This small antbird ranges from eastern Peru to northern Bolivia and southern Amazonian Brazil. It lives near water in flooded or gallery forest and swamps; males are gray with a black bib and broad white tail tips.
The male is gray with a black bib, white wing-bars, and a broad white tail tip. The female is similar, but has white underparts with grayish spots.
It inhabits flooded forest, gallery forest, lake margins, and swamps, always close to water. It eats insects, although its account notes that detailed diet information is limited.
An extinction-risk assessment has not been added yet.