# Appasus

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{{Short description|Genus of true bugs}}
{{Automatic taxobox
| image = Diplonychusjaponicus.jpg                                                            
| image_caption=Male ''[Appasus japonicus](/source/Appasus_japonicus)'' with eggs
| taxon = Appasus
| authority = [Amyot](/source/Charles_Jean-Baptiste_Amyot) and [Serville](/source/Jean_Guillaume_Audinet-Serville), 1843<ref>Amyot & Serville (1843). (Roret's Suite à Buffon) ''Hémiptères'': page 430.</ref>
| subdivision_ranks = Species
| subdivision = see text
}}

'''''Appasus''''' (from {{langx|sa|अप्|ap|lit=water}} and {{langx|sa|पशु|pashu|lit=beast; animal}}<ref>Amyot CJ-B, Audinet-Serville, JG (1843) Deuxième partie. Homoptères. ''Homoptera Latr. Histoire naturelle des Insectes. Hémiptères. Librairie Encyclopédique de Roret''. Paris. i-lxxvi, 1-676.</ref>) is a genus of [giant water bug](/source/giant_water_bug)s (family Belostomatidae) found in freshwater habitats in Asia and Africa.<ref name=Capinera2008>{{cite book | editor=Capinera, J.L. |year=2008 | title=Encyclopedia of Entomology | url=https://archive.org/details/encyclopediaento00capi_189 | url-access=limited | publisher=Springer | page=[https://archive.org/details/encyclopediaento00capi_189/page/n1683 1620] | edition=2 | isbn=978-1-4020-6242-1 }}</ref>

Giant water bugs exhibit male [parental care](/source/parental_care). In ''Appasus'' and other species in the subfamily [Belostomatinae](/source/Belostomatidae) (but not subfamily Lethocerinae), the female glues the eggs onto the male's back, and the male tends them until the eggs hatch.<ref>{{cite book |author=Robert L. Smith |date=1997 |chapter=Evolution of paternal care in the giant water bugs (Hemiptera: Belostomatidae) | editor=Jae C. Choe | editor2=Bernard J. Crespi |name-list-style=amp|title=The Evolution of Social Behavior in Insects and Arachnids Sociality |url=https://archive.org/details/evolutionsocialb00choe |url-access=limited |pages=[https://archive.org/details/evolutionsocialb00choe/page/n124 116]–149 |publisher=[Cambridge University Press](/source/Cambridge_University_Press) |isbn=978-0-511-72195-3  |doi=10.1017/CBO9780511721953.007}}</ref>

==Species==
Partial list of species:

{{Incomplete list|date=April 2018}}

*''[Appasus ampliatus](/source/Appasus_ampliatus)'' <small>(Montandon, 1914)</small>
*''[Appasus capensis](/source/Appasus_capensis)'' <small>Mayr, 1871</small>
*''[Appasus grassei](/source/Appasus_grassei)'' <small>(Poisson, 1937)</small>
*''[Appasus japonicus](/source/Appasus_japonicus)'' <small>(Vuillefroy, 1864)</small>
*''[Appasus major](/source/Appasus_major)'' <small>(Esaki, 1934)</small>
*''[Appasus quadrivittatus](/source/Appasus_quadrivittatus)'' <small>Bergroth, 1893</small>
*''[Appasus stappersi](/source/Appasus_stappersi)'' <small>(Montandon, 1916)</small>

==References==
{{Reflist}}

== External links ==
* [http://www.plosntds.org/article/slideshow.action?uri=info:doi/10.1371/journal.pntd.0000731&imageURI=info:doi/10.1371/journal.pntd.0000731.g002# image]{{dead link|date=October 2016 |bot=InternetArchiveBot |fix-attempted=yes }}

{{Taxonbar|from=Q4780956}}

Category:Belostomatidae
Category:Nepomorpha genera
Category:Taxa named by Charles Jean-Baptiste Amyot
Category:Taxa named by Jean Guillaume Audinet-Serville
Category:Hemiptera of Asia

{{Nepomorpha-stub}}

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Adapted from the Wikipedia article [Appasus](https://en.wikipedia.org/wiki/Appasus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Appasus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.