Yes, I think Chrysolarentia heterotropa is highly likely, see CSIRO Moths online: https://moths.csiro.au/species_taxonomy/chrysolarentia-heterotropa/ However, the angle of the photo makes it a little uncertain as to whether the prominent main line in the forewing is sufficiently curved tio match that species. There are very few photos online of that species to compare it with.
Thanks. I thought heterotropa over likely alternative, cataphaea, because of wing patterning https://www.inaturalist.org/taxa/892111-Chrysolarentia-cataphaea/browse_photos. But as you say, photos limited.