Austronia rubrithorax is a small species of parasitoid wasp in the family Austroniidae. It is endemic to moist forests of southern Australia and Tasmania.
Description and identification First described by Riek, E.F in 1955, A. rubrithorax is around in length, while females also possess a partially retracted oviposter. The head and abdomen are a darker brown while the thorax and legs are a brighter copper red color.
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