Epilobocera sinuatifrons is one of the most abundant predatory freshwater decapods in the freshwater streams of Puerto Rico.Mayfly Predation by Juvenile Freshwater Crabs: Implications for Crab Habitat Selection. J. K. Henry, A. P. Covich, T. S. Bowden, and T. A. Crow. Society for Freshwater Science. NABStracts 2000 #446. Retrieved 24 September 2013. The juveniles are aquatic while the adults feed also on terrestrial resources on the forest floor adjacent to streams.
