The White-breasted Tapaculo searches leaf litter for insects in the dark understory of humid Atlantic Forest. Males are dark blue-gray above, brown from the back to the tail, and whitish from throat to belly; females have grayer underparts.
Males are dark blue-gray from the head across part of the wings, with brown from the back to the tail. The throat through the belly is whitish; females have grayer, more mottled underparts, and both sexes have barred flanks.
It uses the dark understory of humid primary and secondary Atlantic Forest, including Araucaria and streamside woods. It stays in dense growth near the ground, alone or in pairs, turning leaves to find insects.
An extinction-risk assessment has not been added yet.