Drain Fly Larva

Natural Habitat

Moist organic matter, particularly in drains, sewage systems, and bathroom pipes.

Diet & Feeding

Organic slime, algae, and decaying matter found in plumbing systems.

Behavior Patterns

They live in the film of slime inside drains and emerge as adults after pupating; they are often seen wiggling in standing water or moist areas.

Risks & Benefits

Harmless to humans as they do not bite or transmit disease, though they can be a nuisance indicating a need for drain cleaning; they help break down organic materials in the ecosystem.

Identified on: 3/27/2026