native to w. Palaearctic, adventive in the New World(1); in our area, across so. Canada south to VA-IN-OR(1)
Habitat
granaries/elevators, flour mills, houses, museums, haystacks, and barns in association with stored grains, dried dung, bird nests, refuse, fungi, and mouldy paper(1)
Remarks
earliest NA record: before 1899 (MA-VA, IN, OR)(1)