Brazil, French Guiana, Guyana, Suriname, Venezuela.
Extreme eastern Venezuela (eastern Bolívar, eastern Delta Amacuro), northern and central Guyana, Suriname (except extreme south-west), French Guiana, and northern Brazil (Amapá south to eastern Pará and northern and western Maranhío; also isolated in north-eastern Amazonas and western Pará).
 
Population
Estimated population is unknown (2010).
Voice
Series of exceptionally sweet rising and falling phrases consisting of variations on 2-3 standard phrases, delivered slowly and hesitantly. Call is a sharp and high-pitched 'spink'.
Red-and-black Grosbeak (Periporphyrus erythromelas) [XC104023]
by from Belterra, PA - Bacia 261, Brazil (?)
Red-and-black Grosbeak (Periporphyrus erythromelas) [XC9220]
by Peter Boesman from Rio Grande, Sierra de Imataca, Bolivar, Venezuela (call, song)
Subspecies
No subspecies.
Closely affiliated with Rhodothraupis.
Similar Species
Female may be confused with Yellow-green Grosbeak (Caryothraustes canadensis) but in that species the black is restricted to the foreface and does not extend on to the crown or ear coverts.
References
See References.