Drain fly larva

Damp environments rich in organic matter, such as drains, sewer pipes, septic tanks, and wet compost.

Decomposing organic matter, algae, bacteria, and fungi (biofilm) found in stagnant water or drainage systems.

Larvae are sub-aquatic and breathe through a small tube; they pupate in 9-15 days before emerging as fuzzy, moth-like adult flies.

Generally harmless to humans but can indicate a clog or sanitation issue; they play an ecosystem role by breaking down organic sludge in drains.