Austrelatus Gen. Nov., A New Genus Of Australasian Diving Beetles (Coleoptera, Dytiscidae, Copelatinae), With The Discovery Of 31 New Species From New Guinea Shaverdo, H. V., Hajek, J., Hendrich, L., Surbakti, S., Panjaitan, R. & Balke, M.

The volume contains a description of the new diving beetle genus Austrelatus gen. nov. The new genus is mainly known from the Australian Region, with several species penetrating the Wallace Line into the Oriental and SE Palaearctic regions. It is described for a distinctive lineage of 62 species, half of which was previously assigned to Copelatus Erichson, 1832. Therefore, new combinations are established for 31 already described species. The other 31 species are newly discovered in New Guinea and described here based on their morphological characters and Cox1 data. Austrelatus species of New Guinea are divided into two species groups, the A. neoguineesis- and A. papuensis groups, and A. fumato sp. nov. and A. setiphallus sp. nov. standing aside of them. The A. neoguineensis group is introduced for 32 species treated here. This work provides detailed genus and species descriptions, with data on their distributions and habitats, and two identification keys to Copelatinae of New Guinea and the species of the A. neoguineensis group including 93 figures illustrating morphology of the taxa, their areals and habitats. Sofia. Pensoft. 164 pp., 93 color figs, paperback 4