Multiple lines of evidence reveal a new species of Krait (Squamata, Elapidae, Bungarus ) from Southwestern China and Northern Myanmar

Kraits of the genus Daudin 1803 are widely known venomous snakes distributed from Iran to China and Indonesia. Here, we use a combination of mitochondrial DNA sequence data and morphological data to describe a new species from Yingjiang County, Yunnan Province, China: . Phylogenetically, this species forms a monophyletic lineage sister to the / / complex based on cyt and ND4 genes but forms a sister species pair with the species Wall & Evans, 1901 based on COI gene fragments. Morphologically, . is similar to the / / complex but differs from these taxa by a combination of dental morphology, squamation, coloration pattern, as well as hemipenial morphology. A detailed description of the cranial osteology of the new species is given based on micro-CT tomography images. We revised the morphological characters of / / complex and verified the validity of three species in this complex. The distribution of these species was revised; the records of in China should be attributed to . We also provide an updated key to species of .