For more images of this species, see: BG.
S. diceros is a fairly distinctive member of this genus, but the fairly uncommon S. albescens is the most similar species. In albescens, the pronotum is scantily hairy and has one definite tan band near the apex; in diceros, the pronotum is very pubescent and has 2 well defined dark brown bands with a pale, tan area in between. (Kopp & Yonke, 1973)