About 110000 fly species are there around the globe. Their population depends upon available harborage area, temperature, humidity etc. flies are more active during day time & rest at night on ceiling fan, wires, walls, windows etc. favorable environment for flies are temperature range 25-35 oC with low humidity in air. They can’t survive above 45 oC or below 10 oC.

Interesting facts:

• Their infestation is more in days due to having fast reproductive cycle, may be completed in a week. House fly may lay 500 eggs every four days repeat in life span of mostly 20-25 days but sometimes two months.
• They don’t have chewing mouth parts due to that their saliva has some enzymes may convert solid food into sponge like liquid which absorbed by them.
• Their taste sensors are below feet of them.
• Important part of environment by enhancing decomposing process and adding nutrients to soil for crops and plants.
• They may helpful in forensic investigation at crime scene.
• Some species may have important role in pollination cycle.