sentences:  "Poicephalus" and "Psittacus" from mainland Africa formed the sister group of the Neotropical "Arinae" and "Coracopsis" from Madagascar and adjacent islands may be the closest relative of "Psittrichas" from New Guinea.This subfamily, together with its sister subfamily Arinae of Neotropical parrots, constitutes the family Psittacidae, one of three families of true parrots.Traditionally, the genus "Coracopsis" (vasa parrots) is included in this subfamily, but recent molecular studies show that they are within a different family.