Drain Fly Larva
Scientific Name: Psychodidae family (e.g., Clogmia albipunctata)
Order & Family: Order: Diptera, Family: Psychodidae
Size: 3 to 10 mm in length
Natural Habitat
Moist environments containing organic matter, such as drains, sewage pipes, septic tanks, and wet soil.
Diet & Feeding
Decomposing organic matter, algae, bacteria, and fungi (biofilm) within plumbing systems.
Behavior Patterns
The larvae live within the gelatinous film found in drains. They are remarkably resilient to high temperatures and low oxygen. After pupating, they emerge as fuzzy, heart-shaped adult flies.
Risks & Benefits
Generally harmless to humans and do not bite. They act as decomposers by breaking down organic sludge. However, their presence indicates a buildup of biofilm or a slow-moving drain, and they can be a nuisance in kitchens and bathrooms.
Identified on: 4/2/2026