Drain Fly Larva

Moist areas with organic matter, such as drains, sewage pipes, septic tanks, and damp soil.

Decaying organic matter, biofilm, algae, and microscopic organisms found in slime layers.

They are aquatic or semi-aquatic; the larvae live in the gelatinous film that forms in drains and pipes, eventually pupating before emerging as adult flies.

Generally harmless to humans; they do not bite or sting. They benefit the ecosystem by breaking down organic waste, though a large population may indicate a drainage issue.