Luna is fennec fox, a species found in the Sahara and Northern Africa.
Jody Lee tells the Journal News that 3-pound, 9-month-old Luna slipped out of her harness and darted off on Monday. The Lees have put up fliers around their White Plains neighborhood seeking information about Luna's whereabouts.
Fennec foxes are the world's smallest fox species. They have sandy-colored coats and very big ears.
Lee's 15-year-old daughter cared for one at a summer camp for youngsters interested in becoming veterinarians. The family then got Luna from a California breeder.
Lee says her daughter is heartbroken over Luna's disappearance.