(Austroagrion exclamationis)
Austroagrion exclamationis is a species of damselfly in the family Coenagrionidae, commonly known as a northern billabongfly. It is a small damselfly; the male is blue and black. It has been recorded from New Guinea and northern Australia, where it inhabits streams and still water. Austroagrion is a genus of damselflies belonging to the family Coenagrionidae. Species of Austroagrion are small damselflies; males are black with blue or green markings while females are paler. Austroagrion occurs in Papua New Guinea, New Caledonia and Australia.