I think this specimen closely matches (i.e 'correlates') with C. correlata (Ýellow Carpet') as illustrated in Moths of Victoria, Part 3, p.14 but the authors state that (on the supporting disc) it is uncertain whether it really is distinct from C. insulata (''Ínsipid Carpet'), If not, they expect C. insulata may become the accepted name for both species. This is a nice fresh looking specimen, so its a valuable photographic record to have. It is also an apparently elusive species which likes to remain well hidden in daylight. Incidenatally, MoV also recognise a distinct species C. polyxantha (p.18), also giving it the common name ''Yellow Carpet'.
C, correlata and insulate are both recognised on AFD but not by BOLD, which calls all the specimens insulata. Both species are variable in wing pattern and both may have a darker bar across the middle of the forewing or not. With polyxantha the bar is relatively narrow and filled in, and with correlata it is broader with a light centre (or two narrow bars if you like to look at it that way). The plainer specimens are harder to separate.