Rat-tailed maggot (larval stage)
Scientific Name: Eristalis tenax
Order & Family: Diptera: Syrphidae
Size: 20mm to 35mm (larvae), plus a long breathing tube.

Natural Habitat
Stagnant water, polluted ditches, lagoons, and organic-rich moist environments.
Diet & Feeding
Feeds on decaying organic matter, bacteria, and microscopic organisms in stagnant water.
Behavior Patterns
Uses a long, telescopic tail to breathe atmospheric air while submerged in low-oxygen environments. They eventually migrate to drier ground to pupate.
Risks & Benefits
Adults (Drone flies) are beneficial pollinators. Larvae can occasionally cause accidental 'intestinal myiasis' if ingested in contaminated water, but they are generally harmless to humans and help break down organic waste.
Identified on: 12/28/2025