The male has a blue throat and long tail, while the female has a white throat and shorter tail. It is confined to northeastern Venezuela's mountains and searches for nectar by day in humid forest and scrub.
The male is about 22 cm long, with 14–15 cm of that length in the outer tail feathers. It has a green body, blue throat, and violet outer tail feathers that turn blue toward the tips. The female is about 9.5–11 cm long, with a shorter tail and white throat, breast, and belly.
It is active by day and mainly takes nectar in humid forest and scrub. BirdForum reports observations around 1,450–1,800 m, while Oiseaux.net gives a broader elevation range for the habitat data.
An extinction-risk assessment has not been added yet.