South-eastern Brazil in coastal region from southern Bahia south to Santa Catarina and northern Rio Grande do Sul, extending inland in south to western Paraná.
 
Population
Estimated population is unknown (2010).
Star-throated Antwren (Rhopias gularis) [XC334827]
by Roney Souza from Fazenda Angelim, Ubatuba SP, Brazil (flight call, song)
Star-throated Antwren (Rhopias gularis) [XC581136]
by Ciro Albano from Reserva Biol\u00f3gica do Tingu\u00e1, Nova Igua\u00e7u, RJ, Brazil (song)
Subspecies
Relationships uncertain. Often placed with the Western Stipple-throated Antwren (Epinecrophylla haematonota) group (the "stipple-throated antwren assemblage") because of its dotted throat, but that placement is put in question by the finding of a cup rather than globular nest. Also, its behaviour suggests that it may be related to Rufous-bellied Antwren (Isleria guttata) and Plain-throated Antwren (Isleria hauxwelli). Its vocalizations appear to be intermediate.