The water centipede, also known as the water clip, is the larva of the dragon louse. The water centipede is long and cylindrical, with a slightly rounded head and a pair of large pincer-shaped jaws that resemble the poisonous chelipeds of a centipede. Water centipedes mainly prey on tadpoles and small fish aquatic animals. In late summer and early fall, the water centipede leaves the water body to the shore or garbage piles next to the pupa, the pupa more hiding under the stone, stone cracks, grass.