Abstract
We describe a new species of Theloderma from southern Yunnan, China and northern Vietnam based on morphological and molecular evidence. Thelodermahekouense sp. nov., which had been recorded as T.rhododiscus, is the sister to T.rhododiscus. The new species differs genetically from T.rhododiscus by 4.2% and 10.7% in 16S rRNA and COI genes, respectively, and it can be morphologically distinguished from T.rhododiscus by having more densely spaced white warts on the dorsal surface, red subarticular tubercles, red metacarpal tubercles, a red metatarsal tubercle, and black dorsal and ventral surfaces in preservative. Currently the new species is only known from the China-Vietnam border regions of Yunnan and Ha Giang, while T.rhododiscus has a wide distributional range in China including Guangxi, Guangdong, Hunan, Fujian, Jiangxi, and presumably Guizhou and eastern Yunnan. Including the new species, there are currently 10 Theloderma species in China and seven Theloderma species in Yunnan, where more species will probably be found.
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