Found in the morning inside my light trap. Supposedly Lithophane hemina is not found in SK according to "Annotated Checklist of the Moths and Butterflies (Lepidoptera) of Canada and Alaska, Pohl, 2018" so my guess is probably wrong?
ID based on photos found at: https://mothphotographersgroup.msstate.edu/species.php?hodges=9893 & here on iNat (https://inaturalist.ca/taxa/223985-Lithophane-hemina)