Episynlestes albicaudus is a species of Australian damselfly in the family Synlestidae, commonly known as a southern whitetip. It is endemic to south-eastern Queensland and north-eastern New South Wales, where it inhabits streams and pools in rainforests.
Episynlestes albicaudus is a large, very slender damselfly, coloured a dull bronze-black with white markings. It often perches with its wings outspread.
The species was described by Robin Tillyard in 1913 as Synlestes albicauda. It is now placed in the genus Episynlestes, and the species name has been adjusted to albicaudus to match the masculine gender of the genus.