The taxonomy, phylogeny and biogeography of the cicadas occurring east of Wallace's Line, in Sulawesi, New Guinea and the West Pacific, has been the subject of several publications in the last two decades (Boer & Duffels 1997). One of the two major groups studied is the subtribe Cosmopsaltriaria of the tribe Dundubiini. The Cosmopsaltriaria range from Sulawesi through New Guinea to the Samoa Islands. Phylogenetic and biogeographic analyses of the 8 genera and 125 species of that group suggested that the ancestor of the Cosmopsaltriaria occurred in Northeast Asia and dispersed along island arcs to Sulawesi, New Guinea and the West Pacific in the mid-Tertiary (Boer & Duffels 1996). Over the last few years the biogeographical study of the cicadas of Southeast Asia and the West Pacific has been focussed on the presumed sister group of the Cosmopsaltriaria. This group probably consists of one or more genera of the Dundubiaria, a subtribe of the Dundubiini. From a biogeographical viewpoint it is interesting to note that the Dundubiaria are mainly distributed to the west of Wallace's Line: the Greater Sunda Islands and mainland of Southeast Asia. The taxonomy, phylogeny and biogeography of the subtribe Dundubiaria are currently studied by

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