Parent: Thamnophilidae

└─ Formicivora

└─── Formicivora erythronotos (Black-hooded antwren)

└─── Formicivora grantsaui

└─── Formicivora grisea (Southern white-fringed antwren)

└─── Formicivora iheringi (Narrow-billed antwren)

└─── Formicivora intermedia

└─── Formicivora melanogaster (Black-bellied antwren)

└─── Formicivora rufa (Rusty-backed antwren)

└─── Formicivora serrana (Serra antwren)