The paper reviews the genus Hexachaetoniella Paschoal in Australia and a rediagnosis is given for the genus. One new combination is established: H. dispersa (Pedrocortesella) (P. Balogh, 1985), and the species is redescribed. Three new species are described: H. bunya n.sp., H. contigua n.sp. and H. norfolkensis n.sp. A key is given for the 5 species, including the type species H. sexpilosa (Hammer) from New Zealand. Pedrocortesella japonica Aoki & Suzuki, assigned by Paschoal (1987) to Hexachaetoniella, is regarded as incertae sedis.