A revision of the cicada genus orientopsaltria kato (Homoptera, Cicadidae) from Southeast Asia

Abstract

This revision of the genus Orientopsaltria contains a generic description, and descriptions, illustrations and distributional maps of the 24 species. Nine species are described as new to science: O. angustata, O. confluens, O. hollowayi, O. kinabaluana, O. latispina, O. maculosa, O. palawana, O. vanbreei, and O. noonadani. Five species are transferred to other genera: O. divergens, O. Montana, and O. tonkiniana to Platylomia, O. multivocalis to Meimuna, and O. ceslaui to Dundubia. One species of Platylomia, P. fuliginosa, is included in Orientopsaltria, and Platylomia banqueyensis Distant, 1912 is considered a junior synonym of Orientopsaltria alticola (Distant 1905). A key presented here is designed to identify the males of Orientopsaltria to the species level. The subdivision in species groups is based upon a preliminary phylogenetic analysis of the species of the genus. The genus Orientopsaltria is restricted to the Malayan Peninsula, Sumatra, Borneo, Palawan, and the Philippines. None of the Orientopsaltria species is distributed over the whole range of the genus. The highest percentage of endemics is found in the Philippines (4 species: 100% endemic) and Palawan (2: 100%), followed by Borneo (6: 50%), Sumatra (2: 25%) and the Malayan Peninsula (1: 10%). This study aims to contribute to the historic biogeographical study of the subtribe Dundubiaria of Southeast Asia and to the knowledge of cicada biodiversity in this area.