Which of the following mosquitoes emerge from lakes in large numbers and do not feed on blood?

Blind mosquitoes, belonging to the family Corethrellidae, are noted for their unique behavior in that they emerge in large numbers from aquatic environments such as lakes. Unlike many other mosquito species, blind mosquitoes do not require a blood meal for reproduction. Instead, they primarily feed on nectar and other sugar sources, which allows them to thrive in environments with ample plant life and floral resources.

The characteristics of blind mosquitoes set them apart from other genus mentioned. Culex mosquitoes, for example, are known to be more adaptable to urban environments, typically feeding on blood, particularly from birds or mammals, which is essential for their reproduction. Aedes mosquitoes are well-known for their aggressive biting behavior and are notorious vectors for diseases like Zika and dengue, relying on blood meals for their lifecycle. Anopheles mosquitoes are recognized primarily for their role in malaria transmission and also require blood for egg development.

In contrast, the primary feeding habits and life cycle of blind mosquitoes emphasize their ecological niche, showcasing their role in the environment without the need for blood feeding which differentiates them from the other mosquito types listed.