1) Alder fly 2) Neuropteran 3) Neuropteron 4) Neuropterous insect 5) Sialis lutaria 1) Sialid 
Alderflies are megalopteran insects of the family Sialidae. They are closely related to the dobsonflies and fishflies as well as to the prehistoric Euchauliodidae. All living alderflies - about 66 species altogether - are part of the subfamily Sialinae, which contains between one and seven extant genera according to different scientists` views. B....
any insect of the megalopteran family Sialidae, characterized by long, filamentous antennae and two pairs of large wings (anterior wing length 20 to ... [2 related articles]
[n] - dark-colored insect having predaceous aquatic larvae
Megaloptera - the Order Megaloptera are primitive insects. The Order contains about 300 species. Insects in the Order are known by a variety of names including Alderflies, Dobsonflies and Fishflies.
alder fly noun dark-colored insect having predaceous aquatic larvae
any of several dark-colored neuropterous insects of the family Sialidae, the larvae of which are aquatic and predacious on other aquatic insects.