 members of the parrot genus psittacula or afro-asian ringnecked parakeets as they are commonly known in aviculture originates found from africa to south-east asia. it is a widespread group, with a clear concentration of species in south asia, but also with representatives in africa and the islands of the indian ocean. this is the only genus of parrot which has majority of its species in continental asia. of all the extant species only psittacula calthropae, psittacula caniceps and psittacula echo do not have a representative subspecies in any part of mainland continental asia. the rose-ringed parakeet, psittacula krameri, is one of the most widely distributed of all parrots. the other two asian genera, loriculus and psittinus are represented by only two and one species respectively, which occur in the mainland part of asia. the majority of the loriculus species occur on islands. moreover since loriculus is spread across both sides of the wallace line it can be considered more australasian than asian. these parrots are mostly green plumaged, with adults having coloured heads. the bill is stout, and the tail is long and graduated. ==species and phylogeny== * newton's parakeet, psittacula exsul - extinct (c.1875) * mauritius parakeet, psittacula echo * rÃ©union parakeet, psittacula eques - extinct mid-18th century * mascarene grey parakeet, psittacula bensoni - extinct (c.1764) * rose-ringed parakeet, psittacula krameri * mauritius parakeet, psittacula echo * alexandrine parakeet, psittacula eupatria * seychelles parakeet, psittacula wardi - extinct (1883) * plum-headed parakeet, psittacula cyanocephala * blossom-headed parakeet, psittacula roseata * slaty-headed parakeet, psittacula himalayana * grey-headed parakeet, psittacula finschii * blue-winged parakeet, psittacula columboides [[image:psittacula.jpg|frame|right|phylogeny of the genus psittacula based on existing molecular evidence.groombridge, jim j. et al. (2004): molecular phylogeny and morphological change in the psittacula parakeets. molecular phylogenetics and evolution 31(1):96-108. [http://www.sciencedirect.com/science?_ob=articleurl&_udi=b6wnh-49mf065-4&_user=3446078&_
Bird_genera Parrots Psittacula Psittaculini