Bug Identifier
Phorid Fly (Scuttle Fly)
Community identification

Phorid Fly (Scuttle Fly)

Megaselia scalaris (and other Phoridae species)

Order & Family
Order Diptera, Family Phoridae
Size
0.5 to 5.5 mm (1/64 to 1/5 inch)
See this bug in the Encyclopedia

Natural Habitat

Moist decaying organic matter, drains, compost bins, soil of potted plants, sewage pipes, and trash cans indoors and outdoors.

Diet & Feeding

Larvae feed on decomposing plant and animal matter, fungi, sewage sludge, and organic debris in drains. Adults feed on liquids, nectar, and honeydew.

Behavior Patterns

Characterized by a erratic 'scuttling' running behavior across surfaces instead of immediately taking flight when disturbed. They have a distinctly humped back profile and strong hind legs.

Risks & Benefits

Risks: Considered persistent indoor pests as they can spread bacteria and pathogens from sewage/decaying matter onto food surfaces. Benefits: Important decomposers in natural ecosystems that help break down organic waste.