ent: they placed a cotton dipped in sugar water and a cotton dipped in fresh blood in front of the male mosquitoes. After experiments, it was confirmed that the sugar water The attraction of blood to male mosquitoes is basically the same, so the question is, if male mosquitoes are fed blood, can they also adapt perfectly?
2 A's honey, B's arsenic, blood is the life-threatening charm of male mosquitoes
It has been speculated before that male mosquitoes do not suck blood because of congenital defects, just like a thief who has confiscated his tools to commit a crime and cannot commit a crime, then if a male mosquito can suck fresh blood without restriction, it will also become like a female mosquito. Are you fascinated by blood? In fact, for male mosquitoes, blood is a nutritional supplement for female mosquitoes, but for itself, it is a poison that penetrates the intestines!
For comparison, male mosquitoes can live for more than a month when they only feed on 10% sucrose solution; when they feed only on pure water, their survival time is about 5 days; and when mosquitoes feed on a mixture of blood and sucrose solution , with an average survival period of 7 days. With the increase of blood concentration, the survival period of mosquitoes will be shortened. For example, when male mosquitoes are fed with a mixed solution of blood concentration of 40% and sucrose concentration of 10%, their survival period is as short as only three days, which is shorter than drinking boiled water. Not as good.
Although blood is not as fast as arsenic for male mosquitoes, the experimental results do show that blood is toxic to male mosquitoes. This is also expected. After all, the red blood cells in the blood will release toxic heme after they are decomposed. Is there a possibility that this is the reason for the sudden death of the male mosquito? If that's the case, then the question arises again, why don't female mosquitoes die by drinking blood?
3 Why can female mosquitoes drink blood at will
Female mosquitoes must have evolved some special mechanism to drink blood but avoid being poisoned by blood. Mosquitoes and many small insects have a protective film called the peritrophic membrane on the inner wall of their intestines, and some blood-sucking mosquitoes have a peritrophic membrane that is different from other insects. Relevant studies believe that the periphagic membrane of female mosquitoes can Blocks heme and iron, and resolves the toxicity generated by the decomposition of heme, which is manifested in the aggregation of heme into heme crystals in a special way.
Although there is no blood-sucking equipment and no tools to digest blood, male mosquitoes still show interest in blood, which is surprising. Fortunately, the creator did not give the worker mosquitoes too long mouthparts, otherwise the mosquitoes might leave Extinction is not far away.
4 Tips to control mosquitoes
(1) As long as the mosquito is stabbed in the correct position, the mosquito will not feel full, it will start the crazy eating and broadcasting mode, drink blood equivalent to four times its own body weight, and then when the stomach can't hold it It will explode when it happens, and this special part is the ventral nerve cord of mosquitoes.
(2) When the mosquito is biting you, don't shoot it directly with your hands, try to make the muscles in the bitten place tight, and the mosquito's mouthparts will be caught by the muscles and cannot be pulled out, so that the mosquito will eventually end up. It can also self-destruct due to drinking too much blood.
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