1) Arrowworm 
A glassworm is a type of midge larva called Chaoborus. They are also known as phantom midge larvae, because they are transparent. They can be found commonly in lakes all over the world and can be up to 2 centimeters in length. Glassworms are almost entirely transparent, except for pairs of black kidney-shaped structures in the front and the back o...
arrowworm.