What is a House Fly?

The house fly is the most common fly found in and around homes. It has a worldwide distribution and is prominent in the United States. House flies are not only nuisance pests while buzzing around homes, but they are potential disease carriers. House flies have short lifespans, but they can quickly reproduce in large numbers, leading to large house fly populations if not identified and effectively controlled.

What Do House Flies Look Like?

House flies are usually gray in appearance and display four black stripes on their thorax. Adult house flies are about 1/8-1/4” (4 to 7.5 mm) long. They have slightly hairy bodies, a single pair of wings and compound red eyes, which contain thousands of individual lenses that allow them to have wider vision. Female house flies are usually larger than males. House flies do not have teeth or a stinger.

House fly eggs resemble small grains of rice. The eggs hatch into larvae, also known as maggots, which range in size from about ¼-3/8” (7-10 mm) long. Maggots are cream colored with a greasy appearance. When entering the pupal stage, maggots develop dark, hard outer shells, legs and wings, ultimately emerging as full-grown adult flies.

Signs of a House Fly Infestation

The most common sign of a house fly infestation is the presence of the flies, themselves. Larvae may also be seen crawling out of their breeding material as they pupate. Along with seeing house flies, people may hear them around the home. House flies produce a buzzing sounds which is a result of their two wings beating together.

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