Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Venezuela.
Eastern Colombia, southern Venezuela and the Guianas through eastern Ecuador, north-eastern Peru, northern Bolivia and most of Brazil to Paraguay and north-eastern Argentina (Misiones).
Population
Estimated population is unknown (2010).
Amethyst Woodstar (Calliphlox amethystina) [XC220081]
by Breno Dias Vitorino from La Sirena, El Palmar, Bolivar, Venezuela (call)
Amethyst Woodstar (Calliphlox amethystina) [XC178079]
by Fernando Igor de Godoy from Parque Nacional da Serra da Canastra, S\u00e3o Roque de Minas, Minas Gerais, Brazil (flight call)
Subspecies
Occasionally treated as sole member of present genus. Genus also considered to include all species of currently recognized genera Tilmatura, Doricha, Microstilbon, Calothorax and sometimes also Thaumastura, on grounds that females are very similar, males differing essentially in specialized details of plumage. Form "Calliphlox orthura" (Cayenne) may represent immature male of present species.
BirdLife International Species Factsheet