Bug Identifier
Unidentified small fly (likely fruit fly)
Community identification

Unidentified small fly (likely fruit fly)

Drosophila sp.

Order & Family
Diptera; Drosophilidae
Size
About 2–4 mm (0.08–0.16 in) long.
See this bug in the Encyclopedia

Natural Habitat

Common around fermenting fruit, sugary drinks, trash, drains, and damp indoor areas. The pictured insect is too indistinct for species-level identification.

Diet & Feeding

Adults feed on fermenting liquids, fruit juices, yeast, and microbial films; larvae develop in moist, fermenting organic material.

Behavior Patterns

Adults are weak, hovering fliers attracted to odors and light. Females lay eggs on fermenting material, and development can be rapid in warm conditions.

Risks & Benefits

Generally harmless and do not bite, though they can contaminate food and mechanically spread microbes. They help decompose organic matter and are important research organisms.