Abstract
A study on Platydracus species of Hainan Province, China is presented. Platydracushainanensis sp. nov., Platydracusaureolus sp. nov. and Platydracuszhouchenglini sp. nov. are described as new species. Platydracusmarmorellus Fauvel, 1895 and Platydracussubirideus Kraatz, 1859 are recorded from China for the first time. Habitus and diagnostic characters of all species are photographed, and a key to Platydracus species of Hainan is provided.