While T. pygaea appears both on LBH: http://lepidoptera.butterflyhouse.com.au/cosm/pygaea.html and the ALA: https://bie.ala.org.au/species/https://biodiversity.org.au/afd/taxa/ac43a6b4-2206-43ca-8d61-dbd644cb1219 similar looking moths also appera as leptozestis (genus) species on the ALA eg. by Rebecca Stroud: https://biocache.ala.org.au/occurrences/c0bd1de5-39e7-417b-8fef-b44b32dc7358
Following further discussion on this matter with Glann Cocking today we agreed to create the category 'Trachydora sp. nr pygaea' to cover this and potential further sightings. See also the more detailed discusion and responses for. CNM Sighting No. 4416743.