Flat, oval, brown or gray creatures up to 1/2 inch long are found in the home, especially in damp areas. They have a segmented shell and seven pairs of legs. They may roll up into a ball when disturbed.
Prevent more from entering by sealing foundation cracks and putting weatherstripping under doors. Eliminate moist, dark breeding sites such as nearby boards, and storage boxes. If the bugs persist in the house, check for leaks or dampness and fix the problem.