Predicted Antwren

The predicted antwren is 11 to 12 cm (4.3 to 4.7 in) long and weighs about 11 g (0.39 oz). Adult males have a black crown and nape, a long whitish supercilium, and a black streak through the eye. The rest of their upperparts are gray with black on the scapulars. Their wings are black with white tips on the coverts and white edges on the flight feathers. Their tail is black with large white feather tips and white edges on the outermost. Their throat is pale creamy white and their breast and belly whitish. Adult females have a rusty forehead and lores, and a black crown with white speckles. Their upperparts are gray. Their throat is a creamier white than the male's.

The predicted antwren is found in the southern part of Brazil's Amazonas state, south of the Amazon between the rios Juruá and Madeira. Most of the sightings have been from the eastern half of its range, east of the Rio Purus. It inhabits the mid- to upper levels of humid evergreen forest, principally campinarana on sandy soil and terra firme on clay soils. It also occurs in seasonally flooded igapó but not várzea.

The predicted antwren's diet is known only from the stomach contents of specimens, which were the remains arthropods. It forages singly, in pairs, and in family groups and often as a member of a mixed-species feeding flock. It mostly forages between 5 and 30 m (15 and 100 ft) by gleaning prey from vegetation.