Question

How does a male cockroach differ from a female cockroach?

Answer 1

Cockroach is a unisexual organism. This indicates that both male and female sex are seperate in them. And mode of reproduction is Sexual.

There are numerous aspects that helps you to identify whether the cockroach is male or female.

The main points of difference among Male and females cockroach are as follows :

MALE COCKROACH

» They bear titilator.

» Male genital pore is located on ventral Phellomeres.

» Anal style is found in them which marks the main distinction between the 2 genders.

» Males are usually of smaller size than female.

» Wings are larger in size.

» Last segment of abdomen is pointed.

FEMALE COCKROACH

» Brood pouch is present

» Larger in size than male cockroaches.

» Wings are of smaller size.

» Broader abdomen than male cockroach.

» Anal style is not present.

» Larger antenna than male.

Answer 2

Answer:

Some differences between male cockroach and female cocroach are as follows:

Male cockroach:

1. The abdomen is comparatively long and narrow.
2. The hindwings go beyond the tip of the abdomen.
3. The 8th abdominal tegrum is covered by the 7th tegram, so ventrally nine sterna are visible.
4. There is no blood pouch, or gynatrium, in the sternum.
5. The 9th sternum has a pair of slender unjointed anal styles.

Female cockroaches:

1. The abdomen is shorter and wider.
2. The hindwings reach up to the tip of the abdomen.
3. The 8th and 9th abdominal terga are hidden by the 7th tegram. So, ventrally only the first seven sterna are visible.
4. The 7th, 8th and 9th abdominal segments invaginate to form a brood pouch, or gynatrium, which serves as a mound for the ootheca.
5. Anal styles are absent.