Australian painted lady significantly affected by these changes. It has been found to use some species of carduine thistles, which are invasive to Australia, as host plants in New South Wales. Australian painted ladies use the plants as hosts during their larval stage, and as food sources. However, they inflict little damage to the plant. Australian painted lady The Australian painted lady ("Vanessa kershawi") butterfly is mostly confined to Australia, although westerly winds have dispersed it to islands east of Australia, including New Zealand. Debate surrounds the taxonomy of this species. Some believe that the Australian painted lady should be a subspecies of
Australian painted lady the painted lady, which suggests that it is a separate species. The Australian species' four ventral eyespots are less clearly defined, and it always sports at least three (often four) conspicuous blue pupil spots on each dorsal hindwings' eyespots. "V. cardui" has either a few tiny pupil spots, or more often, none at all. The Australian painted and the painted lady have very similar lifestyles and behaviours, but the Australian painted lady lives in an arid and stressful environment. Australian painted lady colouration could be induced in painted lady butterflies by injecting the larvae with stress-inducing hormones and subjecting them