A new cryptic species in the Theloderma rhododiscus complex (Anura, Rhacophoridae) from China–Vietnam border regions

By

Du, Lingyun
Wang, Jian
Liu, Shuo
Yu, Guohua

Type

Article

Date of Publication

2022-5-3

Original Publication

ZooKeys

Volume

1099

Pages

123--138

Subjects

16S rRNA , COI , southern Yunnan , Theloderma hekouense sp. nov.

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1099.80390

 

Abstract

We describe a new species of Theloderma from southern Yunnan, China and northern Vietnam based on morphological and molecular evidence. Theloderma hekouensesp. 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.