These cockroaches are most commonly introduced into buildings via paper products or paper packaging such as grocery bags, cardboard boxes, drink cartons, and via secondhand appliances such as refrigerators, televisions, VCR's, microwaves, etc. They have been observed to migrate from building to building on warm evenings, but this rarely occurs. Although uncommon, they can survive outdoors during the warm months. They feed on almost anything with nutritive value including all kinds of food, and such things as soap, glue, and toothpaste. Activity periods vary with life stage, age, and physiological state.
Males spend most of their time in harborage, even at night.
All nymphs become immobile and stay in harborage during the last three days of each instar while the prepare to molt.