In hemicephalous larvae, the head and its appendages are reduced and partially retracted into the thorax.
半型无足部部分退化,后端缩入胸部,如双翅目的大蚊及一些寄膜翅目。
In hemicephalous larvae, the head and its appendages are reduced and partially retracted into the thorax.
半型无足部部分退化,后端缩入胸部,如双翅目的大蚊及一些寄膜翅目。
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