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Genus Notonecta

Backswimmer - Notonecta kirbyi Notonecta irrorata Redbacked backswimmer - Notonecta lobata  Notonecta undulata? - Notonecta unifasciata Backswimmer - Notonecta uhleri Backswimmer - Notonecta undulata Boatman - Notonecta undulata
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 Notonectoidea
Family Notonectidae (Backswimmers)
Genus Notonecta
Explanation of Names
Notonecta Linnaeus 1758
from Greek noto 'the back' + necta 'swimmer'
Numbers
17 spp. in 4 subgenera in NA(1)
(6 in NH(2), 5 in MI(3), 6 in NC(4), 4 in FL(5), 9 in TX(6))
Size
8-16 mm
Identification
rather large, common backswimmers; eyes widely separated; middle femur with a pointed spine before distal end(7)
Keys to spp. provided in(7)(5)(3)
Range
widespread(1)
Works Cited
1.Aquatic Insects of North America
R. W. Merritt, K. W. Cummins, M.B. Berg. 2008. Kendall/Hunt.
2.University of New Hampshire Insect and Arachnid Collections
3.Bright E. (2002-2011) Aquatic Insects of Michigan
4.NCSU insect collection species inventory database
5.Identification manual for the aquatic and semi-aquatic Heteroptera of Florida
Epler J.H. 2006. FL Dept. of Environmental Protection, Tallahassee, FL. 186 pp.
6.Ziser S.W. (2008-) The aquatic invertebrates of Texas
7.How to Know the True Bugs
Slater, James A., and Baranowski, Richard M. 1978. Wm. C. Brown Company.