High-elevation hummingbird endemic to the Andes of southern Ecuador. Plumage is mostly green with a purple throat, and tail is blue on top and greenish underneath. Bill is short and straight. Female has underparts scaled with gray or buff. Compared to the common and widespread Tyrian Metaltail, Violet-throated lacks a rusty tail and has a purple (not green or buffy) throat. Inhabits montane scrub and edge of stunted forest. Most sightings come from in and around Cajas National Park.