Geotrupes stercorarius is very similar to Trypocopris vernalis, but the latter has a slightly wider body and smoother elytra; Geotrupes stercorarius has deeper longitudinal grooves on the elytra.

1st & 2nd photo: Ermelose Heide, Ermelo, The Netherlands, 26 July 2016
3rd & 4th photo: Veluwezoom National Park, Rheden, The Netherlands, 10 October 2018