Which of the following is true about Anopheles punctipennis?

• A. Eggs laid singly on water surface
• B. Overwinters as fertilized adults
• C. Larvae inhabit rapid-moving streams only
• D. Adults are active exclusively during daylight

Answer: (A)

Understanding how Anopheles punctipennis lays eggs and where its larvae develop helps you identify and control this species. The true statement is that eggs are laid singly on the water surface; each egg is placed individually on still water rather than in a floating raft. This trait is characteristic of Anopheles and helps distinguish them from other genera that lay eggs in clusters or rafts. The other options don’t fit this species: overwintering as fertilized adults isn’t typical for temperate Anopheles, their larvae prefer quiet, still water with vegetation rather than rapid-moving streams, and adults are not active exclusively during daylight but are usually active at night or around twilight.