Chionomesa is a genus of South American hummingbirds in the family Trochilidae.
The genus contains two species:[1]
These two species were formerly placed in the genus Amazilia. A molecular phylogenetic study published in 2014 found that Amazilia was polyphyletic.[2] In the revised classification to create monophyletic genera, these species were moved to the resurrected genus Chionomesa that had been introduced in 1921 by the French naturalist Eugène Simon.[1][3][4] The genus name combines the Ancient Greek khiōn meaning "snow" with mesos meaning "middle".[5] The type species was designated as the sapphire-spangled emerald by the American ornithologist Charles Wallace Richmond in 1927.[6][7]
Chionomesa is a genus of South American hummingbirds in the family Trochilidae.