Griseargiolestes bucki

Griseargiolestes bucki is a species of Australian damselfly in the family Megapodagrionidae, commonly known as a turquoise flatwing. It is endemic to the Barrington Tops area of New South Wales, where it inhabits streams, bogs and seepages.

G. bucki is a medium-sized damselfly, black-green metallic in colour with pale markings, and slightly pruinescent. Like other members of the family Megapodagrionidae it rests with its wings outspread.

G. bucki appears similar to Griseargiolestes albescens, which is found in coastal areas of north-eastern New South Wales and south-eastern Queensland.