Bug Identifier
Drain Fly Larva
Community identification

Drain Fly Larva

Psychodidae family (e.g., Clogmia albipunctata)

Order & Family
Order: Diptera, Family: Psychodidae
Size
3 mm to 10 mm in length
See this bug in the Encyclopedia

Natural Habitat

Moist, organic-rich environments such as bathroom drains, grease traps, septic tanks, and wet compost.

Diet & Feeding

Decomposing organic matter, algae, bacteria, and fungi (biofilm) found in pipes and drains.

Behavior Patterns

Larvae live within the slime layer (biofilm) of drains. They are resilient to soap and hot water, breathing through small tubes while submerged. Their life cycle from egg to adult takes about 7 to 28 days.

Risks & Benefits

They do not bite or transmit diseases to humans. While they are a nuisance, they actually benefit the ecosystem by breaking down organic sludge in plumbing. However, large infestations indicate a need for drain cleaning.