Water-Scorpion

Nepidae
Nepa cinerea
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Suborder: Heteroptera
Infraorder: Nepomorpha
Family: Nepidae
Subfamilies, Genera

Ranatrinae

Austronepa
Cercotmetus
Goondnomdanepa
Ranatra

Nepinae

Borborophilus
Borborophyes
Curicta
Laccotrephes
Montonepa
Nepa
Nepella
Nepita
Paranepa
Telmatotrephes

Nepidae is a family of exclusively aquatic tracheae at the apex of the abdomen when the tip of the tube is thrust above the surface of the water. In immature forms the siphon is often underdeveloped and respiration takes place through six pairs of abdominal spiracles. The eggs, which are laid above the waterline in mud, decomposing vegetation, the stems of plants or rotting wood, are supplied with air by filamentous processes which vary in number among the genera.

Species in the subfamily Nepinae tend to have a broad, flat body measuring over two inches in length, whereas those in the subfamily Ranatrinae tend to have a long and narrow body, with similarly long and slender legs.

See also

  • Eurypterid – unrelated arachnids that are commonly called ′Sea Scorpions′

References


  • Nepidae, Tree of life project

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External links

  • http://www.bugsurvey.nsw.gov.au/html/popups/bpedia_18_tol_wa-sc.html
  • http://www.dnr.state.wi.us/org/caer/ce/eek/critter/watercritter/scorpion.htm
  • http://eny3005.ifas.ufl.edu/lab1/Hemiptera/Nepid.htm
  • http://delta-intkey.com/britin/hem/www/nepidae.htm

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