Aripuana antwren

The Aripuana antwren (Herpsilochmus stotzi) is an insectivorous bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is endemic to central Amazonian Brazil.

The Aripuana 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. 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 an orangish forehead and a black crown with white streaks. Their upperparts are gray. Their throat is a creamier white than the male's and the rest of their underparts are whiter than the male's.