Adult males have a blackish crown, a glittering green forehead, and a small white spot behind the eye.

Their upper back is shining dark green that transitions through greenish copper to the golden orange rump.

The adult female's forehead is plain green and the postocular spot white to buffy orange; the rest of the upperparts are colored like the male's but are duller.

[7] The Perija starfrontlet is found in the Serranía del Perijá that straddles the border between northeastern Colombia and northwestern Venezuela.

It has been recorded feeding from plants of genera Bomarea, Cavendishia, Fuchsia, Macleonia, Mutisia, and Palicourea.

[7] As of early 2023 neither xeno-canto nor the Cornell Lab of Ornithology's Macaulay Library had any recordings of the Perija starfrontlet's vocalizations.