Blattella asahinai, the Asian cockroach, is a species of cockroach that was first described in 1981 from insects collected on Okinawa Island, Japan. It is a small species of cockroach, typically 1.3 to 1.6 centimetres (1⁄2 to 5⁄8 in) long and tan to dark brown in colour with dark parallel stripes on the back of their heads. It is commonly mistaken for the German cockroach (B. germanica) due to their similar appearance. It is now commonly found in the United States in and around houses.

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