Sjöstedt, 1917 Austroaeschna speciosa is a species of dragonfly in the family Aeshnidae, [3] known as the tropical unicorn darner.

It appears very similar to the more widespread Austroaeschna unicornis (unicorn darner) which inhabits areas in southern Queensland, New South Wales, Victoria and Tasmania.

[4] The tropical unicorn darner is a large dragonfly with a body length around 80mm and wing-span of 100mm.

The abdomen on segments 3 to 8 is black and reddish-brown, heavily marked with pale yellow spots or patches.

[3] The Catalogue of Life has the tropical unicorn darner listed as a subspecies of Austroaeschna unicornis in the family Aeshnidae.