Description of a new species of Music frogs (Anura, Ranidae, ) from Mt Dayao, southern China.

A new species of Music frogs, is described based on a series of adult male specimens collected from Mt Dayao, Guangxi, southern China, providing valuable new information on the phylogeny, bioacoustics, and biogeography of related species within the genus . The new species forms the sister taxon to from western China and together the sister taxon to from northern Vietnam. can be distinguished from all known congeners by a significant genetic divergence in the mitochondrial 16S and CO1 genes, the advertisement call containing 1-3 rapidly repeated regular notes, and the combination of morphological characteristics including a medium-sized body with SVL 40.4-45.9 mm in adult males; lateroventral grooves on every digit, not meeting at the tip of disk; tibio-tarsal articulation reaching the nostril; the presence of a pair of subgular vocal sacs in males; and one single developed nuptial pad on dorsal surface of first finger in males.