Photo credit to Jurgen Otto from New South Wales, whose Flickr photostream has hundreds more excellent macro photos of this and other spiders.
This species is discussed at length in a paper he published in Peckhamia 103.1 (November 2012); see pp 43-44 for photos of how the opisthosomal fan shown above is deployed during courtship.
There are also videos at his YouTube channel, one of which I featured in TYWKIWDBI in 2011.
I went and read the extensive paper from Peckhamia and now my skin is crawling, eebie jeebie!
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