After the only known records were five specimens collected in Laos in 1920, a population was found in Phong Nha, central Vietnam, in 1994.
The adult described in the paper was sooty brown with a purple-bronze sheen, a white throat, and a bluish-gray eye-ring.
A population was found in lowland evergreen forest on limestone at Phong Nha. The fieldwork recorded the species on several occasions over several days and collected one female specimen.
An extinction-risk assessment has not been added yet.