Physical Characteristics

The most common fly is the house fly; it makes up 90 percent of all flies that hang around humans. The house fly is gray and about 1/4 inch long, with longitudinal dark stripes on the top of the thorax. The sex of a house fly can be determined by the distance between their eyes (females have a wider distance). Also, the female is usually larger than the male.

House Fly

House Fly


House flies have been known to migrate up to 20 miles, although typically they will stay within a quarter mile of their release point or larval habitat. These flies are attracted to buildings or homes via air current-borne odors, and they like temperatures around 83 degrees Fahrenheit. On cooler days, flies are usually found around doors and windows of dwellings. During the day, house flies will fly or rest less than five feet above ground, whereas at night, they tend to fly and rest above five feet. Flies have been known to harbor over 100 different diseases, ranging from typhoid fever to salmonella.


Fly infestations almost always indicate some kind of sanitation problem. Your Clark technician can point out what’s causing the flies to infest your property, and can advise you on how you can take care of it.

Latin name: Musca domestica