I suggested Scieropepla reversella because of the darker base to the palps and the streaky markings on the forewings https://bold-au.hobern.net/specimen.php?processid=NSWHM1869-11 https://biocache.ala.org.au/occurrences/458fcae2-29ea-4af2-ad32-5c8e7756fc1d https://lepidoptera.butterflyhouse.com.au/xylo/reversella.html Can't sreally ee the dark base to the palps in this iNaturalist (NZ) image. https://inaturalist.nz/taxa/396887-Scieropepla-typhicola/browse_photos Not sure S. typihicola has this short darker mark on the basal section of the palps, as Con Boekel's local Scieropepla genus images seem to show. Might be safer not to allocate a species at this stage,
The BOLD (Hobern) specimen is all white (not pink with flecks) as is the pinned specimen on Don's site. On BOLD all specimens of Scieropepla reversella are white or worn (the shiny white scales have worn off). http://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=329678 What about Scieropepla typhicola http://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=329677 I suggest many of the NM specimens ID'ed as S. reversella are Scieropepla typhicola including the one used on Don's site. S. typhicola has dark base to palps too. https://inaturalist.ala.org.au/observations/258350512 Above moth MAY be S. typhicola or something else, but I don't think it is S. reversella. Perhaps Scieropepla (genus) is the best we can do.
To complicate matters this side-on set specimen of S. reversella seems to have a dark base, but I'm not sure other examples on BOLD Hobern show this feature. https://bold-au.hobern.net/specimen.php?processid=NSWHM1869-11 I'v always thought we need a Scieropepla (genus) category for doubtful