The rhinoceros beetle is completely red brown (not always visible in the dark) and does not have yellow rings or spots on the legs. Males only have one big pointy projection on their head, just like a rhino. Females only have a really small projection. Rhinoceros beetles have broad, compact legs while stage beetles have slender and long legs. Also, the antennae of both species are different. The European stag beetle has comb-shaped antennae, the rhinoceros beetle fan-shaped (often folded up as a club).