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Superfamily Nepoidea

Waterscorpion - Ranatra Ranatra fusca ID help - Ranatra buenoi Water bug - Belostoma Lethocerus Americanus (aka: Canadian Toe Biter?) - Lethocerus americanus West Virginia Ranatra - Ranatra Ranatra - Ranatra australis Aquatic Beetle - Belostoma flumineum
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Infraorder Nepomorpha (Aquatic Bugs)
Superfamily Nepoidea
Numbers
2 families, with 32 spp. in 6 genera in our area(1) and ~430 spp. in 24 genera worldwide(2)
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.Biodiversity of the Heteroptera
Henry T.J. 2009. In: Foottit R.G., Adler P.H., eds. Insect biodiversity: Science and society. Oxford: Wiley-Blackwell: 223-263.