Drain Fly Larva

Damp environments rich in decaying organic matter; frequently found in sink drains, shower stalls, sewage pipes, and moist compost.

Decomposing organic material, algae, bacteria, and fungi (the 'slime' that builds up inside drains).

Larvae are aquatic or semi-aquatic but breathe air. They are not swimmers but wriggle through slime layers. They undergo complete metamorphosis (egg, larva, pupa, adult) very rapidly, often completing their cycle in 1-3 weeks.

Risks: Generally harmless to humans and do not bite or sting. However, in large numbers, they are a nuisance and can mechanically transmit bacteria from unsanitary drains to food surfaces. Benefits: They help decompose organic sludge in pipes, acting as decomposers.