This tiny tyrant flycatcher is about 9.5 cm long. It forages in dense understory at forest edges and in second growth; in northern Peru it is recorded along the Andean foothills up to about 600 m.
It has a greenish mantle, black head, white throat, and yellow underparts. The wing coverts are bright yellow, with a rufous shoulder patch.
It searches through thick foliage in the understory of forest edges and second growth. The account does not specify prey types.
An extinction-risk assessment has not been added yet.