Alta Floresta Antpitta

The Alta Floresta antpitta is about 14 cm (5.5 in) long and weighs about 40 to 47 g (1.4 to 1.7 oz). The sexes have the same plumage. Adults have buffy-orange lores and ring around the eye with a thin black crescent between them. Their ear coverts are speckled with blackish, grayish, and buff and have a black streak below them. Their forehead, crown, and nape are dark gray with blackish streaks at its lower edge. Their upperparts are olive-brown. Their wings are mostly olive-brown with a black rectangle and buffy bars showing on the coverts. They have a white "moustache" with a black stripe below it. Their throat is creamy white with a black line down from the bill. Their underparts are mostly creamy white with a buffy-cinnamon wash on their sides and flanks. Their breast has black flecks that diminish towards its lower end, their flanks, and belly. They have a dark brown iris, a gray-black maxilla, a pinkish mandible with a grayish outer third, and pale purple-pink legs and feet.

The Alta Floresta antpitta is found in the Amazon Basin of south-central Brazil, south of the Amazon between the Madeira and Xingu rivers. Its range includes parts of the states of Pará, Amazonas, Rondônia, and Mato Grosso. It inhabits humid lowland terra firme forest, where it favors swampy or flooded areas. It appears to be most numerous along watercourses and around gaps in the forest such as those caused by fallen trees. At the southern end of its range it also occurs in drier transitional forest.

The Alta Floresta antpitta's diet and foraging behavior are not known. They are assumed to be similar to those of other members of its genus, whose diet is invertebrates and small vertebrates.