Alderfly larvae eat smaller invertebrates and are in turn eaten by larger aquatic organisms, such as crayfish and fish. They are also eaten by the larvae of their close relatives, the
What do fish fly larvae eat?
Fishflies lay their eggs upon vegetation overhanging streams, whence the larvae, as soon as hatched, drop into the water, and go about preying upon aquatic animals. ... They will eat aquatic plants as well as small animals including vertebrates like minnows and tadpoles, and may live up to seven days as adults.
Do alder flies bite?
Despite their appearance they are harmless. Unlike the lacewings, antlions and snakeflies, the immature stages of dobsonflies and alderflies are always aquatic. They live under stones or submerged vegetation and feed on a variety of small aquatic organisms using biting jaws.
