The brown cockroach (Periplaneta brunnea) is a species of cockroach in the family Blattidae. It is probably originally native to Africa, but today it has a circumtropical distribution, having been widely introduced. In cooler climates it can only survive indoors, and it is considered a household pest.
This cockroach is similar in appearance to the American cockroach (P. americana), but darker in color and with thicker, wider, triangular cerci. It is a reddish brown color and has fully developed wings. It reaches up to 4 centimeters in length.
- Black and white photographs of top view of P. brunnea male and female specimens, from Smithsonian Miscellaneous Collections.
- Drawings of body parts of male P. brunnea; plate VII, figures 12-16 show detail of the pronotum, end of abdomen with cerci, genital process, subgenital plate, and supra-anal plate with cerci. From a 1917 article by Morgan Hebard, with a key to the figures on page 280.
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