Bug Identifier
Drain Fly Larva
Community identification

Drain Fly Larva

Psychodidae family

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

Natural Habitat

Found in standing water and organic sludge in drains, sinks, toilets, and septic tanks.

Diet & Feeding

Organic slime, algae, fungi, and decaying matter found inside plumbing and drains.

Behavior Patterns

The larvae live in the gelatinous film that builds up on drain walls. They are nocturnal and stay submerged in the sludge to feed before pupating into adult flies.

Risks & Benefits

They do not bite or sting and are not known to transmit diseases, but their presence indicates a buildup of organic material needing cleaning. They are considered a nuisance pest.