Explanation

[table] Male Cockroach | Female Cockroach ; Body is relatively smaller and more flattened. Abdomen has 9 distinct segments. Hind end of abdomen is somewhat pointed. Seventh sternite is undivided. A pair of anal styles are articulated with 9^(th) abdominal sternite. Wings are relatively larger; extend somewhat beyond hind end of body. | Body is relatively larger and thicker. Abdomen has only 7 distinct segments. Hind end of abdomen is blunt and boat-shaped. Seventh sternite is divided. Anal styles are absent. Wings are smaller; extend only up to hind end of body. [/table]