The millipede genus Aponedyopus is endemic to Taiwan and contains three species. All previously described nominal species are considered to represent one species: Aponedyopus montanus Verhoeff, 1939 (the type species), including Aponedyopus reesi (Wang, 1957) and Aponedyopus maculatus Takakuwa, 1942, syn. n. Two further species are described as new: Aponedyopus similissp. n. and Aponedyopus latilobatussp. n. The genus is re-diagnosed, all of its three species are keyed, and their distributions mapped.
Keywords: Aponedyopus; Millipede; Taiwan; distribution; key; new species; taxonomy.