A new genus, new species, and new records of termitophilous Corotocini (Coleoptera : Staphylinidae, Aleocharinae) from Australia and the Orient with a discussion of their relationship to others in the Australian, New Guinean, and Indo-Malayan areas

A new genus is described Tumulipcinus, type species Tumulipcinus nuttingi n . sp. from Western Australia. Ten other new species are described: Tumulipc inus watsoni from New South Wales Termitoptocinus milleri, T. austrosimulus , Neoguinella paravaleriae, and N. crypta, all from Queensland and Australo ptochus smithi, adult and larvae, Australoptochus humptydooensis and A, mil leri from Northern Territory. Hospitaliptochus brunneus is described from T hailand, H. luzonensis from the Philippines. Four records of still undescri bed larvae belonging to the tribe Corotocini and their overall appearance a re presented. The larvae all belong to the subtribe Termitoptochina, three from NT and one from the western border of Queensland. A key to the genera of the larvae of all Termitoptochina is presented. The larvae of Hospitalip tochus brunneus, H. luzonicus, and Lacessiptochus alzadae are described for the first time. Keys to species are given for all new species. New distrib ution records are provided for Termitoptocinus australiensis, T. papuanus, Australoptochus phoreticus, and Affinoptochus exclusus. Biogeography is dis cussed and three well known distributional patterns are identified in the C orotocini: the South American-Australian, the York Peninsula- New Guinea in terchange, and the northern Australia - Indomalayian - Indian - African. Ob servations suggest that the distribution along these patterns is, for the m ost part, a result of vicariance rather than dispersal. Behavioral notes fo r selected species are presented.