Washington Aquatic Pesticide Practice Exam

Which mosquito groups overwinter as eggs or larvae?

Anopheles and Culex Aedes and Coquillettidia Coquillettidia and Anopheles Culiseta and Aedes

Correct Answer:

Aedes and Coquillettidia

Explanation:

Overwintering strategies in mosquitoes differ by genus, with some groups persisting through winter in eggs or larvae. Aedes produces eggs that are highly resistant to drying and cold; these eggs lay dormant through winter and hatch when spring rains return. Coquillettidia has larvae that can endure winter conditions in aquatic habitats, especially where plants provide shelter, and they resume development when it warms. Because these two groups regularly survive winter in egg or larval stages, they’re the best fit for the question. Other genera in the list typically survive winter as adults in sheltered places, so they don’t fit the “eggs or larvae” overwintering criterion.

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