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Genus Notonecta

Backswimmer - Notonecta irrorata Backswimmer - Notonecta lunata Backswimmer - Notonecta Backswimmer, Notonecta? - Notonecta Backswimmer  - Notonecta irrorata Backswimmer - Notonecta undulata Backswimmer - Notonecta lunata Notonecta - Notonecta undulata
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Family Notonectidae (Backswimmers)
Genus Notonecta
Numbers
Insects of Cedar Creek lists 35 North American species .
Size
Large. The widespread Notonecta undulata is 18-20 mm. Notonecta insulata: 12-16 mm.
Identification
Typically large, common backswimmers. Eyes separated along midline, middle femur with a pointed spine before distal end (1).
Range
Much of North America.
Habitat
Aquatic
Print References
Slater, pp. 226-229, figs. 457-468 (1)
Arnett, p. 280, fig. 20.63, 20.64 (2)
Internet References
Insects of Cedar Creek: genus, family page
Works Cited
1.How to Know the True Bugs
By Slater, James A., and Baranowski, Richard M.
2.American Insects: A Handbook of the Insects of America North of Mexico
By Ross H. Arnett