The glittering-throated emerald (Chionomesa fimbriata ), sometimes placed in the genus Polyerata, is a species of hummingbird in the family Trochilidae.It is found in the Amazon Basin, Venezuela, the Guianas, Brazil and Trinidad.Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical dry shrubland, and heavily degraded former forest.
This species was formerly placed in the genus Amazilia. A molecular phylogenetic study published in 2014 found that Amazilia was polyphyletic. In the revised classification to create monophyletic genera, the glittering-throated emerald was moved to the resurrected genus Chionomesa that had been introduced in 1921 by Eugène Simon.
