Macromia tillyardi is a species of dragonfly in the family Macromiidae,[3][4] known as the Australian cruiser.

[5] It is a large, black to metallic green dragonfly with bright yellow markings on its abdomen, clear wings and long legs.

[5] It is found in northern Australia,[6] where it inhabits streams and pools.

[7] Robin Tillyard collected the type specimen of Macromia tillyardi in 1905 and passed it onto René Martin for publication in his about-to-be-published work on Cordulines, in Collections zoologiques du baron Edm.

It will be sufficient in this paper to give a short description only, so that the insect may be recognised by Australian collectors (Tillyard, 1906)[8]Tillyard wrote his description and published it in November 1906,[8] several months before Martin's work was published on 17 January 1907.