Pachliopta aristolochiae

[2][3] It is widely distributed in Asia including Afghanistan, Pakistan, India (including the Andaman Islands), Nepal, Sri Lanka, Myanmar, Thailand, Japan (south-western Okinawa only), Laos, Vietnam, Cambodia, Nicobar Islands, peninsular and eastern Malaysia, Brunei, Philippines (Palawan and Leyte), Indonesia, Bangladesh and Taiwan.

In Indonesia, it is distributed in Sumatra, Nias, Enggano, Bangka, Java, Bali, Kangean, Lombok, Sumbawa, Sumba, Flores, Tanahjampea, and Kalimantan.

Variety camorta differs from the typical form as follows: An excellent generalist which has adapted to a range of habitats, the butterfly has been found in congregations at lower elevations.

The red body, slow peculiar flight, bright colouration and pattern of the wings are meant to indicate to predators that this butterfly is inedible, being well protected by the poisons it has sequestered from its larval food plant.

In the evenings, it retires into wooded areas or thickets in search of dead twigs or small branches on which to roost.

The butterfly primarily depends on motive thrust on the powerful flapping of its forewings while the hindwings act as a balancing and steering mechanism.

This flying technique gives a rather unusual look to its flight and an observer is left with the impression that it is dragging itself through the air with only the assistance of its forewings.

Then, its forewings beat readily to give it buoyancy while the tails move delicately to steer and adjust its position.

On occasions, roses have been observed with damaged tails and it is possible that the presence of swallowtails occasionally does favour the butterfly in confusing attackers.

The distinguishing feature of the common rose pupa is the presence of large semi-circular projections on the back of the abdomen, thorax and head.

[4][5] The larvae feed on creepers and climbers of the genus Aristolochia, family Aristolochiaceae, and they sequester toxins such as aristolochic acid in their bodies.

P. a. ceylonica , Sri Lanka