A) Forewings with darker tegmina
B) Presence of caudal styles
C) Presence of a boat shaped sternum on the 9th abdominal segment
D) Presence of anal cerci
Correct Answer: B
Solution :
[b] Males bear a pair of short, thread like anal styles which are absent in females. |
Anal/caudal styles arise from 9th abdominal segment in male cockroach. |
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