Metallura is a genus that contains nine species, all of them inhabiting different ranges in the Andes mountains. They are small and vary in coloration of the plumage. The Tyrian Metaltail is green overall, showing a white postocular spot, and white plumage on the belly and vent that gives it a scaled pattern on the underparts. The gorget is metallic green, however it is not seen from every angle due to iridescence.

We saw this individual in Rio Blanco Natural Reserve, perched on a small ornamental plant, most probably resting after a full nectar meal.