One new species of Herbertus with distinctly verruculose cuticle from Papua New Guinea is described and illustrated: Herbertus streimannii sp. nov. Eight species of Herbertus are present in Australasia and the south Pacific: H. armitanus (Steph.) H. A. Mill., H. circinatus (Steph.) H. A. Mill., H. leratii (Steph.) H. A. Mill., H. longifissus Steph., H. oldfieldianus (Steph.) Rodway, H. pilifer Schiffn., and H. ramosus (Steph.) H. A. Mill. Herbertus huerlimannii H. A. Mill. and H. parisii (Steph.) H. A. Mill. are placed under the synonymy of H. longifissus, H. alpinus (Steph.) E. A. Hodgs. under H. oldfieldianus, H. javanicus (Steph.) S. Hatt. under H. ramosus, and H. setigerus (Steph.) H. A. Mill. under H. leratii. A key to all the species in the region is provided.

Communicating Editor: Alan T. Whittemore