Lepidoptera Butterfly House recognises two Australian species A. ucens and A. queenslandicus. The former shows a single black dot centrally located in each forewing and hindwing, whereas the latter apparently lacks these dots although it does show a greenish tipped abdomen and a greenish flush on the forewings (see https://lepidoptera.butterflyhouse.com.au/lyma/lucens.html https://lepidoptera.butterflyhouse.com.au/lyma/queenslandica.html However, this specimen apparently lacks these identifying marks. Bold Australia recognises and illustrates a third species which apparently shows single balck dots in the mid forewing only. https://bold-au.hobern.net/specimen.php?processid=WALPI821-18
Peter Mackey, 2016 Review of the Australian species of Arctornis Germar, 1810 (Lepidoptera:Erebidae:Lymantriinae), Australian Entomologist, Volume 43, Part 4 (2016), pp. 174-177. Describes 5 new species, which includes lucens and queenslandica all from N QLD