No it is a Xyloryctidae. They bore in various trees. At night they sneak out and cut twigs/leaves for food which they leave stick ing out their 'door' and consume in safety in their bore hole. Yes it is frass too. e.g. see the plate from State Lib. of N.S.W. down this page https://xyloryctinemothsofaustralia.blogspot.com/search?q=Cryptophasa
Presuming the suggested ID is correct this is a well-marked example of the species. https://bold-au.hobern.net/specimen.php?processid=LNSWC078-06 https://bie.ala.org.au/species/https://biodiversity.org.au/afd/taxa/9eaa2744-7921-4cb7-acfa-10f53d88cad9 A first sighting of this species on NatureMapr for the Canberra and Southern Tablelands region..