The Oriental cockroach is now a common pest in Alameda County. Over the last several decades it has moved into several new neighborhoods. When young, these cockroaches have a reddish-brown color. As they mature, they grow to 1 ½ – 2 inches and darken to a blackish color with an oily sheen to the body. The male has wings covering most of its body and the female only possesses small wing pads.
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