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Order Megaloptera - Alderflies, Dobsonflies, and Fishflies

Bug on my screen - Corydalus cornutus Possibly a webspinner? Giant Stonefly this insect was found near Namur in Outaouias in Quebec . It was around 15cm long. - Corydalus cornutus Alderfly - Sialis Dark Fishfly - Nigronia fasciata Alderfly - Sialis iola birthday dobsonfly - Corydalus cornutus - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Megaloptera (Alderflies, Dobsonflies, and Fishflies)
Synonyms and other taxonomic changes
Formerly considered a suborder of Neuroptera, called either Megaloptera or Sialodea.
Explanation of Names
From Greek megalo large, great; plus ptera wing. Term first used by Latreille, 1803 (1) (2).
Numbers
Nearctica lists only two families: Corydalidae with 22 species in 7 genera and Sialidae with 24 species, all in the genus Sialis.
See Also
Related groups in Superorder Neuropterida:
Megaloptera - Alderflies, Dobsonflies, and Fishflies
Raphidioptera - Snakeflies
Neuroptera - Antlions, Lacewings and Allies
Print References
Borror, entry for meg- alo (1)
The Century Dictionary--entry for Megaloptera (2)
Arnett, pp. 344-345 (3)
Internet References
Tree of Life--Megaloptera
Wikipedia--Megaloptera
Winds of Kansas.com--Megaloptera