A new species of co-endangered tick, Ixodes heathi n. sp., is described from specimens of the nymph collected on the critically endangered mountain pygmy possum (Burramys parvus Broom) from the alpine region of Victoria, Australia. Its biology is discussed along with strategies for its conservation.
Keywords: Co-endangered; Holistic conservation; Ixodes heathi; Mountain pygmy possum; Parasite conservation.