Placed in the same species group as C. antipodes and C. australis, and so similar in several structural features. However, the colour pattern (while variable) is quite distinctive … and the female has a particularly broad head.

Note that the petiole is extensively yellow, although black basally and often with some red (as here). T2 has a yellow band just before the posterior margin, which extends to include the lateral margins.

https://inaturalist.ala.org.au/observations/15207162
(image courtesy Reiner Richter)

An abundant and widespread species throughout eastern Australia. The colour varies in both hue and extent: from yellow to orange; some individuals extensively marked, others far less so.

Compare this male from north NSW with the following one from central Victoria. Note differences in the colour of the petiole and overall hue of the markings.

However males consistently have T2 yellow & T3 wholly (or almost wholly) black.

https://inaturalist.ala.org.au/observations/258728419