How to distinguish male and female cockroaches: Male cockroach is relatively thinner but longer, with a ventral spine and fully developed wings reaching the rear; Female has shorter wings and no ventral spine.
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- 蟑螂雌雄的区分:雄虫体形比较瘦小,细长,翅发达至尾端,具有腹刺;雌虫翅较短,无腹刺。