Question

Periplaneta americana differs from

• A. Blatta orientalis in having
• B. No wingsDeveloped wings
• C. Only first pair of wings
• D. Only second pair of wings

Answer 1

The correct option is B No wingsDeveloped wings

There are forty-seven species in the genus Periplaneta, but the most famous is the American cockroach, Periplaneta americana.Adult American cockroaches have wings that extend approximately the length of their body or longer. Male American cockroaches have slightly longer wings than females. A male American cockroach's wings may extend 4 to 8 mm beyond the length of their body.

On the contrary, in the Blatta orientalis or the oriental cockroach,Male oriental cockroaches have wings that only extend about ¾ the length of their bodies. Female oriental cockroaches have wings that are even shorter - rudimentary wings that are only short nubs.

So, the correct answer is 'Developed wings'.