Mosquitoes, unimpressed by the rain, however grounded by the fog

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JACKSONVILLE, Fla. – Don’t expect rainy days to stop the mosquito bite, but you may find more relief on foggy days.

It turns out that mosquitoes have a remarkable ability to fly not only in clear skies, but also in the rain.

Scientists have shown that flying pests can skilfully fly through raindrops that are more than 50 times their body mass, but fog is a major challenge.

According to researchers at the Georgia Institute of Technology, mosquitoes are grounded when the fog thickens. Fog particles continuously surround the mosquito as it flies through an inevitable cloud of fog.

Mosquitoes’ interaction with heavier raindrops appears to be more challenging compared to fog, but collisions with raindrops in a storm occur every 20 seconds on average.

Using high-speed videography, the researchers were able to observe how thick fog undermines the mosquito’s primary flight control mechanism.

Small, buttoned structures, called holsters, located on the mosquito’s back wings, serve as flight sensors. They lead to flight failure when tiny fog particles surround the insect.

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