Fruit Fly (Vinegar Fly)

Natural Habitat

Commonly found in residential kitchens, restaurants, and grocery stores where overripe fruit or fermenting organic matter is present.

Diet & Feeding

Larvae and adults feed on microorganisms (yeast) found on decaying/fermenting fruit and vegetables.

Behavior Patterns

Very short life cycle (~8-10 days); attracted to the smell of fermentation and acetic acid; and highly active during the day.

Risks & Benefits

Generally considered a nuisance pest that can contaminate food with bacteria; however, they are invaluable model organisms in genetic and biological research.

Identified on: 3/28/2026