Austroscolia soror is a species of scoliid wasp and a common insect found in eastern Australia.

[3] As a member of Austroscolia, the wings have a single recurrent vein and three submarginal cells.

The allied and mostly sympatric A. nitida varifrons has denser punctures on the pronotum, mesothorax, and gaster.

[5] A. commixta of the Northern Territory, known only from the male, has a tuberculate second sternite and has shorter antennae.

Another common species, Australelis anthracina, has two recurrent veins and white setae.