War of the invaders. These are a few Cactoblastis cactorum, cactus moth caterpillars, feeding on their favourite meal of Opuntia cacti (prickley pear). Both species are invasive to Australia yet the moth was introduced in 1925 from Argentina to help destroy the cacti epidemic which we began. The Cactoblastis cactorum catepillars dessimate this species and help aleviate the environmental destruction caused by the former (as the cactus is such an adapt survivor in these lands, displacing and outco