This Darner is probably the easiest species in the genus Austroaeschna to identify due to the very distinctive pattern of white patches edged in black along its abdomen. The female Forest Darner has 5 black-lined white spots along each side of its abdomen whereas the male has 6. This is easier to see from a side view.
I saw one female Forest Darner flying in a sunny clearing adjacent to some cool temperate rainforest at Deer Vale NSW. It landed low down on some grass several times before doing the disappearing trick. The stripes on its synthorax had a greenish tinge which was also seen in the male flying above the creek at Ebor.
I was lucky to be at our creek when a female Forest Darner arrived and started laying eggs in the bank at the edge of the creek. It did not stay for long. Notice how the markings on this female are a bright yellowy-green.