native to the Old World (origin unknown; non-native in Europe), now nearly cosmopolitan in warm regions(2)(3); widespread in NA north to BC‒NS(4)
Habitat
outdoors, on carrion and animal skins; common in granaries, warehouses, shops, and dwellings on stored products, incl. fishmeal, smoked meat, bone and bone meal, feathers, and skins(1)(5)