Endangered Delhi Sands Flower-loving Fly Management
RLC is involved in the planning, acquisition and management of lands designed to enhance the viability of the Delhi Sands flower-loving fly (Rhaphiomidas terminates abdominalis). Listed as endangered by the U.S. Fish and Wildlife Service in 1993, this subspecies is endemic to sand dune formations of San Bernardino Valley, from Colton to Ontario.
The sand dunes, which originally covered about 40 square miles, have dwindled to 2 percent of their original area. RLC holds title or conservation easement on seven properties totaling about 100 acres, which are preserved and managed as habitat for the Delhi Sands flower-loving fly.