生物学

• 受精囊

  There is a spermatheca to store sperm in female cricket, the sperm can live 3-4 months in it. So there are some insects that only breeding several times and the storing sperm in the spermatheca is enough for it’s reproductivity.

  蟋蟀雌性个体内存在可以储存精子的受精囊，精子在受精囊内可以存活3-4个月，所以有些昆虫一生只需交配几次，其体内储存的精子就够一生的需要了。

农业科学

• 纳精囊

  Short time after the Spermatophores entered the spermatheca, it dissoluted and existed as single sperm until combining with germ cell.

  精荚进入到雌体纳精囊后，很快便破裂，释放出游离精子，以该形式存在直至与雌性卵结合，接着雌蟹抱卵。

• 受精囊

  The tip of spermatheca is fuscous in P. nanwutaina.

  南五台蝎蛉P. nanwutaina受精囊尖端颜色极深,明显。

物理学

• 纳精囊

• 受精囊