There are few Australian Bembix that can be unambiguously identified to species level based on the colour pattern alone … but this one can! Commonly referred to as the ‘Panda Sand Wasp’, Bembix vespiformis is unmistakable. There is some variation … the apical segments are not always orange (particularly in the east), and T2-4 may be all black or have white spots. But the large, tapered white spots on T2 are a consistent feature.

Bembix vespiformis

Image courtesy Kerry Stuart
https://inaturalist.ala.org.au/observations/198711178