The males are attracted to lights and will often make short, erratic flights in the early evening hours. Although occasionally found inside, woods roaches do not reproduce or multiply inside. Females usually deposit their egg capsule under loose bark. One generation per year is typical, and adults live several months. Smoky Brown Cockroach.
Adults have well-developed wings that stretch to the tip of the abdomen.
The smoky brown is a tropical roach, thus more common in the southern United States. They feed on plant material and may inhabit greenhouses. They enter houses in the summer or hitchhike on firewood. But these species occasionally are shipped to Delaware on fruit or nursery stock. Australian roaches are also found around palm trees as well as under tree bark, under log piles, and in areas with moist, decaying vegetation.