Chlorostilbon is a genus of hummingbird in the family Trochilidae, known as emeralds (as are some hummingbirds in the genera Amazilia and Elvira). A single species, the blue-chinned sapphire is variously placed in the monotypic genus Chlorestes or in Chlorostilbon. The taxonomy of the C. mellisugus superspecies is highly complex and, depending on view, includes 1-8 species. All species in this genus have straight black or black-and-red bills. The males are overall iridescent green, golden-green or bluish-green, and in some species the tail and/or throat is blue.[1] The females have whitish-grey underparts, tail-corners and post-ocular streak.

Taxonomy

The genus Chlorostilbon was introduced in 1853 by the English ornithologist John Gould to accommodate a single species to which Gould gave the binomial name Chlorostilbon prasinus.[2] This taxon is now considered as a subspecies of the glittering-bellied emerald Chlorostilbon lucidus pucherani.[3][4][5]

Species

The genus contains ten species:[5]

MaleFemaleCommon nameScientific nameDistribution
Blue-tailed emeraldChlorostilbon mellisugus
Chiribiquete emeraldChlorostilbon olivaresi
Red-billed emeraldChlorostilbon gibsoni
Glittering-bellied emeraldChlorostilbon lucidus
Short-tailed emeraldChlorostilbon poortmani
Narrow-tailed emeraldChlorostilbon stenurus
Green-tailed emeraldChlorostilbon alice
Coppery emeraldChlorostilbon russatus
Garden emeraldChlorostilbon assimilis
Western emeraldChlorostilbon melanorhynchus

References

  1. Stiles, F. Gary (1996). "A New Species of Emerald Hummingbird (Trochilidae, Chlorostilbon) from the Sierra de Chiribiquete, Southeastern Colombia, with a Review of the C. mellisugus Complex". The Wilson Bulletin. 108 (1): 1–27. ISSN 0043-5643. JSTOR 4163634.
  2. Gould, John (1853). A Monograph of the Trochilidae, or Family of Humming-Birds. Vol. 5. London: self. Plate 355 and text (Part 5 Plate 14). The 5 volumes were issued in 25 parts between 1849 and 1861. Title pages of all volumes bear the date of 1861.
  3. Peters, James Lee, ed. (1945). Check-List of Birds of the World. Vol. 5. Cambridge, Massachusetts: Harvard University Press. p. 36.
  4. Dickinson, E.C.; Remsen, J.V. Jr., eds. (2013). The Howard & Moore Complete Checklist of the Birds of the World. Vol. 1: Non-passerines (4th ed.). Eastbourne, UK: Aves Press. p. 121. ISBN 978-0-9568611-0-8.
  5. 1 2 AviList Core Team (2025). "AviList: The Global Avian Checklist, v2025". doi:10.2173/avilist.v2025. Retrieved 23 April 2026.