Genus seems to be right, but may not be E. chilonaria. Matches the one ID'd as E. tryxaria at http://mothsoftoowoomba.blogspot.com.au/2016/09/oenochrominae-geometridae-epidesmia.html. In Peter Marriott's 'Moths of Victoria', Part 4 (Ent. Soc. Vic., 2012), 6 spp of Epidesmia are illustrated (including chilonaria and tryxaria), but your moth doesn't match any of them well.