Drain Fly Larva (Moth Fly Larva)

Found in moist, organic-rich environments such as sink drains, bathroom pipes, sewers, septic tanks, and wet compost. They thrive in the gelatinous slime (biofilm) that coats the inside of plumbing.

Feeds on decaying organic matter, sewage sludge, algae, bacteria, and fungi found within drainage systems and standing water.

The larvae differ from the adults; they are legless and worm-like with dark bands (dorsal plates) along their bodies. They live in aquatic or semi-aquatic sludge, breathing through a small tube at their posterior end. They eventually pupate into small, fuzzy, moth-like flies.

Risks: Primarilly a nuisance pest in homes. While they do not bite or sting, they breed in bacteria-laden drains and can technically transfer microbes to household surfaces mechanically. Benefits: In nature and sewage treatment processing, they play a beneficial role in decomposing organic waste and breaking down sludge.