" Lestoidea Tillyard, 1913 " : means: • the genus name: Lestoidea , • the author of that genus name: Tillyard, • and the date: 1913 of Tillyard's original first publication of this genus name . .
Looking at this sighting again, the general form of the larva suggests to me Lasiocampidae family, eg. Pinara (genus), Perhaps even P. metaphaea https://lepidoptera.butterflyhouse.com.au/lasi/metaphaea.html but its difficult to be sure. There is a dearth of images online of the instars of any moth species, let alone this one. A pity the head is in shadow because its shape and markings may well have been definitive.