Woodlands Historic Park Spider

Unidentified Orb-weaving Spider at Woodlands Historic Park
Unidentified Orb-weaving Spider, mid Dec.
Backobourkia species wrapping it's prey at Woodlands Historic Park
A similar spider wrapping it's prey (A Tri-colour Soldier Beetle), early Mar.

Classification

Infraorder Araneomorphae - Spiders with Opposing Fangs
Family Araneidae - Orb weavers, 232 named species in Australia
Sub-family aranaeia - Classic Orb weavers
Genus Backobourkia
Species ?