Hummingbirds (Trochilidae)

White-bellied Woodstar (Chaetocercus mulsant) - HBW 5, p. 677

French: Colibri de Mulsant German: Weißbauchelfe Spanish: Colibrí de Mulsant
Other common names: Mulsant’s Woodstar

Taxonomy: Ornismya Mulsant Bourcier, 1842, Bogotá, Colombia.
Usually placed in genus Acestrura, along with C. bombus, C. heliodor, C. astreans and C. berlepschi, but no evidence in external morphology justifies treatment in a genus separate from C. jourdanii. Two similar names for this species proposed by same author in quick succession, leading to some confusion: name mulsant was probably described very slightly earlier (perhaps roughly one month) than mulsanti. “Calothorax decoratus” is probably a hybrid of present species and C. heliodor. Monotypic.

Distribution: C & E Andes of Colombia patchily through Ecuador and Peru to C Bolivia (Yungas of Cochabamba).