孑孓蝇

例句：

1. 1. The mosquito larvae are a major source of vector-borne diseases.
   蚊子幼虫是主要的传播媒介疾病来源。
2. 2. The researchers found that the larval stage of the mosquito is vulnerable to insecticides.
   研究人员发现蚊子的幼虫阶段对杀虫剂很敏感。
3. 3. The scientists are studying the effects of temperature on the survival of mosquito larvae.
   科学家们正在研究温度对蚊子幼虫存活的影响。