Judging by the postings on the ALA for D padockina it is a variable species and quite a few have chevrons in evidence at the base of the forewing, others are plain (-there is an out of place M. convecta there too!) . I am not sure but I think the general colouration, the white bordered ''blob' mark in the wing and the checkered forewing outer margin are suggestive of D, padockina to me. See: https://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:afd.taxon:8770492b-ee4c-4bec-b319-cb8d8fb0a492#gallery