The black-tailed myiobius or black-tailed flycatcher is a species of passerine bird in the family Tityridae. It was previously placed in the family Tyrannidae. Black-tailed flycatchers are found in Brazil, Colombia, Costa Rica, Ecuador, Panama, Peru, and Venezuela. Their natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forest. They are usually found alone or in pairs, but may join flocks of several species.