Megaloptera Temporal range: Permian - Recent
Alderfly Corydalus cornutus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Infraclass:	Neoptera
Order:	Megaloptera Latreille, 1802
Families
Corydalidae Sialidae and see text

Megaloptera is an order of insects. It contains the alderflies, dobsonflies and fishflies. There are about 300 known species.