摘要

The genus Cardiodactylus Saussure, 1878 with one new species. Cardiodactylus hainanensis, sp. nov., is reported here from Hainan Island of China for the first time. This new genus record extends the range of Cardiodactylus westward from Taiwan Island, China. The new species can be distinguished from others mainly by its longer and higher dorsal ridge in the apical part of the pseudepiphallic, in lateral view, as well as the rectangle-shaped basal part of the ridge.

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