The Common Rose Swallowtail Butterfly is one of the red-bodied swallowtails unpalatable to predators (toxins from Aristolochia vines) and mimicked by black-bodied butterflies. It is native to much of South and Southeast Asia, with several subspecies throughout its range.
Male and female can look similar but females are slightly larger with broader wings.
Males can have a plain topside without the white markings, looking similar to the topside of the male Pink Rose Swallowtail. The one above left and centre has lost his tails.
The dashes or crescents on the topside of the tailed hind wing are generally pale pink or pinkish grey or, at top of page, red.