Sometimes placed in genus Saucerottia. Closely related to A. beryllina; reports of hybridization in a small zone of sympatry in Guatemala and El Salvador seem to be unproven, and may be erroneously based on variable tail coloration of that species. In recent literature only two races have been recognized, with impatiens (from Costa Rica) ignored, perhaps because only two specimens exist; morphological characters, however, indicate that it should be considered valid. Race guatemalae considered “as distinct as many recognized hummingbird species”#R, with a more purplish, less coppery back and rump and less extensive rufous in wings (these characters seem correlated) (2); specimens in NHMUK have a far more metallic green crown, but this requires confirmation; situation merits further study. Races show highly disjunct distribution. Three subspecies recognized.
Food and feeding
Status and conservation
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