Nepidae: Difference between revisions
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==See also== |
==See also== |
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*[[Eurypterid]] – unrelated arachnids that are commonly called '' |
*[[Eurypterid]] – unrelated arachnids that are commonly called ''′mikey smells it said it on Wikipedia''' |
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==References== |
==References== |
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Revision as of 04:39, 22 August 2011
| Nepidae | |
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| Nepa cinerea | |
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| Family: | Nepidae
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| Subfamilies, Genera | |
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Ranatrinae Nepinae | |
Nepidae is a family of insects in the order Hemiptera, suborder Heteroptera.[1] They are commonly called waterscorpions for their superficial resemblance to a scorpion, which is due to the raptorial forelegs and the presence of a long slender process at the posterior end of the abdomen, simulating a tail. There are 14 genera in the family, in two subfamilies, Nepinae and Ranatrinae. Members of the genus Ranatra are sometimes called needle bugs or water stick insects as they are more slender than Nepa and feed primarily on invertebrates, but occasionally take small fish or tadpoles. Respiration in the adult is effected by means of the caudal process, which consists of a pair of half-tubes capable of being locked together to form a siphon by which air is conducted to the 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 undeveloped and breathing 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.
In Nepa the body is broad and flat; but in an allied water-bug, Ranatra, which contains a single British species (R. linearis), it is long and narrow, while the legs are very slender and elongated.
See also
- Eurypterid – unrelated arachnids that are commonly called ′mikey smells it said it on Wikipedia'
References
- I. Lansbury, T.E. Woodward (1974). "A new genus of Nepidae from Australia with a revised classification of the family (Hemiptera: Heteroptera)". Australian Journal of Entomology. 13 (3): 219–227.
{{cite journal}}: Unknown parameter|quotes=ignored (help) - Nepidae, Tree of life project
This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). Encyclopædia Britannica (11th ed.). Cambridge University Press. {{cite encyclopedia}}: Missing or empty |title= (help)
