It is only known from Hekou and Pingbian counties in southern Yunnan, China,[3][4] and from Lào Cai Province in adjacent northwestern Vietnam.

The snout is rounded in dorsal view; males typically have more than 160 tiny black spines on the upper lip, whereas females have small white markings in generally similar positions.

The dorsum is reddish brown[2] to gray-brown[5] with irregularly shaped black spots.

The chest and throat are mostly white with some black mottling and many tiny dark-brown points.

[2] The Vietnamese specimens were found in leaf litter on the forest floor; the identity of the tadpoles from nearby streams needs confirmation.