying insect, it stays low amongst the undergrowth, and when disturbed flies for a short distance before settling down.