Posted by mwkozlowski on 05-08-2023 11:05
#2
Just tearned fom a comprehensive pdf book
https://www.researchgate.net/publication/369998930_Cow_patty_critters_An_introduction_to_the_ecology_biology_and_identification_of_insects_in_cattle_dung_on_Canadian_pastures
that this should be Copromyza sp. from Sphaeroceridae