Drain Fly Larva

Natural Habitat

Found in moist, organic-rich environments such as bathroom drains, septic tanks, grease traps, and damp compost.

Diet & Feeding

Larvae feed on the gelatinous film of organic matter, fungi, and bacteria that accumulates in sewage and plumbing pipes.

Behavior Patterns

Larvae stay submerged or semi-submerged in sludge; they breathe through a small tube at the end of their body. They move by wiggling through the slime.

Risks & Benefits

They do not bite or transmit diseases directly, but can indicate plumbing issues or sanitation needs. In the ecosystem, they are beneficial decomposers that break down organic waste.

Identified on: 3/13/2026