Archiargiolestes pusillissimus

Archiargiolestes pusillissimus is a species of Australian damselfly in the family Megapodagrionidae, commonly known as a tiny flatwing. It is endemic to south-western Australia, where it inhabits streams, bogs and swamps.

Archiargiolestes pusillissimus is a small damselfly, black metallic in colour with pale markings. It rests with its wings outspread.