Scientific Name: Parcoblatta pennsylvanica (DeGeer)
Color: yellowish-chestnut brown; The thorax and
tegmina are edged in pale coloration.
Size: 22-30 mm(males), 12-20 mm(females)
This native species is found through many southern states as well
as northeastern states and Canada. It is apparently a native species.
Pennsylvania Wood Cockroaches range in size from 1/2-1-1/8 inch
long. They are chestnut brown with a white edge around the forewing.
Males are fully winged and can fly. The female's wings are reduced,
covering about two-thirds of her abdomen, rendering her functionless
This is one of the few cockroach species that can occasionally invade
a home but rarely breeds or survives indoors. They can enter a structure
on firewood or enter at night through small openings because they
are attracted to light.
The Pennsylvania wood roach is normally an outdoor pest but can
sometimes be found in homes and cottages. Its diet consists mainly
if organic matter, sweet or fermenting substances and fungi. It
hides beneath loose bark, ground litter, in wood piles, stumps and
hollow trees. The males of the wood cockroach are strong flyers
and are often attracted to lights at night.
The Pennsylvania wood cockroach has not been associated with any
Control is seldom recommended because this roach rarely survives
indoors. Using a "bug bulb" in porch lights and sealing
and caulking around exterior doors and windows has been found to
be beneficial in keeping these roaches to a minimum inside structures.
(Source: National Pest Management Association, et. al.)