The Venezuelan sylph (Aglaiocercus berlepschi) is an Endangered species of hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae.

Several additional species have been proposed for inclusion but they have almost conclusively been shown to be hybrids with kingii or one of the other sylphs.

They have a glittering blue gorget and bronzy green underparts with puffy white thighs.

The inner tail feathers are short and blue-green; the outer ones are very long and deep violet at the base becoming blue at the end.

Their tail is short and slightly forked, blue-green with white tips on the outer feathers.

It inhabits subtropical forest and scrubland on coastal mountain slopes between 1,450 and 1,800 m (4,800 and 5,900 ft) of elevation.

[6] The Venezuelan sylph feeds on nectar from flowering vines, shrubs, and trees, especially those of genus Inga.