Flies are the insects that are dipteral ( Having two wings) and belong to same order.
There are more than 1.20 million species of flies in the world. They keep on changing in size as they grow towards maturity. House fly is scientifically called as Musca Domestica. Houseflies are considered to be one such pest that does not bite but transmits several diseases. like cholera, dysentery, typhoid and diarrhea. Besides, they can also cause serious eye infections.