Which insect is known for transmitting disease and may breed in standing water?

Mosquitoes are well-known for their role as vectors in the transmission of disease and are notorious for breeding in standing water. The life cycle of mosquitoes requires stagnant or slow-moving water for their eggs to develop into larvae. This habitat allows them to thrive and increases their population, which heightens the risk of spreading illnesses such as West Nile virus, Zika virus, and malaria. In contrast, flies, ants, and bed bugs do not have the same breeding conditions associated with standing water or are not primarily recognized for their role in transmitting diseases in the same way mosquitoes are. While some flies can carry diseases, they do not depend on standing water for breeding as mosquitoes do. Ants and bed bugs have entirely different reproductive habits and are not directly linked to the transmission of diseases like mosquitoes. Thus, mosquitoes stand out distinctly as the insects that breed in standing water and are significant disease carriers.