The fly always lives near human settlements because it lays its eggs on decaying organic foods, especially fruit and vegetables, and on excrements, which it detects thanks to its powerful sense of smell. adult stage, occurs in less than 10 days and this allows the fly to reproduce very quickly and give life to 10-12 generations in a single summer. At the beginning of spring the insect leaves the winter shelters and begins to reproduce; the female lays in the course of her life, which on average lasts 15-20 days, about 500 eggs. It is a diurnal insect particularly active in the hottest and driest hours of the day, between 2pm and 4pm. It is unable to chew but needs liquid or dissolved food that it can suck with its trunk. It is an excellent flyer that moves around a speed of 24 km / h and flaps its wings up to 1,000 times per minute, producing a typical hum.