This is the male of the 'Blue ant' or Bluebottle we all knew as kids - a large, wingless female wasp in metallic electric blue with red legs.
Although not often seen there were several found on this day.
This male "Blue Ant" wasp was of a moderate size-15 mm. It had black head, eyes, thorax and abdomen and short black antennae. The abdomen had 3 visible white markings on both dorsal and ventral aspects and perhaps a pair of small white patches at the waist. The anterior thoracic margin was also white.
Wings were tinted and the leading edges appeared black and thickened. Femurs, tibiae and tarsi were brown.
Spotted on tea-tree.
Despite the name it is a parasitic wasp. Females are wingless & often seen wandering on the ground looking for mole crickets. They lay an egg on the paralysed cricket, with the cricket then being used as food for the developing wasp larva.