On iNaturalist, Tyler said: "Dusted off my Euparius key to verify and I'm still pretty sure it's E. marmoreus. The mesotibiae have a single broad band of white setae that is medially interrupted by a brownish spot, but it doesn't go all the way around--- E. paganus would have this white band completely bisected by a dark band, cutting it into two separate narrow white bands. The form of the hind angles of the pronotum are also consistent with marmoreus over paganus-- bear with me here as this is somewhat difficult to describe, but the hind angle of E. marmoreus kinda curves outward into a squared-off projection; E. paganus just has a normal rounded right angle here, with no projection (taxon photos show this difference pretty well)."