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蛇小档案:分类:属双翅目、短角亚目虻科。种数:现在全世界估计已近4000种,我国已知约有300种。生活史:卵—幼虫—蛹—成虫。习性:雄虻以植物汁液为食,雌虻吸血,通常吸食大型家畜的血,有时也侵袭其他动物和人。成虻活动可分为上、中、下午和黄昏、黎明等。多数种类在交配后经吸血才能产卵,少数种类不经吸血可产卵。虻的孳生地大体上可分为水生、半水生和陆生,虻多产卵于植物的茎、叶上。虻的幼虫多为肉食性的,捕食昆虫幼虫、甲壳类和蚯蚓等,也可叮咬人。有些以腐殖质为食。成虫栖息于草丛树林中,多见于河边植被上。虻的飞翔能力很强,每小时可飞行45km～60km。
Snake file: Category: Diptera, short-horn subfamily Division. Kind of number: It is estimated that there are nearly 4,000 kinds in the world now, about 300 kinds are known in our country. Life history: eggs - larvae - pupae - adults. Habits: Male suckling plants juice for food, sucking vomit, usually sucking the blood of large livestock, and sometimes other animals and humans. Cheng 虻 activities can be divided into upper, middle, afternoon and evening, dawn and so on. Most species can be spawned by vampire after mating, and few species can spawn without vampire.虻 breeding ground can be divided into aquatic, semi-aquatic and terrestrial, 虻 more eggs in the plant’s stems and leaves. Larvae larvae mostly carnivorous, predation on insect larvae, crustaceans and earthworms, but also can bite people. Some feed on humus. Adults perched in grass woods, more common in riverside vegetation.虻 flight ability is very strong, can fly 45km ~ 60km per hour.