Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Family Naucoridae - Creeping Water Bugs

Ambrysus sp. - Ambrysus Bentsen Naucorid, dorsal view - Pelocoris Pelocoris femoratus ? - Pelocoris creeping water bug - Pelocoris Creeping Water Bug - Pelocoris Creeping Water Bug - Pelocoris 9048291 waterbug - Pelocoris Water bug - Pelocoris
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)
Family Naucoridae (Creeping Water Bugs)
Numbers
22 spp. in 4-5 genera in our area(1), ~400 spp. in 37 genera worldwide(2)
Size
6-15 mm in our area(1), 5-20 mm globally(2)
Range
most of the world(2); in our area, more diverse in w. & sw. US(3)
Habitat
associated with submerged vegetation in ponds, lakes, marshes, swamps, rivers and streams(4)
Food
adults and nymphs are predacious on a variety of macroinvertebrates(4)
Remarks
our only representative of the superfamily Naucoroidea, that contains two more small families(2)
will bite painfully if carelessly handled(2)
Internet References
Family profile(5) (NB: treats Aphelocheiridae, Potamocoridae as part of Naucoridae!)
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.
3.Aquatic Insects of North America
R. W. Merritt, K. W. Cummins, M.B. Berg. 2008. Kendall/Hunt.
4.Identification manual for the aquatic and semi-aquatic Heteroptera of Florida
Epler J.H. 2006. FL Dept. Env. Prot., Tallahassee, FL. 186 pp.
5.What Bug Is That? The guide to Australian insect families