Reason:

Flower-footed mosquitoes have a stronger formic acid than normal mosquitoes, and people react to formic acid by itching. At the same time, the flower-footed mosquito will also release saliva containing anticoagulant to prevent the blood from freezing, so that it may calmly feast -番. When the flower foot mosquito eat and drink, floating bye-bye, stay is an itchy swollen bag.

People let mosquitoes bite will feel itchy, because the body's immune system in the body will be released at this time, known as a structural amine protein, used to oppose the foreign material, and this immune response inspired the bite site of the allergic reaction. When the blood flow to the bite to speed up the tissue recovery, histamine will become the bite of the boundary of the tissue swelling, some people to mosquito bite allergic reaction is relatively tight.

Expanded:

< p>The scientific name of the flower-footed mosquito is Aedes aegypti, and it comes out to bite people during the day. But it will hardly be noticed during the day. It is more toxic. There is also a kind in Africa called Aedes aegypti mosquito, which can also spread yellow fever and Rift Valley fever.

The flower-footed mosquito has a strong sense of smell. When humans exhale carbon dioxide and other odors, these odors will spread in the air, and these odors are like the bell of the meal, telling the mosquito that a good meal is just around the corner. Then it falls to the skin patiently looking for "breakthroughs", and finally the "syringe" directly into the skin to suck blood for 8-10 seconds.

Flower-footed mosquito adult inhabits in bamboo forests, woods, bushes and tanks, cans, tiles, the inner wall of the altar, etc., addicted to sucking human blood, rabbit blood, rat blood, daytime activities, biting. Flower-footed mosquitoes are important vectors of epidemic encephalitis B, but also an important vector mosquito species of dengue fever.

Baidu Encyclopedia - Flower-footed Mosquito