A species of
Psittaculidae, allied to the tribe
Polytelini, a sister taxon to
Polytelis swainsonii, the superb parrot, and
P. alexandrae, the princess parrot. The epithet
anthopeplus is derived from ancient Greek, a compound of
anthos, flower, and
peplos, robe. There are two populations, morphologically similar though isolated, within the species distribution range of Southern Australia. These are described as subspecies: •
Polytelis anthopeplus anthopeplus, Southwest Australia •
Polytelis anthopeplus monarchoides Schodde, 1993. Southeast Australia of the first description. The regent parrot was first depicted by English author and artist
Edward Lear in 1831. Lear included two images in
Illustrations of the family of Psittacidae, or parrots, an early folio of lithographs with brief captions. The first plate reproduced a female specimen, given the title
Palæornis anthopeplus (1831), the second was a male,
Palæornis melanura (pt. 12, 1832), drawn by Lear in England. The regional origin of the parrots, presented as two species, is not supplied in the work, so the type specimen or locality for each was not formally nominated and assumed to be lost. A 1912 review by
G. M. Mathews stated the source of the specimens was New South Wales, and occurred in a range that excluded the Southwest of the country. When correcting this omission, Mathews proposed the taxa named
anthopeplus and
melanura in Lear's folio was only found in the east and that the southwest population was a new taxon, nominated
westralis. The arrangement and typification of the geographically separate groups was largely ignored by authors, until
Richard Schodde published a conclusion that the origin of both Lear's specimens were from a Western Australian population, based on differences in colouration of the female plumage which he observed in the plates. Further evidence was provided by examining any possible collection and transport of the species to England, living or skinned, a possible holotype held at the
Liverpool Museum, and comparison other collected data. Subsequently, the nominate subspecies of the West became
P. a. anthopeplus and the eastern isolate was given a
neotype and assigned to subspecies
P. anthopeplus monarchoides. The species is also known variously as the rock pebbler, rock peplar, Murray smoker, Marlock parakeet, yellow king-parrot and regent parakeet. The indigenous names for the southwest subspecies in the
Nyungar language, noted by
Dom Serventy, include
Waukanga and
Wouk-un-ga, and
Walkinger recorded at
Avon River. ==Description==