Austroaeschna cooloola is a species of large dragonfly in the family Aeshnidae,[3] known as the Wallum darner.

[4] It has been found in south-eastern Queensland, Australia, where it inhabits sandy and densely vegetated streams.

[5] Austroaeschna cooloola is a dark brown to black dragonfly with blue markings.

It appears similar to the more widespread unicorn darner, Austroaeschna unicornis,[4] and the tropical unicorn darner, Austroaeschna speciosa, found near Cairns in Far North Queensland.

[2]