South-western Amazonian Brazil (southern Acre and adjacent south-western Amazonas), south-eastern Peru (southern Ucayali, eastern Cuzco, Madre de Dios) and north-western Bolivia (Pando, northern La Paz).
Population
Estimated population is unknown (2010).
Goeldi's Antbird (Akletos goeldii) [XC537648]
by id from Purus River, Boca do Acre, State of Amazonas, Brazil (alarm call)
Goeldi's Antbird (Akletos goeldii) [XC226322]
by GABRIEL LEITE from Manu Amazonia Lodge, Cuzco, Peru (song)
Subspecies
Genus appears not to represent a monophyletic grouping, but traditional arrangement maintained pending further phylogenetic study. Considered closely related to White-shouldered Antbird (Akletos melanoceps), having similarities in morphology and voice, but differences in location of hidden white patches and possibly in nest architecture may indicate more distant relationship. They appear to be sympatric in Brazil along upper R Juruá (Acre). Both taxa and Plumbeous Antbird (Myrmelastes hyperythrus), Sooty Antbird (Hafferia fortis) and Blue-lored Antbird (Hafferia immaculata) often thought to form a species group on basis of large size, but more work needed in order to confirm a close relationship among them.
BirdLife International Species Factsheet