This small tyrant flycatcher has olive upperparts, a white eye-ring, a grey breast, and yellow at the bend of the wing. It occurs from south-eastern Brazil through eastern Paraguay to north-eastern Argentina, foraging in the understory of humid forest and secondary growth, especially bamboo patches.
It is about 11 cm long. The upperparts are dull olive, the throat and breast dull grey, and the belly whiter. It has a white eye-ring and supraloral spot, a yellow wing bend, and yellow on the crissum.
It forages in the understory of humid forest and secondary growth, particularly in bamboo patches. It catches insects by hawking them in the air.
An extinction-risk assessment has not been added yet.