The secret of mosquito squeak is revealed. Free Technical Library News

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Revealed the secret of mosquito squeak

18.07.2020

Researchers from Johns Hopkins University (USA) found that mosquitoes flap their wings not only to stay in the air, but also to achieve two other important purposes: to generate sound and to direct it to find a potential partner. Findings from a study on the aerodynamics of mosquito wings could help create quiet drones, as well as non-toxic pest control methods using sound.

Mosquitoes need wings to fly, generate sound, and attract a mate, and mosquitoes are very effective at this - which is why there are so many malaria and other mosquito-borne diseases around. In addition, long and thin wings are ideal for generating sound - mosquitoes flap them at much higher frequencies than, say, fruit flies. There is a reason for this. Higher frequencies reproduce sounds better.

Males buzz with a higher frequency sound, while females, on the contrary, make low-frequency sounds. In order to attract a female, the mosquito must flap its long, thin wings at high frequencies, as well as rapidly rotate them at the end of each beat.

That annoying, high-pitched squeak we hear just before a female mosquito bites us is also a fluttering serenade addressed to the male mosquito's heart.

Understanding the ways and strategies used by mosquitoes to control the sound they generate could ultimately lead to the development of quiet drones. This information will also help determine how to use sound to interrupt the mating ritual and how to create non-toxic methods to suppress the breeding process and reduce the mosquito population.

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