While not a great photo, this is included because it shows the wing venation well enough to tell us that the genus is not Paralastor, despite the fact that the previous species was identified as Paralastor and looks very similar.
Classification
from Australian Faunal Directory
Order Hymenoptera - Wasps, Ants, Bees and Sawflies, 12202 named species in Australia
Family Vespidae - Mud Wasps or Potter Wasps, 368 named species in Australia
Subfamily Eumeninae
Genus ?
Species ?