The Asian cockroach (Blattella asahinai), is a cockroach. It is nearly ientical to the German cockroach except for a few very minor differences, and the fact that it can fly quite well. It is about 5/8" (1.6cm) long and is tan to brown in colour, and has wings. It has longer wings than the German cockroach, and there is a difference between a groove in the abdomen between the two species.