Moth Fly Larva

Moist areas with thick organic matter such as drain pipes, sewage filters, and compost piles.

Organic sludge, nutrient-rich film, algae, bacteria, and fungi.

Larvae live within the gelatinous film layer of drains; they breathe through a specialized tube that breaks the surface of the film.

Harmless to humans as they do not bite; they provide a benefit by breaking down organic buildup in plumbing systems, though adults can be a nuisance.