In hemicephalous larvae, the head and its appendages are reduced and partially retracted into the thorax.
半头型无足幼虫头部部分
，
端缩入胸部，如双翅
的大蚊及一些寄
性膜翅幼虫。
In hemicephalous larvae, the head and its appendages are reduced and partially retracted into the thorax.
半头型无足幼虫头部部分，端缩入胸部，如双翅的大蚊及一些寄性膜翅幼虫。
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