| 總結: | Oriental species of the genus <i>Cionus</i> are herein revised for the first time. Eight species are recognized as distinct based on morphological characters of adults. One species is described as new: <i>C. ottomerkli</i> sp. nov., from India, whereas the name <i>vossi</i> (nom. nov.) is proposed for <i>Cionus flavoguttatus</i> Voss, 1957 (not Stierlin, 1893). The following new synonymy is established: <i>Cionus indicus</i> Desbrochers des Loges, 1890 (=<i>Cionus albosparsus</i> Faust, 1898 syn. nov.). Lectotypes of <i>Cionus albosparsus</i> Faust, 1898; <i>Cionus flavoguttatus</i> Voss, 1957; <i>Cionus indicus</i> Desbrochers des Loges, 1890; <i>Cionus obesus</i> Pascoe, 1883; and <i>Cionus tonkinensis</i> Wingelmüller, 1915, are designated.
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