Drain Fly Larva

Moist areas with organic slime or film, typically in household drains, sewers, or wet basement areas.

Feeds on decaying organic matter, algae, bacteria, and fungi found in sludge or slime layers.

Larvae are aquatic or semi-aquatic, living within the gelatinous film of drains. They can survive in low-oxygen environments by using a breathing tube.

Generally harmless to humans. While they do not bite or spread disease, their presence indicates a buildup of organic material and they can occasionally be mechanical vectors for bacteria.