Pupa/Pupal Casing (Likely Fly or Carpet Beetle)

Scientific Name: Variable (e.g., Diptera puparium or Dermestidae pupa)

Order & Family: Order: Diptera (Flies) or Coleoptera (Beetles); Specific family depends on exact species (e.g., Calliphoridae or Dermestidae).

Size: Typically 3mm to 10mm in length.

Pupa/Pupal Casing (Likely Fly or Carpet Beetle)

Natural Habitat

Found in decaying organic matter, carpets, pantries, woolen fabrics, or near garbage depending on the species.

Diet & Feeding

The pupal stage is non-feeding. The larvae prior to this stage feed on organic waste, natural fibers (wool, silk), dried food products, or dead insects.

Behavior Patterns

The pupa is the immobile transformation stage between larva and adult. It does not move or eat. It is often found hidden in cracks, crevices, or near the larval food source.

Risks & Benefits

Generally harmless in this state, but indicates an infestation of larvae nearby. Carpet beetles can damage fabrics, while some flies are vectors for bacteria. Decomposers provide the benefit of breaking down organic waste.

Identified on: 2/12/2026