Esmeraldas Woodstar Chaetocercus berlepschi
Version: 1.0 — Published June 4, 2010
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The Esmeraldas Woodstar (C. berlepschi), White-bellied Woodstar (C. mulsant), Little Woodstar (C. bombus), Gorgeted Woodstar (C. heliodor), and Santa Marta Woodstar (C. astreans) were long classified in the genus Acestura. All of these species were later merged into the genus Chaetocercus by Schuchmann (1999); previously, Chaetocercus contained only a single species, the Rufous-shafted Woodstar (C. jourdanii). The overall consensus indicates that there is no reason to split Acestrura from Chaetocercus based on morphological characters (Remsen et al. 2010), and Chaetocercus receives priority. The species berlepschi is monotypic.