Eastern and south-eastern Brazil (Pernambuco south to Santa Catarina), eastern Paraguay (eastern from Canendiyú, Caaguazú) and north-eastern Argentina (Misiones).
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 5,000,000 - 50,000,000 (2010).
Plain Xenops (Xenops minutus) [XC261942]
by Olaf Jahn from Esmeraldas: Playa de Oro, village and vicinity, R\u00edo Santiago, Ecuador (song)
Plain Xenops (Xenops minutus) [XC528073]
by JAYRSON ARAUJO DE OLIVEIRA from Reserva Biol\u00f3gica das Perobas, Tuneiras do Oeste, Brazil (call, song)
Subspecies
The following 11 subspecies are recognised:
mexicanus Sclater, PL, 1857 - Southern Mexico (from Veracruz) south to Honduras.
ridgwayi Hartert & Goodson, 1917 - Nicaragua south to central Panama.
littoralis Sclater, PL, 1862 - Eastern Panama (Darién) and northern Colombia (east to Cauca and Magdalena valleys) south to western Ecuador and extreme north-western Peru (Tumbes).
neglectus Todd, 1913 - North-eastern Colombia (south to Cundinamarca) and north-western Venezuela (east to Miranda).
remoratus Zimmer, JT, 1935 - Eastern Colombia (eastern from Meta and Caquetá), south-western Venezuela (south-western Amazonas) and north-western Brazil (north-western Amazonas).
ruficaudus (Vieillot, 1816) - Eastern Colombia (Vichada), southern and eastern Venezuela (Amazonas and Bolívar east to Paria Peninsula), the Guianas and northern Brazil (east of R Negro).
olivaceus Aveledo & Pons, 1952 - Perijá Mts of north-eastern Colombia and north-western Venezuela.
obsoletus Zimmer, JT, 1924 - Eastern Ecuador, eastern Peru, western Brazil (south of R Amazon, east to R Madeira) and northern Bolivia (south to northern Santa Cruz).
genibarbis Illiger, 1811 - Central Brazil (R Madeira east to Piauí, south to southern Mato Grosso and northern Goiás).
minutus (Sparrman, 1788) - Eastern and south-eastern Brazil (Pernambuco south to Santa Catarina), eastern Paraguay (eastern from Canendiyú, Caaguazú) and north-eastern Argentina (Misiones).
alagoanus (Pinto, 1954) - North-eastern Brazil (Paraíba, Pernambuco, and Alagoas).