Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela.
Amazonia from eastern Colombia, southern Venezuela and southern Guianas south to eastern Ecuador, eastern Peru, north-western Bolivia and north-central Brazil (S, in east, to R Tocantins, in Pará).
 
Population
Estimated population is unknown (2010).
Amazonian Scrub Flycatcher (Sublegatus obscurior) [XC141264]
by Guilherme Melo from Zancudococha, Orellana, Ecuador (dawn song)
Amazonian Scrub Flycatcher (Sublegatus obscurior) [XC15516]
by David Geale from Tucuru\u00ed dam, right margin of the lake, state of Par\u00e1, Brazil (song)
Subspecies
No subspecies.
Unpublished molecular data suggest that genus is closely related to Chapada Flycatcher (Suiriri affinis). All members of genus formerly treated as conspecific, but vocal and plumage data support existence of three species, possibly more. Additional study needed in order to resolve species limits.