Image: Close up of a maggot spiracle
A close up of one spiracle (breathing apparatus) of a fly maggot. Electron micrograph.
- S. Lindsay
- © Australian Museum
The rear ends of maggots (fly larvae) consist of a chamber, in which their anus and posterior spiracles are located. (They also have anterior spiracles). Spiracles are used for breathing, and the possession of spiracles in a posterior location means that maggots can breath feeding 24 hours a day.