Chloraenas Bonaparte, 1854 (unjustified emendation)
Chloraenos Bonaparte, 1856 (lapsus)
Chloroenas Reichenbach, 1852
Lepidaenas Bonaparte, 1854 (unjustified emendation)
Lepidoenas Reichenbach, 1852
Oenoenas Salvadori, 1893
Patagiaenas Bonaparte, 1854 (unjustified emendation)
Patagioenas is a genus of New World pigeons whose distinctness from the genus Columba was long disputed but ultimately confirmed. It is basal to the Columba-Streptopelia radiation. Their ancestors diverged from that lineage probably over 8 million years ago. While the biogeographic pattern of this group suggests that the ancestors of the typical pigeons and turtle-doves settled the Old World from the Americas, Patagioenas may just as well be the offspring of Old World pigeons which only radiated into different genera later, given that the cuckoo-doves (Macropygia) of Southeast Asia also seem to be closely related.[1]
The genus Patagioenas was introduced by the German naturalist Ludwig Reichenbach in 1853 with the white-crowned pigeon (Patagioenas leucocephala) as the type species.[2] The genus name combines the Ancient Greek patageō meaning "to clatter" and oinas meaning "pigeon".[3]
There are 17 species of Patagioenas, which can be assigned to 4 groups based on mtDNA cytochrome b, cytochrome c oxidase subunit I, and NADH dehydrogenase subunit 2, as well as the nuclear β-fibrinogen intron 7 data combined with analyses of vocalizations and morphology. They could be considered subgenera, but one of them remains unnamed as such and thus they are only informally listed here:[4]
caribaea/band-tailed group (Chloroenas): Tails with terminal bands and iridescent neck; rows of low single coos. Apparently the most basal group.[1]
leucocephala group (Patagioenas sensu stricto): Iridescent neck and dark plumage, or white edged outer wing coverts, or scaly appearance; groups of triple coos with the first call in each drawn out except in speciosa