This powerfully built crayfish is usually a uniform olive or tan, without obvious blotches or spots. Occasional individuals are blue, with yellowish stripes on the abdomen and bright red outlining many body parts. Another burrowing species, the prairie crayfish (Procambarus gracilis), superficially resembles the devil crayfish. However, adults of the prairie crayfish are often bright red. In males the tips of the reproductive structures (gonopods) are strongly curved in the devil crayfish, nearly straight in the prairie crayfish.