What do alderfly larva eat?

Answer 1

Alder leaf beetles eat leaves. They skeletonize the leaves of the host trees, leaving just the veins, and slowly killing the tree.

Answer 2

Alderfly larvae are active predators of other water bugs and have strong jaws (mandibles), which they use to grasp their prey.

Answer 3

Alderfly larvae eat smaller invertebrates and are in turn eaten by larger aquatic organisms, such as crayfish and fish.