
Community identification
Rat-tailed maggot
Eristalis tenax
- Order & Family
- Diptera: Syrphidae
- Size
- 20 mm (body) to 100 mm (including tail)
Natural Habitat
Stagnant water rich in organic matter, such as lagoons, sewage, or manure pits
Diet & Feeding
Decaying organic matter and bacteria via filter feeding
Behavior Patterns
Uses its long respiratory siphon (tail) to breathe atmospheric air while submerged in low-oxygen environments
Risks & Benefits
Beneficial as pollinators in adult stage (drone fly); can rarely cause accidental intestinal myiasis in humans if contaminated water is ingested