Eastern Bolivia (eastern Santa Cruz), southern Brazil (southern Mato Grosso, southern Goiás, southern Maranhío, Minas Gerais and Espírito Santo south to north-western Rio Grande do Sul), eastern Paraguay and north-eastern Argentina (Misiones, north-eastern Corrientes).
Population
Estimated population is unknown (2010).
Southern Antpipit (Corythopis delalandi) [XC268894]
by Jerome Fischer from Green Trail, Reserva Ecol\u00f3gica de Guapia\u00e7u, RJ, Brazil (song, bill snap)
Southern Antpipit (Corythopis delalandi) [XC221676]
by Eric DeFonso from Carmo road, Rio de Janeiro, Brazil (song)
Subspecies
Genus was for long placed in the family Formicariidae or together with the gnateaters (Conopophaga) in the Conopophagidae. Numerous anatomical, behavioural and genetic characters, however, indicate affinities within present family, probably closest to Pseudotriccus. Forms a superspecies with Ringed Antpipit (Corythopis torquatus) and the two are possibly conspecific, but differ vocally, also slightly in plumage, and ranges apparently overlap in central Brazil (upper R Xingu drainage).
BirdLife International Species Factsheet