We can tell this is a male because of the relatively long antennae - compare the previous photo.
Classification
from Australian Faunal Directory
Order Hymenoptera - Wasps, Ants, Bees and Sawflies, 12202 named species in Australia
Family Scoliidae - Hairy Flower Wasps, 20 named species in Australia, 5 in Victoria
Genus Austroscolia
Species Austroscolia soror