Mosquitoes belonging to insects, the body into three parts of head, thorax, and abdomen, three pairs of legs, only a pair of wings hind wings degenerated into small balance bar. Summer night, if mosquito bites, it will be red and itchy. In fact and not all mosquitoes are such a nuisance, mosquitoes have male, female mosquito with different feeding habits, only female mosquitoes suck blood, and the male mosquito "vegetarian".

　　Rely on the mouthparts insect feeding. Different insects have different mouthparts, the mosquito's mouthparts is sucking, like the needle of the syringe is same, can penetrate into objects to suck the nutrients they need. The male mosquito mouthparts is not sharp enough, can not penetrate the skin, can only rely on nectar or dew in life. Female mosquitoes mouthparts sharp, like a needle like, actually by six than a human hair is also fine acicular structure, two of them is esophageal tube and salivary duct, and another two barbed blood needle and two pieces of a serrated knife. The six acicular structure outside by a thin layer of sheath wrapped with sheath on the tip and a "clamp", the six needle into a bundle, this is mosquito bite "weapons." The female mosquito occasionally try plant sap. However, once the marriage must blood in order to meet the development of ovary nutrition, animal blood contains concentrated sugar, fat and protein can promote the female mosquito of ovarian development and maturation of oocyte, the increased fecundity.

　　The female mosquito's saliva contains an anticoagulant, to prevent blood coagulation, in front of the vampire, will contain first anticoagulant saliva injected and blood mixed, make blood becomes thin plasma, and spit out overnight undigested Chen blood sucking fresh blood. The human body has a response to this kind of foreign material, namely, the immune system releases a substance called histamine, which can cause blood vessels to dilate, causing skin irritation, it also causes the skin to stimulate the nerve endings, causing itching. After mosquito bites, the remnants of saliva left in the skin, will spread a variety of diseases, which is the main damage to mosquitoes. According to the research, mosquito borne diseases can reach more than 80 kinds, such as mosquito borne filariasis, mosquito transmission of hepatitis B virus encephalitis, Anopheles mosquitoes, such as malaria,, serious harm to human health.

　　The mosquito's life passes through the egg, the larva (Jie Jue), the pupa, the adult four periods. In a suitable environment in summer, the female mosquito eggs in the water, one or two days after the larvae hatch into larvae --. After the four molting larvae after pupa, pupa continues to live in the water for two or three days, can become the emergence of mosquitoes. Generally speaking, the male mosquito has a short life, only 6 to 7 days, and then completed the historical mission, and the longevity of female mosquitoes can reach 30 days. Female mosquitoes can produce a single egg with blood, which can lay eggs six to eight times, and each time 200 ~ 300.

　　Mosquitoes for some special odor preference, specifically looking for conforming to the "taste" of the object -- high body temperature, love to perspire, because people in this part of the sweat contains a large number of amino acid, lactic acid and ammonia compounds, easy to bite; some special smell like babies unique taste of milk, to recruit mosquito attacks.

　　Some scientific research units are also dedicated to the breeding of mosquitoes, what is the purpose? The main purpose of the research is to carry out the research on the insect resistance of mosquito populations, to explore why the mosquito is hard to kill, and what genes have mutated, which has been developed to provide the basis for developing new insecticides in the future.