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
This specimen clearly shows the darker lower section pf the labial palps. Is this a feature of S. typhicola? This image from the ALA suggests it may be but I'm not sure its definitive. https://bie.ala.org.au/species/https://biodiversity.org.au/afd/taxa/cfb97b8c-58fb-4961-92e3-27ab43c47057#gallery For severalthe formerly identified records of S. reversella to be re-classofied as S. typhicola than I believe the darker section of the palps should be acceptable for S, typhicola but I'm finding it difficult to see this feature on the BOLD set specimens of S. typhicola.
Several of these Scieropepla (genus) photographed by Con Boekel (including this one) seem to me to have a darker lower section to thr labial palps (these have dentified as S. reversella previously). However when I look for that feature for S. typhicola elsewhere (for example the third sample image for S. typhicola here on NatureMapr) that lower section of the labial palps is not dark but whitish like the rest of the labial palps.
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.