Agabus is a large genus of predatory aquatic beetles in the family Dytiscidae, proposed in 1817 by William Elford LeachZool. Misc., 3: 69, 72. Type species: Agabus paykullii Leach, 1817 (= Dytiscus serricornis Paykull, 1799) and named after Agabus, an early follower of Christianity. The adult beetles are moderate-sized, 5 to 14 mm long. The genus is primarily Holarctic in distribution, with only a few species known from the Afrotropical and Neotropical realms.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,Foster, G. 1996. . In: IUCN 2008. 2008 IUCN Red List of Threatened Species. Accessed on 28 November 2008. A. discicollisFoster, G. 1996. . In: IUCN 2008. 2008 IUCN Red List of Threatened Species. Accessed on 28 November 2008. and A. hozgargantaeFoster, G. 1996. . In: IUCN 2008. 2008 IUCN Red List of Threatened Species. Accessed on 28 November 2008. are endangered according to the IUCN Red List. The division into subgenera is not widely accepted. However, a number of species groups are recognized after the works of David J. Larson and Anders N. Nilsson. The genus is probably polyphyletic or paraphyletic. In a recent study of mitochondrial DNA, Agabus was found paraphyletic with respect to several of the species groups of Platambus, a closely related genus in the tribe Agabini.Ignacio Ribera, Anders N. Nilsson, Alfried P. Vogler (2004). Phylogeny and historical biogeography of Agabinae diving beetles (Coleoptera) inferred from mitochondrial DNA sequences. Molecular Phylogenetics and Evolution 30 (3): 545-562. Lately the taxonomy of the genus has been revised, and some groups of species were transferred from Agabus sensu stricto 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 (Zimmermann, 1928) Agabus adpressus Aubé, 1837 Agabus adustus 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, 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 (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 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 (Linnaeus, 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
Further reading Hilsenhoff, W.L. (1986) Life history strategies of some Nearctic Agabini (Coleoptera, Dytiscidae). Entomologica Basiliensia 11: 385-390. Larson D.J. (1989). Revision of North American Agabus Leach (Coleoptera: Dytiscidae): introduction, key to species groups, and classification of the ambiguus-, tristis- and arcticus-groups. The Canadian Entomologist 121: 861-919. Larson D.J. (1991). Revision of North American Agabus Leach (Coleoptera: Dytiscidae): elongatus-, zetterstedti-, and confinis-groups. The Canadian Entomologist 123: 1239-1317. Larson D.J. (1994). Revision of North American Agabus Leach (Coleoptera: Dytiscidae): lutosus-, obsoletus-, and fuscipennis-groups. The Canadian Entomologist 126: 135-181. Larson D.J. (1996). Revision of North American Agabus Leach (Coleoptera: Dytiscidae): the opacus-group. The Canadian Entomologist 128: 613-665. Larson D.J. (1997). Revision of North American Agabus Leach (Coleoptera: Dytiscidae): the seriatus-group. The Canadian Entomologist 129: 105-149. Larson D.J., Alarie Y., Roughley R.E. (2000) Predaceous diving beetles (Coleoptera: Dytiscidae) of the Nearctic Region, with emphasis on the fauna of Canada and Alaska. Ottawa: NRC Research Press. . Larson, D.J. & Nilsson, A.N. (1985) The Holarctic species of Agabus (sensu lato) Leach (Coleoptera: Dystiscidae). The Canadian Entomologist 117: 119-130. Larson D.J. & Wolfe R.W. (1998). Revision of North American Agabus (Coleoptera: Dytiscidae): the semivittatus-group. The Canadian Entomologist 130: 27-54. Nilsson, Anders N. (1982). A key to the identification of the known third-stage larvae of the Fennoscandian species of the genus Agabus (Coleoptera: Dytiscidae). Entomologica Scandinavica 13 (3): 333-338. Nilsson, Anders N. (1986) Life cycle and habitats of the northern European Agabini (Coleoptera: Dytiscidae). Entomologica Basiliensia 11: 391-417, 1986. Nilsson, Anders N. (1987) A key to the first instar larvae of Fennoscandian Agabus Leach (Coleoptera, Dytiscidae). Fauna Norvegica, Series B 34 (2): 131-137. Nilsson, Anders N. (1992) A revision of Afrotropical Agabus Leach (Coleoptera, Dytiscidae), and the evolution of tropicoalpine super specialists. Systematic Entomology 17 (2), 155-179. Nilsson, Anders N. (2000) A new view on the generic classification of the Agabus-group of genera of the Agabini, aimed at solving the problem with a paraphyletic Agabus (Coleoptera: Dytiscidae). Koleopterologische Rundschau 70: 17–36.
External links
Genus Agabus Leach, 1817 (Coleoptera, Dytiscidae) (atlas of beetles of Russia)