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See Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

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Previous events


Order Megaloptera - Alderflies, Dobsonflies, and Fishflies

Dark Fishfly - Nigronia serricornis - male Alderfly - Sialis iola Eastern Dobsonfly - Corydalus cornutus - male Neohermes sp. - Neohermes Painted Eggs - Corydalus cornutus Pincer Bug - Corydalus cornutus Eastern Dobsonfly - Corydalus cornutus Nymph_05102021_GH_3813_1
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Megaloptera (Alderflies, Dobsonflies, and Fishflies)
Synonyms and other taxonomic changes
Formerly treated as a part of Neuroptera
Explanation of Names
Greek megalo 'large, great' + pteron 'wing'
43 spp. in 8 genera of 2 families in our area(1)(2)
key to larvae & adults of the eastern spp.(3)
Life Cycle
Holometabolous, complete metamorphosis. Larva may take 1 to 5 years to complete development.
See Also
other Neuropterida: Raphidioptera, Neuroptera
Print References
Internet References
Works Cited
1.Species catalog of the Neuroptera, Megaloptera, and Raphidioptera of America North of Mexico
Penny N.D., Adams P.A., Stange L.A. 1997. Proc. Calif. Acad. Sci. 50: 39-114.
2.Neuropterida Species of the World catalogue (by J.D. Oswald)
3.Bright E. (2002-2011) Aquatic Insects of Michigan
4.A preliminary survey of the Megaloptera of Oklahoma
Arnold D.C., Drew W.A. 1987. Proc. Okla. Acad. Sci. 67: 23-26.
5.Alderflies, fishflies and dobsonflies (Insecta: Megaloptera) of the Interior Highlands, U.S.A.
David E. Bowles and Robert W. Sites. 2015. Transactions of the American Entomological Society, Vol. 141. Issue 3, pp. 405-429.
6.Beckemeyer R.J. Neuropterida (Neuroptera, Megaloptera and Raphidioptera) of Kansas