Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
   Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
     Infraclass Neoaves Sibley et al., 1988 see Subcohort Neoaves Sibley et al., 1988
       Parvclass Passerae see Superorder Passerimorphae Sibley et al., 1988
         Superorder Apodimorphae see Order Apodiformes Peters, 1940
           Order Trochiliformes Wagler - hummingbirds see Suborder Apodi Peters, 1940
             Family Trochilidae Vigors, 1825 - hummingbirds
               Subfamily Trochilinae Jardine, 1833 - typical hummingbirds
                 Genus Acestrura Gould, 1861 see Genus Chaetocercus Gray, 1855
                   1 Acestrura mulsant (Bourcier, 1842) - white-bellied woodstar see Chaetocercus mulsanti (Bourcier, 1842)
                   2 Acestrura bombus (Gould, 1871) - little woodstar see Chaetocercus bombus Gould, 1871
                   3 Acestrura heliodor (Bourcier, 1840) - gorgeted woodstar see Chaetocercus heliodor (Bourcier, 1840)
                   4 Acestrura astreans Bangs, 1899 - Santa Marta woodstar see Chaetocercus astreans (Bangs, 1899)
                   5 Acestrura berlepschi (Simon, 1889) - Esmeraldas woodstar see Chaetocercus berlepschi Simon, 1889