This small tyrannulet is recorded in wooded habitats in Argentina and Bolivia. An Argentine account gives a length of about 11 cm.
About 11 cm long, it has gray-brown upperparts and yellowish underparts, without a prominent crest.
It forages alone or in pairs in middle and upper parts of trees, gleaning small prey from foliage and sometimes chasing flying insects.
An extinction-risk assessment has not been added yet.