Cercomacra is a genus of passerine birds in the family Thamnophilidae. It commonly known as an antbird. They are insect-feeding birds that mainly inhabit tropical and subtropical forest areas of South America. Habit of some species under this genus extending into Central America. Cercomacra is independent of other bird genera for its sexual dimorphism and communication ways. They often forage and feed close to the ground or in low vegetation. A molecular phylogenetic study has shown that the traditional genus Cercomacra is not monophyletic but is divided into two distinct lineages: the "nigricans" group, which retains the original genus name, and the "tyrannina" group, now recognized as the separate genus Cercomacroides.

...