The Black-backed Tody-Flycatcher is a tiny tyrant flycatcher of southeastern Peru's eastern Andean slope. It moves through thick foliage along forest edges and in second growth.
It is about 9.5 cm long. The male has a black head, back, and wings, a broad yellow wing bar, a rufous shoulder, a white throat, and yellow underparts. The female is similar but has an olive-green mantle.
It searches for small prey in thick understory foliage. Foraging is reported at forest edges, in second growth, and around stands of Guadua bamboo, at about 400–1,500 m.
An extinction-risk assessment has not been added yet.