Drain Fly Larva

Moist environments with organic buildup, such as drains, sewage pipes, septic tanks, and wet compost.

Decomposing organic matter, algae, bacteria, and fungi (biofilm) found inside plumbing and moist areas.

The larvae live within the gelatinous film of drains; they are remarkably resilient to soap and hot water. They undergo complete metamorphosis into small, fuzzy, moth-like flies.

They do not bite and are not typically known to transmit diseases to humans. While they help break down organic sludge, their presence usually indicates a hygiene or plumbing issue (clogs/buildup) that requires cleaning.