The larvae feed on creepers and climbers of the genus Aristolochia, family Aristolochiaceae, and they sequester toxins such as aristolochic acid in their bodies. This makes the adults toxic to vertebrate predators such as birds and reptiles.
Larvae of the genus Aristolochia consume creepers and climbers, sequestering toxins like aristolochic acid in their bodies. This renders adults toxic to vertebrate predators such as birds and reptiles.