This aquatic larva of a drone fly, <i>Eristalis tenax</i> (Syrphidae), is called a rat-tailed maggot because of the long, respiratory appendage at its rear end.
This aquatic larva of a drone fly, Eristalis tenax (Syrphidae), is called a rat-tailed maggot because of the long, respiratory appendage at its rear end.
Credit: Jack Kelly Clark