J. F. Gmelin, 1788,
Closely related to T. ridgwayi and T. colombica; species limits unclear, and all three have been considered conspecific. Alternatively, mostly dull-crowned and more green-backed forms are sometimes separated in present species from the other two, which are then lumped as another species with glittering crown and more violet on back. Of races currently recognized, most are based on variations in coloration of adult male, and several doubtfully valid. Races baeri and eriphile, with glittering green frontlet, were in the past separated as T. eriphile, but former intergrades with adjacent dull-crowned races in Brazil, indicating potential pitfalls of attributing taxonomic significance to this feature. Race jelskii represents zone of intergradation of viridipectus, simoni and boliviana; furcatoides intergrades with balzani and baeri where their ranges meet in NC & C Brazil. Described form Thalurania lerchi, known from Bogotá trade skins, is apparently a hybrid between present species and Chrysuronia oenone; form Eucephala scapulata, known from single specimen from French Guiana, is probably a hybrid of present species with Chlorostilbon notatus. Name tschudii should perhaps replace jelskii; if so, jelskii may be correct name for current race boliviana. Proposed race taczanowskii (NE Peru) not reliably separable from viridipectus. Thirteen subspecies currently recognized.
Food and feeding
Status and conservation
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