Just landed in front of me on the track on my way back to the car. Didn't recognise it. Another new one for me. Used the Guide to Dragonflies of Australia 2nd Ed Theischninger/Hawking to find a match.
You might also find the 'Dragonflies and Damselflies of Victoria and Tasmania' book very useful. I bought it semi-recently and it's been a massive help for identifying.