Locally in southern Venezuela (south-western Bolívar, southern Amazonas), extreme eastern and southern Colombia (Guainía, Vaupés, Caquetá), eastern Ecuador, north-eastern and east-central Peru (Loreto, Ucayali) and west-central Amazonian Brazil (north-western and south-central Amazonas, northern Rondônia).
 
Population
Estimated population is unknown (2010).
Pearly Antshrike (Megastictus margaritatus) [XC58402]
by GABRIEL LEITE from Ome Ecological Station, Purite River, Amazonas dep. 70 Km N of Leticia, Colombia (song)
Pearly Antshrike (Megastictus margaritatus) [XC660273]
by Nick Athanas from PSF19, Colombia (song)