Austrogynacantha is a genus of dragonfly in the family Aeshnidae. Austrogynacantha heterogena, commonly known as the Australian duskhawker, is the only known species of this genus which is found in Australia and New Caledonia.

Austrogynacantha heterogena is a medium-sized dragonfly, darkly coloured with bright green or yellow markings. It is a vagrant, is active at dawn and dusk, and inhabits still waters.

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