This poorly known antbird is recorded in the Brazilian Amazon. Its large, laterally flattened black bill has a sharply upturned tip. The female type specimen was chestnut with a black throat and upper breast; males seen in the field were described as entirely black.
The female specimen had chestnut upperparts and breast, with a black bib from the chin to the upper breast. Its tail and rump area were dark grey, and the upperwing coverts were unmarked. Field sightings described males as entirely black.
A female captured in low campinarana in Rondônia in 2012 was foraging at the edge; arthropod fragments were found in its gizzard. Other records are from terra firme forest with vines and from secondary growth.
An extinction-risk assessment has not been added yet.