Fruit flies are small (1/8 inch long), black, and have red eyes. They are often found near fruit or other sources of food. They are most easily identified by their small size and their red eyes.
The best way to get rid of fruit flies is to eliminate their food sources by thoroughly cleaning your kitchen and bathroom. You can also use commercial fly traps or bait. If you have a severe infestation, you may need to call a professional exterminator.