Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       Order [Psittaciformes] Wagler, 1830 [monotypic] - parrots
         Family Psittacidae Illiger, 1811 - cockatoos and parrots
           Subfamily Psittacinae Illiger, 1811 - typical parrots
             Tribe Arini Gray, 1840
               Genus Forpus Boie, 1858
                 Forpus xanthopterygius (Spix, 1824) - blue-winged parrotlet
                   1 Forpus xanthopterygius spengeli (Hartlaub, 1885)
                   2 Forpus xanthopterygius crassirostris (Taczanowski, 1883)
                   3 Forpus xanthopterygius flavescens (Salvadori, 1891)
                   4 Forpus xanthopterygius flavissimus Hellmayr, 1929
                   5 Forpus xanthopterygius xanthopterygius (Spix, 1824)