P. L. Sclater and Salvin, 1876,
This species, along with D. indigotica, D. caerulescens and D. cyanea, has sometimes been placed in separate genus, Diglossopis, on grounds of some important anatomical features (of corneous tongue, bony palate, maxillo-palatines and mandible, and structure of rhamphotheca), all of which may set them apart from present genus; these four species, with a proportionately smaller bill hook, may have evolved only once, while all other flowerpiercers (with larger hook) may have evolved multiple times; recent molecular-genetic data, however, indicate that these four “small-billed” species do not form a monophyletic group, and all flowerpiercers are best retained in a single genus. Geographical variation of present species minimal, race tyrianthina differing only slightly from nominate; species perhaps better treated as monotypic. Two subspecies currently recognized.
Food and feeding
Status and conservation
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