The Fiery-tailed Awlbill resembles the mangos (Anthracothorax), but has a distinctive sharp upturn at the tip of its bill. The male is overall dark iridescent green with a violet tail. The female, like many of the mangos, has white underparts with a contrasting black central stripe. This species occurs in savanna and forest clearings and edges, particularly around granite outcrops, from eastern Venezuela east to north-central Brazil. An apparently disjunct population occurs in the lowlands of eastern Ecuador. This species "trap-lines" between favored plants, particularly Clusia and Dioclea. Its cup nest is placed on a horizontal branch of a shrub or tree.