This small tyrant flycatcher has been recorded in the Argentine Pampas. It is olive above and yellow below; males have narrow, pointed flight feathers.
It is olive above and yellow below, with brown wings, yellowish inner remiges, and two yellowish wing bars. Males alone have three narrow, shortened primaries.
In the Pampas study it was recorded alone or in pairs, making short flights between shrubs. Nests were placed in dense Carduus vegetation.
An extinction-risk assessment has not been added yet.