Drain Fly Larvae

Found in moist environments rich in organic matter, such as bathroom drains, septic tanks, sewers, and damp soil.

They feed on decaying organic matter, algae, fungi, and bacteria found in the gelatinous film that forms in drains.

Larvae are aquatic or semi-aquatic and live within the film of drains. They possess a characteristic breathing tube (siphon) visible at the tail. They pupate near the surface of the organic film before emerging as fuzzy, moth-like adult flies.

They generally do not bite or transmit diseases to humans. However, their presence indicates a buildup of organic material or potential plumbing issues. In large numbers, they can be a nuisance, but they benefit ecosystems by breaking down organic waste.