Looks a lot like A. chloropyrus shown on the Australian Museum site but not much like A. brunnipennis from that site (same with the Xmas Beetle App by them).
The Australian Museum site and app is outdated in this respect. A. chloropyrus is no longer a valid name, it's now a synonym of A. brunnipennis after a recent paper reviewing the type specimens. A. brunnipennis used to refer to a different species, which is now called A. flavipennis.