Drain Fly Larva

Commonly found in moist areas rich in organic matter such as sink drains, sewers, septic tanks, and damp soil.

Feeds on the slimy film of bacteria, fungi, and decomposing organic matter (biofilm) that accumulates in drains and pipes.

They live aquatic or semi-aquatic lives within the sludge of drains. They are typically nocturnal and progress through four larval instars before pupating.

Generally harmless to humans and do not bite or transmit diseases, but their presence can indicate a sanitation issue or a clog in the plumbing. They help break down organic waste in sewage systems.