C. imberbe C. obsoletum Camptostoma is a genus of birds in the tyrant flycatcher family Tyrannidae.

These are very small passerine birds which breed in the tropical and subtropical Americas from the southernmost USA south to Paraguay, Bolivia, and Argentina.

These are species of light forests, cultivation and gardens with trees.

The domed nest is made of plant fibre or leaves with a side entrance.

They are active birds, feeding in a vireo or warbler-like fashion on insects, spiders and berries.