Which of the following features is used to identify a male cockroach from a female cockroach?
Which of the following features is used to identify a male cockroach from a female cockroach?
Option 1 : Presence of a boat shaped sternum on the 9th abdominal segment.
Option 2 : Forewings with darker tegmina
Option 3 : Presence of caudal styles
Option 4 : Presence of anal cerci