Fruit fly

Scientific Name: Drosophila melanogaster

Order & Family: Order: Diptera, Family: Drosophilidae

Size: 3 to 4 mm in length

Fruit fly

Natural Habitat

Commonly found in residential kitchens, bathrooms, and near sources of damp organic matter such as sink drains, garbage disposals, and water filtration systems.

Diet & Feeding

Larvae feed on microbial growth (yeast and bacteria) found in fermenting organic matter; adults feed on ripening or rotting fruits and vegetables, and slimy films of organic material.

Behavior Patterns

Fruit flies are highly attracted to moist environments and fermented smells. They have a very rapid life cycle, progressing from egg to adult in about 8-10 days, and are capable of laying hundreds of eggs in a short time.

Risks & Benefits

While they do not bite, they are considered a nuisance and a sanitation risk. They can transport bacteria and pathogens from contaminated surfaces (like trash or drains) onto food-contact surfaces or drinking water components. They do not provide significant benefits in a domestic setting.

Identified on: 2/24/2026