Fly Puparium

Natural Habitat

Often found in indoor environments near organic decay, trash cans, or hidden corners; outdoors in soil or leaf litter.

Diet & Feeding

The pupa does not eat; however, the larval stage (maggot) typically feeds on decaying organic matter or waste.

Behavior Patterns

This is the non-moving, protective casing for the transformation stage from larva to adult fly. It remains stationary until the adult emerges.

Risks & Benefits

Generally harmless as a pupa, but indicates a nearby breeding site. High numbers may suggest sanitation issues or a hidden source of decay (risks of spreading bacteria by adult flies).

Identified on: 3/23/2026