The Venezuelan Sylph is a restricted-range endemic that is confined to the coastal cordillera of northeast Venezuela. A significant portion of its small range is fortunately incorporated within a national park. Like other members of the genus Aglaiocercus, the male is largely green with an exorbitantly long, violet, then blue tail; the gorget is also blue. Females are much less flamboyantly plumaged, being largely green above and white with green discs below, and they lack the extremely long tail. Venezuelan Sylphs are found in scrubby and forest habitats in montane regions; their behavior appears similar to that of other sylphs, but the literature is rather sparse in original observations to draw upon.