''Agabus'' is a large

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

predatory Predation is a biological interaction in which one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill ...

aquatic Aquatic means relating to water; living in or near water or taking place in water; does not include groundwater, as "aquatic" implies an environment where plants and animals live. Aquatic(s) may also refer to: * Aquatic animal, either vertebrate ...

beetle Beetles are insects that form the Taxonomic rank, order Coleoptera (), in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 40 ...

s in the family

Dytiscidae The Dytiscidae, from the Ancient Greek word δυτικός (''dystikos''), meaning "able to dive", are the predaceous diving beetles, a family of water beetles. They occur in virtually any freshwater habitat around the world, but a few species l ...

, proposed in 1817 by

William Elford Leach William Elford Leach (2 February 1791 – 25 August 1836) was an English zoologist and marine biologist. Life and work Elford Leach was born at Hoe Gate, Plymouth, the son of an attorney. At the age of twelve he began a medical apprenticesh ...

and named after

Agabus Agabus (; ; ) was an early follower of Christianity from Syria mentioned in the Acts of the Apostles as a prophet. He is traditionally remembered as one of the Seventy Disciples described in Luke . Name The name Agabus derived from the Aram ...

, an early follower of Christianity. The adult beetles are moderate-sized, 5 to 14 mm long. The genus is primarily

Holarctic The Holarctic realm is a biogeographic realm that comprises the majority of habitats found throughout the continents in the Northern Hemisphere. It corresponds to the floristic Boreal Kingdom. It includes both the Nearctic zoogeographical reg ...

in distribution, with only a few species known from the

Afrotropical The Afrotropical realm is one of the Earth's eight biogeographic realms. It includes Sub-Saharan Africa, the southern Arabian Peninsula, the island of Madagascar, and the islands of the western Indian Ocean. It was formerly known as the Ethiopi ...

and

Neotropical realm The Neotropical realm is one of the eight biogeographic realms constituting Earth's land surface. Physically, it includes the tropics, tropical Ecoregion#Terrestrial, terrestrial ecoregions of the Americas and the entire South American temperat ...

s. Ross H. Arnett, Michael C. Thomas (2002).
American Beetles: Staphyliniformi
'. Boca Raton, FL: CRC Press. . P. 175-176.Anders N. Nilsson, Mogens Holmen (1995).
The Aquatic Adephaga (Coleoptera) of Fennoscandia and Denmark: II - Dytiscidea
'. Leiden - a.o.: Brill. . P. 87. Three species of ''Agabus'', namely '' A. clypealis'', '' A. discicollis'' and '' A. hozgargantae'' are

endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, inv ...

according to the

IUCN Red List The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological ...

. The division into subgenera is not widely accepted. However, a number of

species group In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each oth ...

s are recognized after the works of David J. Larson and Anders N. Nilsson. The genus is probably

polyphyletic A polyphyletic group is an assemblage that includes organisms with mixed evolutionary origin but does not include their most recent common ancestor. The term is often applied to groups that share similar features known as Homoplasy, homoplasies ...

paraphyletic Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In co ...

. In a recent study of

mitochondrial DNA Mitochondrial DNA (mtDNA and mDNA) is the DNA located in the mitochondrion, mitochondria organelles in a eukaryotic cell that converts chemical energy from food into adenosine triphosphate (ATP). Mitochondrial DNA is a small portion of the D ...

, ''Agabus'' was found paraphyletic with respect to several of the species groups of ''

Platambus ''Platambus'' is a genus of beetle native to the Palearctic, including Europe, the Near East and North Africa. It distinguished by a wide epipleuron. The ventral surface has spot markings.Бей-Биенко Г. Я. 1 // Определитель ...

'', a closely related genus in the tribe Agabini. Lately the taxonomy of the genus has been revised, and some groups of species were transferred from ''Agabus'' ''

sensu stricto ''Sensu'' is a Latin word meaning "in the sense of". It is used in a number of fields including biology, geology, linguistics, semiotics, and law. Commonly it refers to how strictly or loosely an expression is used in describing any particular c ...

'' to other genera in the tribe Agabini. ''Agabus'' contains the following species:Dytiscidae Species List
at Joel Hallan's Biology Catalog. Texas A&M University. Retrieved on 7 May 2012. * ''

Agabus abessinicus ''Agabus abessinicus'' is a species of beetle belonging to the family Dytiscidae. It is found in Ethiopia Ethiopia, officially the Federal Democratic Republic of Ethiopia, is a landlocked country located in the Horn of Africa region of ...

'' (Zimmermann, 1928) * ''

Agabus adpressus ''Agabus adpressus'' is a species of beetle belonging to the family Dytiscidae. In North America this species has been found in Alaska, the Northwest Territories, and Southampton Island. It also ranges from northern Scandinavia to eastern Siberia ...

'' Aubé, 1837 * ''

Agabus adustus ''Agabus adustus'' is a species of predatory diving beetle belonging to the family Dytiscidae. It is restricted to the Himalayas The Himalayas, or Himalaya ( ), is a mountain range in Asia, separating the plains of the Indian subcontinent ...

'' Guignot, 1954 * '' Agabus aequabilis'' (Gschwendtner, 1923) * '' Agabus aequalis'' Sharp, 1882 * '' Agabus aeruginosus'' Aubé, 1838 * '' Agabus affinis'' (Paykull, 1798) * '' Agabus africanus'' Pederzani & Schizzerotto, 1998 * '' Agabus ajax'' Fall, 1922 * '' Agabus alexandrae'' Ribera, Hernando & Aguilera, 2001 * '' Agabus alinae'' (Lafer, 1988) * '' Agabus ambiguus'' (Say, 1823) * '' Agabus ambulator'' Régimbart, 1895 * '' Agabus amnicola'' (J.Sahlberg, 1880) * '' Agabus amoenus'' Solsky, 1874 * '' Agabus ancillus'' Fall, 1922 * '' Agabus angusi'' Nilsson, 1994 * '' Agabus antennatus'' Leech, 1939 * '' Agabus anthracinus'' Mannerheim, 1852 * '' Agabus approximatus'' Fall, 1922 * '' Agabus arcticus'' (Paykull, 1798) * '' Agabus aubei'' Perris, 1869 * '' Agabus audeni'' Wallis, 1933 * '' Agabus austinii'' Sharp, 1882 * '' Agabus bakeri'' (Zimmermann, 1924) * '' Agabus basalis'' (Gebler, 1829) * '' Agabus bergi'' Zaitzev, 1913 * '' Agabus bicolor'' (Kirby, 1837) * '' Agabus bifarius'' (Kirby, 1837) * '' Agabus biguttatus'' (Olivier, 1795) * '' Agabus biguttulus'' (Thomson, 1867) * '' Agabus binotatus'' Aubé, 1837 * '' Agabus bipustulatus'' (

Linnaeus Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...

, 1767) * '' Agabus blatta'' Jakovlev, 1897 * '' Agabus brandti'' Harold, 1880 * '' Agabus browni'' Kamiya, 1934 * '' Agabus brunneus'' (Fabricius, 1798) * '' Agabus canadensis'' Fall, 1922 * '' Agabus caraboides'' Sharp, 1882 * '' Agabus cephalotes'' Reiche, 1861 * '' Agabus charon'' Wickham, 1912 * '' Agabus clavicornis'' Sharp, 1882 * '' Agabus clypealis'' (Thomson, 1867) * '' Agabus colymbus'' Leech, 1938 * '' Agabus confinis'' (Gyllenhal, 1808) * ''

Agabus congener ''Agabus congener'' is a species of predatory beetle native to the Palearctic (including Europe) and the Near East. In Europe, it is only found in Andorra, Austria, Belarus, Belgium, Great Britain including Shetland, Orkney, Hebrides and Isle o ...

'' (Thunberg, 1794) * '' Agabus congeneroides'' Lomnicki, 1894 * '' Agabus conspersus'' (Marsham, 1802) * '' Agabus conspicuus'' Sharp, 1873 * '' Agabus corticeus'' Lomnicki, 1894 * '' Agabus costulatus'' (Motschulsky, 1859) * '' Agabus coxalis'' Sharp, 1882 * '' Agabus crassipes'' (Fall, 1922) * '' Agabus crypticoides'' Régimbart, 1895 * '' Agabus debilipes'' Régimbart, 1899 * '' Agabus dichrous'' Sharp, 1878 * '' Agabus didymus'' (Olivier, 1795) * '' Agabus dilatatus'' (Brullé, 1832) * '' Agabus discolor'' (Harris, 1828) * '' Agabus disintegratus'' (Crotch, 1873) * '' Agabus dytiscoides'' Régimbart, 1908 * '' Agabus elongatus'' (Gyllenhal, 1826) * '' Agabus erytropterus'' (Say, 1823) * '' Agabus faldermanni'' Zaitzev, 1927 * '' Agabus falli'' (Zimmermann, 1934) * '' Agabus freudei'' Guéorguiev, 1975 * '' Agabus friedrichi'' (Falkenström, 1936) * '' Agabus fulvaster'' Zaitzev, 1906 * '' Agabus fulvipennis'' Régimbart, 1899 * '' Agabus fuscipennis'' (Paykull, 1798) * '' Agabus galamensis'' Nilsson, 1992 * '' Agabus glacialis'' Hochhuth, 1846 * '' Agabus glazunovi'' (Zaitzev, 1953) * '' Agabus godmanni'' Crotch, 1867 * '' Agabus granulatus'' (Falkenström, 1936) * '' Agabus gringo'' Larson, 2000 * '' Agabus griseipennis'' LeConte, 1859 * '' Agabus guttatus'' (Paykull, 1798) * '' Agabus heydeni'' Wehncke, 1872 * '' Agabus hoppingi'' Leech, 1942 * '' Agabus hummeli'' (Falkenström, 1936) * '' Agabus immaturus'' Larson, 1991 * '' Agabus inexspectatus'' Nilsson, 1990 * '' Agabus infuscatus'' Aubé, 1838 * '' Agabus inscriptus'' (Crotch, 1873) * '' Agabus jacobsoni'' Zaitzev, 1905 * ''

Agabus japonicus Agabus (; ; ) was an early follower of Christianity from Syria mentioned in the Acts of the Apostles as a prophet. He is traditionally remembered as one of the Seventy Disciples described in Luke . Name The name Agabus derived from the Aramaic ...

'' Sharp, 1873 * '' Agabus kaszabi'' Guéorguiev, 1972 * '' Agabus kholini'' Nilsson, 1994 * '' Agabus klamathensis'' Larson & Leech, 1989 * '' Agabus kokoosson'' Feng, 1936 * '' Agabus kootenai'' Larson, 1991 * '' Agabus labiatus'' (Brahm, 1790) * '' Agabus laferi'' Nilsson, 1994 * '' Agabus lagabrunensis'' Schizzerotto & Fery, 1989 * '' Agabus lapponicus'' (Thomson, 1867) * '' Agabus leptapsis'' (LeConte, 1878) * '' Agabus lineatus'' Gebler, 1848 * '' Agabus lithax'' Riha, 1961 * '' Agabus lobonyx'' Guignot, 1952 * '' Agabus loeffleri'' Wewalka & Nilsson, 1990 * '' Agabus longissimus'' Régimbart, 1899 * '' Agabus luteaster'' Zaitzev, 1906 * '' Agabus lutosus'' LeConte, 1853 * '' Agabus mackenziensis'' Larson, 1991 * '' Agabus maderensis'' Wollaston, 1854 * '' Agabus mandsuricus'' (Guignot, 1956) * '' Agabus margaretae'' Larson, 1975 * '' Agabus matsumotoi'' Satô & Nilsson, 1990 * '' Agabus melanarius'' Aubé, 1837 * '' Agabus moestus'' (Curtis, 1835) * '' Agabus morosus'' LeConte, 1852 * '' Agabus mucronatus'' (Falkenström, 1936) * '' Agabus nebulosus'' (Forster, 1771) * '' Agabus nevadensis'' Hå.Lindberg, 1939 * '' Agabus niedzwiedzkii'' Lomnicki, 1894 * '' Agabus obliteratus'' LeConte, 1859 * '' Agabus oblongulus'' Fall, 1922 * '' Agabus obsoletus'' LeConte, 1858 * '' Agabus ommani'' Zaitzev, 1908 * '' Agabus pallens'' Poppius, 1905 * '' Agabus pallidus'' Omer-Cooper, 1931 * '' Agabus paludosus'' (Fabricius, 1801) * '' Agabus parvulus'' Lomnicki, 1894 * '' Agabus perditus'' Scudder, 1900 * '' Agabus perssoni'' Nilsson, 1992 * '' Agabus phaeopterus'' (Kirby, 1837) * '' Agabus philippensis'' (Zimmermann, 1924) * '' Agabus picotae'' Foster & Bilton, 1997 * '' Agabus pisobius'' Leech, 1949 * '' Agabus poppiusi'' Nilsson, 2003 * '' Agabus pseudoclypealis'' Scholz, 1933 * '' Agabus punctatus'' F.E.Melsheimer, 1844 * '' Agabus punctulatus'' Aubé, 1838 * '' Agabus raffrayi'' Sharp, 1882 * '' Agabus ragazzii'' Régimbart, 1887 * '' Agabus ramblae'' Millán & Ribera, 2001 * '' Agabus rathbuni'' Scudder, 1900 * '' Agabus regimbarti'' Zaitzev, 1906 * '' Agabus reitteri'' Lomnicki, 1894 * '' Agabus rottensis'' Nilsson, 2001 * '' Agabus rufipennis'' (Gschwendtner, 1933) * '' Agabus rufulus'' Fairmaire, 1859 * '' Agabus rumppi'' Leech, 1964 * '' Agabus ruwenzoricus'' Guignot, 1936 * '' Agabus safei'' Abdul-Karim & Ali, 1986 * '' Agabus sasquatch'' Larson, 1991 * '' Agabus semipunctatus'' (Kirby, 1837) * '' Agabus serricornis'' (Paykull, 1799) * '' Agabus setulosus'' (J.Sahlberg, 1895) * '' Agabus sikhotealinensis'' (Lafer, 1988) * '' Agabus sjostedti'' Régimbart, 1908 * '' Agabus slovzovi'' (J.Sahlberg, 1880) * '' Agabus smithi'' Brown, 1930 * '' Agabus solskii'' Jakovlev, 1897 * '' Agabus strigulosus'' (Crotch, 1873) * '' Agabus striolatus'' (Gyllenhal, 1808) * '' Agabus sturmii'' (Gyllenhal, 1808) * '' Agabus subfuscatus'' Sharp, 1882 * '' Agabus suoduogangi'' Stastný & Nilsson, 2003 * '' Agabus svenhedini'' (Falkenström, 1932) * '' Agabus taeniolatus'' (Harris, 1828) * '' Agabus taiwanensis'' Nilsson & Wewalka, 1994 * '' Agabus thomsoni'' (J.Sahlberg, 1871) * '' Agabus tibetanus'' Zaitzev, 1908 * '' Agabus tristis'' Aubé, 1838 * '' Agabus turcmenus'' Guignot, 1957 * '' Agabus udege'' Nilsson, 1994 * '' Agabus uliginosus'' (

, 1761) * '' Agabus undulatus'' (Schrank, 1776) * '' Agabus ungeri'' (Heer, 1847) * '' Agabus unguicularis'' (Thomson, 1867) * '' Agabus uralensis'' Nilsson & Petrov, 2006 * '' Agabus valdiviensis'' Gemminger & Harold, 1868 * '' Agabus velox'' Leech, 1939 * '' Agabus vereschaginae'' Angus, 1984 * '' Agabus winkleri'' (Gschwendtner, 1923) * '' Agabus wollastoni'' Sharp, 1882 * '' Agabus xyztrus'' Larson, 2000 * '' Agabus yakutiae'' Nilsson & Larson, 1990 * '' Agabus zetterstedti'' Thomson, 1856 * '' Agabus zimmermanni'' Scholz, 1920

References

External links

Genus Agabus Leach, 1817 (Coleoptera, Dytiscidae) (atlas of beetles of Russia)
{{DEFAULTSORT:Agabus (Beetle) Dytiscidae genera Taxa named by William Elford Leach

References

Further reading

External links