The southern grasshopper mouse is a robust, small, nocturnal species. The northern grasshopper mouse is found in North America, but primarily in dry areas. The grasshopper mouse is a reddish-black/grey color with white hair on the belly. Throughout the night, the grasshopper mouse makes high-pitched noises to claim its territory. The southern grasshopper mouse feeds almost entirely on arthropods, such as beetles, grasshoppers and scorpions.