Other Scientific Names
Hylophylax naevia [Sibley and Monroe (1990, 1993)], Hylophylax naevia [BirdLife International (2004)], Hylophylax naevia [Stotz et al. (1996)]
Spot-backed Antbird (Hylophylax naevius) [XC525562]
by Mauricio \u00c1lvarez-Rebolledo (Colecci\u00f3n de Sonidos Ambientales - Instituto Humboldt) from PNN Chiribiquete, cunar\u00e9- Am\u00fa, Colombia (?)
Spot-backed Antbird (Hylophylax) [XC489430]
by Brice de la Croix from Rio Caura south of Maripa, Bolivar, Venezuela (song)
Subspecies
Close relationship with Spotted Antbird (Hylophylax naevioides) and Dot-backed Antbird (Hylophylax punctulatus) suggested by morphology, vocalizations and nest architecture. Listed subspecies and distributions tentative, reflecting current knowledge of plumage and vocalizations and possibly represent more than one species. A taxonomic study currently being undertaken. Other described subspecies are consobrinus (southern Venezuela, north-western Brazil) and obscurus (northern Brazil), both considered inseparable from nominate.
The following 5 subspecies are recognised:
naevius (Gmelin, 1789) - Southern Venezuela (southern Bolívar, Amazonas), the Guianas, south-eastern Colombia (southern from Meta and Vaupés), extreme north-eastern Ecuador and northern Peru (north of R Napo), and Brazil north of R Amazon.
theresae (Des Murs, 1856) - South of R Napo in eastern Ecuador and lowland north-eastern Peru (Loreto), and south-western and south-central Amazonian Brazil (east to R Tapajós, south to southern Amazonas and Rondônia).
peruvianus Carriker, 1932 - Northern Peru foothills (Amazonas, San Martín).
inexpectatus Carriker, 1932 - East-central and south-eastern Peru (Ucayali south to Puno, possibly extending west to base of Andes in Huánuco and Junín), extreme south-western Amazonian Brazil (Acre) and north-western Bolivia (western Pando, La Paz and southern Beni south to extreme south-western Santa Cruz).
ochraceus (von Berlepsch, 1912) - South-eastern Amazonian Brazil (eastern from R Tapajós to R Tocantins, south to northern Mato Grosso).