In hemicephalous larvae, the head and its appendages are reduced and partially retracted into the thorax.
半

足幼虫
部部
退化,后端缩入胸部,如双翅目的大蚊及一些寄生
膜翅目幼虫。
的In hemicephalous larvae, the head and its appendages are reduced and partially retracted into the thorax.
半

足幼虫
部部
退化,后端缩入胸部,如双翅目的大蚊及一些寄生
膜翅目幼虫。
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