There are no P. productella specimens at, for instance, http://www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=123641 with dark markings as extensive as this has.
yes, it is a problem. I think I decided on the ID looking at specimens in Melb. Museum years ago. No guarantee Id was correct. I don't think the specimens of Prodelodes samphoras on https://bold-au.hobern.net/specimens.php?taxid=414505 have dark markings as extensive as this one either