Pseudagrion lucifer is a species of damselfly in the family Coenagrionidae, commonly known as a citrine-headed riverdamsel. It is found in northern Australia, where it inhabits streams.
Pseudagrion lucifer is a medium-sized damselfly. Males of the species have yellow faces and pruinose sides to their bodies and start of their tails; males from Cape York in Queensland have cream-yellow faces, whilst those from the Kimberley region in Western Australia have bright yellow faces.
Pseudagrion lucifer appears similar to Pseudagrion ignifer which is found in eastern Australia.