Papilio bianor
Scientific NamePapilio bianor
FamilyPapilionidae
SubfamilyPapilioninae
HabitatFound in forests, woodlands, and gardens, particularly in areas rich with their host plants.
Host PlantsZanthoxylum spp. (e.g., prickly ash), Phellodendron spp. (e.g., cork tree), Citrus spp. (e.g., orange, lemon, other Rutaceae)
Conservation StatusLeast Concern (generally common and not considered threatened)
Description
The caterpillar of the Chinese Peacock butterfly (*Papilio bianor*) exhibits distinct appearances throughout its instars. Early instars are typically dark brown and white, mimicking bird droppings to deter predators. As they mature, they transition to a predominantly green coloration, often with subtle markings, providing excellent camouflage among foliage. Like many swallowtail caterpillars, they possess an osmeterium, a retractable, Y-shaped organ located behind the head, which emits a strong, pungent odor when the caterpillar feels threatened, serving as a chemical defense mechanism. They are primarily herbivorous, feeding on the leaves of various plants in the Rutaceae family.
