Why mosquitoes fly in cloudy swarms in summer

Hi! Let’s learn about those cloudy groups of mosquitoes you see in summer. I will explain it step by step so it’s easy to understand.

1. What is a "swarm"?

A swarm is a large bunch of insects flying together. When lots of mosquitoes fly close to each other, they look like a little cloudy puff in the air.

2. Why do they do this in summer?

• Warm weather helps mosquitoes grow and be active. Summer is warm, so more of them are around.
• There is more standing water (like puddles, ponds, bird baths) in summer. Mosquito babies (larvae) grow in water, so more water = more mosquitoes.
• Many mosquitoes use swarms to find mates (male and female mosquitoes meet in the swarm).

3. Why does the swarm look cloudy?

Because there are lots of tiny mosquitoes flying together. From a little far away they make a fuzzy, cloud-like shape moving in the air.

4. When do they make swarms?

• Often at dawn (early morning) or dusk (right after sunset) when it is cooler and not too windy.
• Some places and species also swarm at other times, but those times are the most common.

5. What attracts mosquitoes?

• Warmth from people and animals
• Carbon dioxide we breathe out
• Body smell, sweat, and bright lights at night

6. How can you stay safe?

• Ask an adult to remove standing water around your home (empty buckets, flowerpot trays, and lids).
• Wear long sleeves and pants in the evening when mosquitoes are active.
• Use window screens and mosquito nets while sleeping.
• Use insect repellent made for kids if an adult helps apply it.

7. What to do if you get bitten

• Wash the bite with soap and water.
• Ask an adult to put on a little anti-itch cream or a cool cloth to help the itch.
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• Try not to scratch — scratching can make the bite sore or get infected.

That's it! Mosquito swarms are mostly about warmth, water, and mosquitoes meeting each other. If you follow the safety tips, you can avoid most bites and enjoy summer more.