Which mosquito stage is responsible for feeding on blood?

The adult female mosquito is the stage responsible for feeding on blood. This is primarily because female mosquitoes require the proteins and iron found in blood to develop their eggs. The ingestion of blood provides the necessary nutrients that support reproduction, making it a critical behavior for female mosquitoes. In contrast, male mosquitoes primarily feed on nectar and do not consume blood at all.

Larval and pupal stages are aquatic and mainly feed on organic matter in the water without needing blood. Therefore, the adult female's specific role in blood-feeding is integral to the life cycle of mosquitoes and their reproductive strategies.