We are still learning about moths in Australia. Found this record from the Shoalhaven which is not far as the moth flies!! https://biocache.ala.org.au/occurrences/8b9c596d-d433-4f9e-b6da-b5c066aa6f78
T. radiosa is a tropical species. The moths have two dark dorsal abdominal stripes, which yours does not have, so I think it is T. queenslandi. (Don H-E)