1, mosquito introduction
A: Mosquitoes belong to Insecta Diptera, and there are about 3,000 species in the world. It is a tiny flying insect with a piercing and sucking mouthparts. Usually females suck blood, while males suck the juice of plants. Blood-sucking female mosquitoes are intermediate hosts of pathogens such as dengue fever, malaria, yellow fever, filariasis and Japanese encephalitis. Mosquitoes are distributed on all continents except Antarctica. The most famous ones are Anopheles, Aedes and Culex.