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Dytiscidae (predaceous diving beetle)
Taxonomy
Dytiscides was named by Leach (1815). It is extant. Its type is Dytiscus.
It was corrected as Dytiscidae by LeConte (1861), Crowson (1981), Carpenter (1992), Lawrence and Newton (1995), Wappler (2003), Bouchard et al. (2011), Yang et al. (2019) and Cai et al. (2022).
It was assigned to Coleoptera by LeConte (1861); to Caraboidea by Crowson (1981); to Dytiscoidea by Yang et al. (2019); and to Adephaga by Carpenter (1992), Lawrence and Newton (1995), Wappler (2003), Bouchard et al. (2011) and Cai et al. (2022).
It was corrected as Dytiscidae by LeConte (1861), Crowson (1981), Carpenter (1992), Lawrence and Newton (1995), Wappler (2003), Bouchard et al. (2011), Yang et al. (2019) and Cai et al. (2022).
It was assigned to Coleoptera by LeConte (1861); to Caraboidea by Crowson (1981); to Dytiscoidea by Yang et al. (2019); and to Adephaga by Carpenter (1992), Lawrence and Newton (1995), Wappler (2003), Bouchard et al. (2011) and Cai et al. (2022).
Synonyms
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Synonymy list
Year | Name and author |
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1856 | Necticus palustris Aymard p. 234 |
1861 | Dytiscidae LeConte p. 38 |
1981 | Dytiscidae Crowson p. 694 |
1992 | Dytiscidae Carpenter |
1995 | Dytiscidae Lawrence and Newton, Jr. |
2003 | Dytiscidae Wappler |
2011 | Dytiscidae Bouchard et al. p. 162 |
2019 | Dytiscidae Yang et al. p. 2 |
2022 | Dytiscidae Cai et al. |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Fm. Dytiscidae Leach 1815 [predaceous diving beetle]
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Subfm. Agabinae Thomson 1867
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Tr. Agabini Thomson 1867
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G. Agabus Leach 1817
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Subg. Agabus (Acatodes) Thomson 1859
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Agabus (Acatodes) anthracinus Mannerheim 1852
Agabus (Acatodes) arcticus Paykull 1798
Agabus (Acatodes) congener Thunberg 1794
Agabus (Acatodes) infuscatus Aubé 1838
Agabus (Acatodes) sturmii Gyllenhal 1808
Subg. Agabus (Agabus) Leach 1817
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Agabus (Agabus) bifarius Kirby 1837
Agabus (Agabus) clavicornis Sharp 1882
Subg. Agabus (Gaurodytes) Thomson 1859
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Agabus (Gaurodytes) affinis Paykull 1798
Agabus (Gaurodytes) bipustulatus Linnaeus 1767
Agabus (Gaurodytes) nebulosus Forster 1771
†Agabus charon Wickham 1912
†Agabus congeneroides Lomnicki 1894
†Agabus corticeus Lomnicki 1894
†Agabus florissantensis Wickham 1913
†Agabus hochi Statz 1939
†Agabus latissimus Ponomarenko 2019
†Agabus lithax Říha 1960
†Agabus niedzwiedzkii Lomnicki 1894
†Agabus parvulus Lomnicki 1894
†Agabus perditus Scudder 1900
†Agabus praelugens Wickham 1917
†Agabus rathbuni Scudder 1900
†Agabus reductus von Heyden and von Heyden 1866
†Agabus reitteri Lomnicki 1894
†Agabus savagei Wickham 1917
†Agabus ungeri Heer 1847
Invalid names: Necticus Hope 1838 [synonym]
G. Ilybius Erichson 1832
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Ilybius apicalis Sharp 1873
†Ilybius boryslavicus Lomnicki 1894
Ilybius fenestratus Fabricius 1781
†Ilybius gratshevi Ponomarenko 2019
Ilybius quadrimaculatus Aubé 1838
Ilybius subaeneus Erichson 1837
Ilybius vittiger Gyllenhal 1827
Subfm. Colymbetinae Erichson 1837
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Tr. Colymbetini Erichson 1837
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G. Colymbetes Clairville 1806
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†Colymbetes aemulus Heer 1862
Colymbetes fuscus Linnaeus 1758
†Colymbetes miocaenicus Říha 1974
Colymbetes paykulli Erichson 1837
Invalid names: Cymatopterus Dejean 1833 [synonym]
G. Rhantus Dejean 1833
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Rhantus exsoletus Forster 1771
†Rhantus praesuturellus Lomnicki 1894
†Rhantus villumi Prokin et al. 2024
Subfm. Copelatinae Van den Branden 1885
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G. Copelatus Erichson 1832
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†Copelatus aphroditae Balke 2003
†Copelatus convexus Förster 1891
†Copelatus fossilis Říha 1974
†Copelatus ponomarenkoi Říha 1974
†Copelatus predaveterus Miller 2003
†Copelatus stavropolitanus Říha 1974
Invalid names: Copelatini Van den Branden 1885 [empty]
G. †Cretodytes Ponomarenko 1977
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†Cretodytes incertus Prokin et al. 2013
†Cretodytes latipes Ponomarenko 1977
Subfm. Cybisterinae Sharp 1880
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G. Cybister Curtis 1827
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†Cybister agassizi Heer 1862
†Cybister atavus Heer 1862
†Cybister fractus Říha 1974
†Cybister imperfectus Říha 1974
†Cybister mancus Říha 1974
†Cybister rotundatus Říha 1974
G. Megadytes Sharp 1882
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Subg. Megadytes (Paramegadytes) Trémouilles and Bachmann 1980
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Megadytes (Paramegadytes) glaucus Brullé 1837
†Megadytes nicoleti Heer 1862
Subfm. Dytiscinae Leach 1815
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Tr. Aciliini Thomson 1867
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G. Acilius Leach 1817
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†Acilius florissantensis Wickham 1909
†Acilius oeningensis Heer 1847
†Acilius praesulcatus Lomnicki 1894
Tr. †Ambarticini Yang et al. 2019
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Tr. Dytiscini Leach 1815
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G. Dytiscus Linnaeus 1758
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†Dytiscus avunculus von Heyden 1862
Dytiscus lapponicus Gyllenhal 1808
†Dytiscus latahensis Wickham 1931
†Dytiscus lavateri Heer 1847
Dytiscus marginalis Linnaeus 1758
Dytiscus marginicollis LeConte 1845
†Dytiscus miocenicus Lewis and Gundersen 1987
†Dytiscus zersii Sordelli 1882
Tr. Eretini Crotch 1873
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G. Eretes Laporte 1833
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†Eretes antiquus Oustalet 1870
Invalid names: Eunectes Erichson 1832 [replaced]
Tr. Hydaticini Sharp 1880
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G. Hydaticus Leach 1817
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Subg. Hydaticus (Hydaticus) Leach 1817
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Hydaticus (Hydaticus) aruspex Clark 1864
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Invalid names: Hydaticus laevipennis Thomson 1867 [synonym]
†Hydaticus zschokkeanus Heer 1847
Subfm. Hydroporinae Aubé 1836
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Tr. Bidessini Sharp 1880
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G. Bidessus Sharp 1882
Invalid names: Bidessus laminarum Wickham 1914 [nomen dubium], Hydroporus sedimentorum Wickham 1914 [nomen dubium]
Tr. Hydroporini Aubé 1836
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Subtr. Deronectina Galewski 1994
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G. Deronectes Sharp 1882
G. Oreodytes Seidlitz 1887
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Oreodytes alpinus Paykull 1798
Oreodytes borealis Gyllenhal 1826
†Oreodytes cryptolineatus Statz 1939
G. Hydroporus Clairville 1806
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Hydroporus acutangulus Thomson 1856
†Hydroporus carstengroehni Balke et al. 2010
†Hydroporus clessini Lomnicki 1894
Hydroporus discretus Fairmaire and Brisout 1859
†Hydroporus edenianus Lesne 1926
†Hydroporus inanimatus Scudder 1900
†Hydroporus inundatus Scudder 1900
†Hydroporus lapideus Říha 1974
Hydroporus lapponum Gyllenhal 1808
Hydroporus morio Aubé 1838
†Hydroporus multipunctatus Statz 1939
Hydroporus palustris Linnaeus 1761
Hydroporus planus Fabricius 1781
†Hydroporus pleistocenicus Lomnicki 1894
†Hydroporus praedorsalis Lomnicki 1894
†Hydroporus praenigrita Lomnicki 1894
†Hydroporus praenivalis Lomnicki 1894
†Hydroporus sandbergeri Lomnicki 1894
†Hydroporus sectus Scudder 1900
Hydroporus striola Gyllenhal 1826
†Hydroporus subarcticus Lomnicki 1894
†Hydroporus trimaculatus Theobald 1937
G. Nebrioporus Régimbart 1906
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†Nebrioporus benzeli Heer 1862
Invalid names: Potamonectes Zimmerman 1921 [synonym]
Tr. Hygrotini Portevin 1929
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G. Clemnius Villastrigo et al. 2017
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G. Hygrotus Stevens 1828
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Subg. Hygrotus (Coelambus) Thomson 1860
Subg. Hygrotus (Hygrotus) Stephens 1828
Subg. Hygrotus (Leptolambus) Villastrigo et al. 2017
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Hygrotus (Leptolambus) impressopunctatus Schaller 1783
Hygrotus (Leptolambus) novemlineatus Stephens 1829
Hygrotus (Leptolambus) parallellogrammus Ahrens 1812
†Hygrotus cribrarius Scudder 1900
†Hygrotus derelictus Scudder 1900
†Hygrotus disjectus Scudder 1900
†Hygrotus dzieduszyckii Lomnicki 1894
†Hygrotus ganglbaueri Lomnicki 1894
†Hygrotus infernalis Scudder 1900
†Hygrotus latefasciatus Lomnicki 1894
†Hygrotus miocenus Wickham 1912
†Hygrotus niedzwiedzkii Lomnicki 1894
†Hygrotus ozokeriticus Lomnicki 1894
†Hygrotus picipoides Lomnicki 1894
Tr. †Schistomerini Palmer 1957
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Subfm. Laccophilinae Gistel 1848
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Tr. Laccophilini Gistel 1848
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G. Laccophilus Leach 1817
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†Laccophilus corystes Zhang 1989
†Laccophilus pusulatus Zhang 1989
†Laccophilus strigatus von Schlechtendal 1894
Invalid names: Palaeogyrinus von Schlechtendal 1894 [synonym]
Invalid names: Palaeogyrininae von Schlechtendal 1894 [synonym]
Subfm. †Liadytiscinae Prokin and Ren 2010
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Tr. †Liadytiscini Prokin and Ren 2010
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G. †Liadytiscus Prokin and Ren 2010
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†Liadytiscus cretaceus Prokin and Ren 2010
†Liadytiscus latus Prokin and Ren 2010
†Liadytiscus longitibialis Prokin and Ren 2010
Tr. †Mesoderini Prokin et al. 2013
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G. †Mesoderus Prokin and Ren 2010
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†Mesoderus magnus Prokin and Ren 2010
†Mesoderus ovatus Prokin et al. 2013
†Mesoderus punctatus Prokin et al. 2013
†Mesoderus ventralis Prokin and Ren 2010
G. †Palaeodytes Ponomarenko 1987
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†Palaeodytes baissiensis Prokin et al. 2013
†Palaeodytes gutta Ponomarenko 1987
†Palaeodytes incompleta Ponomarenko et al. 2005
†Palaeodytes sibiricus Ponomarenko 1987
Invalid names: Aubehydrinae Guignot 1942 [empty], Necticus palustris Aymard 1856 [nomen nudum]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: c = class, p = phylum | |||||
References: Bush and Bambach 2015, Kiessling 2004 |
Age range
Maximum range based only on fossils: base of the Toarcian to the top of the Rancholabrean or 182.70000 to 0.01200 Ma
Minimum age of oldest fossil (stem group age): 174.1 Ma
Minimum age of oldest fossil (stem group age): 174.1 Ma
Collections (178 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Toarcian | Russian Federation (Irkutsk) | Angaragabus jurassicus (122950 152595) | |
Callovian - Oxfordian | Kazakhstan (Chimkent) | Palaeodytes gutta (105971) | |
Late/Upper Berriasian | United Kingdom (England) | Palaeodytes incompleta (103833) | |
Late/Upper Barremian | China (Nei Mongol) | Mesoderus punctatus, Mesoderus ovatus, Mesodytes rhantoides (125655) | |
Late/Upper Barremian | China (Liaoning) | Liadroporus elegans (111716) Liadytiscus cretaceus, Liadytiscus longitibialis, Liadytiscus latus, Liadroporus elegans, Mesoderus magnus, Mesoderus ventralis, Sinoporus lineatus (111710) Liadyxianus kirejtshuki (122554) | |
Barremian | Russian Federation (Chita) | Cretodytes incertus (105968) | |
Aptian | Russian Federation (Buryatia) | Palaeodytes baissiensis (118216) | |
Late/Upper Aptian | Australia (Victoria) | Dytiscidae indet. 2, Dytiscidae indet. 3, Dytiscidae indet. 1 (77192) | |
Early/Lower Cenomanian | Myanmar | Ambarticus myanmaricus (198811) | |
Turonian | Kazakhstan | Cretodytes latipes (103274) | |
Tiffanian | Canada (Alberta) | Dytiscidae indet. (119816) | |
Ypresian | Denmark | Dytiscidae indet. (152156) Rhantus villumi (228242) | |
Bridgerian | USA (Utah) | Laccophilus sp. (121147) | |
MP 13 | Germany (Eifel) | Dytiscidae indet. (135641 138912) | |
Priabonian | United Kingdom (England) | Hydroporinae indet. (21976) Hygrotus sp., Dytiscidae indet., Hydroporinae indet., Agabus latissimus, Ilybius gratshevi (123959) Laccophilus sp., Ilybius gratshevi (123960) | |
Priabonian | Russian Federation (Kaliningrad) | Copelatus aphroditae (123770) Derovatellus rostratus, Hydroporus carstengroehni, Hydroporinae indet. 2, Coptotomus balticus (110735) Hydroporinae indet. 1 (120816) Hydrotrupes prometheus (234648) Japanolaccophilus beatificus, Coptotomus balticus (145846) | |
Priabonian | Germany | Hydroporini indet. (123769) | |
Priabonian | France | Dytiscus sp. (113709) | |
Priabonian | Poland | Glessaria rostrata (109625) | |
Priabonian | Germany (Halle) | Electruphilus wendeli (207248) | |
Chadronian | USA (Colorado) | Agabus florissantensis (124624) Coelambus miocenus, Agabus charon, Acilius florissantensis, Miodytiscus hirtipes (106381) Coelambus miocenus, Agabus florissantensis (113749) Coelambus miocenus, Bidessus laminarum, Hydroporus sedimentorum, Agabus rathbuni (106384) | |
Early/Lower Oligocene | France | Dytiscus lavateri (122408) Escheria convexa (121473) | |
Early/Lower Oligocene | France (Auvergne Region) | Necticus palustris (31767) | |
MP 23 | France | Procoelambus macrocephalus, Hydroporus trimaculatus (122535) | |
Rupelian | France (Auvergne) | Eunectes antiquus (127630) | |
MP 30 | Germany | Agabus reductus (123945) Dytiscidae indet. (115802) | |
MP 30 | Germany (Nordrhein-Westfalen) | Palaeogyrinus strigatus (142560) | |
Chattian | Germany (North Rhine-Westphalia) | Oreodytes cryptolineatus, Hydroporus macularis, Hydroporus multipunctatus, Agabus hochi, Agabus latus, Palaeogyrinus strigatus, Dytiscidae indet. (122010) | |
Early/Lower Miocene | Mexico | Copelatus sp. (21977) | |
Burdigalian | China (Shandong) | Laccophilus pusulatus, Laccophilus corystes (128552) | |
Burdigalian - Langhian | Dominican Republic | Copelatus predaveterus (122982) | |
Hemingfordian | USA (California) | Calicovatellus petrodytes (152044) Schistomerus californense (106431 123022 123023 123025 123026 123027 123028 123029 123030 123031 123032 123033 123034 123035 123036 123037 123039 123040 123041 123042 123043) | |
MN 3 | Czech Republic | Cybister sp., Cybister rotundatus (105508) | |
MN 4 | Czech Republic | Agabus lithax (105501) | |
Langhian | USA (Idaho) | Dytiscus miocenicus (130391) | |
Langhian | USA (Washington) | Dytiscus latahensis (140652) | |
MN 5 | Germany (Baden-Württemberg) | Dytiscidae indet. (109058) | |
Middle Miocene | Russian Federation | Colymbetes sp., Copelatus spp., Hydroporus lapideus, Methles caucasicus, Copelatus stavropolitanus, Copelatus ponomarenkoi, Copelatus fossilis, Colymbetes miocaenicus, Graphoderus mirabilis, Cybister fractus (105571) Copelatus spp. (138756) Cybister rotundatus, Cybister imperfectus, Cybister mancus (152089) | |
Middle Miocene | Australia (New South Wales) | Dytiscidae indet. (224044) | |
Sarmatian | Germany (Baden-Württemberg) | Dytiscus lavateri, Cybister agassizi, Cybister atavus, Cybister nicoleti, Hydaticus areolatus, Colymbetes aemulus, Hydroporus benzeli (117252) Dytiscus lavateri, Dytiscus oeningensis (115304) Dytiscus zschokkeanus (122210) Hydroporus antiquus (122868) | |
Sarmatian | Switzerland | Cybister nicoleti (153996) | |
Sarmatian | Croatia | Colymbetes ungeri (117246) | |
Late/Upper Miocene | Poland | Hydroporus sp., Acilius sp., Hydaticus laevipennis (167589) | |
Late/Upper Miocene | Germany (Baden-Württemberg) | Dytiscus avunculus (152952) | |
Late/Upper Miocene | Russian Federation | Agabus sp. (153434) Agabus sp., Hydroporus sp. (113713) | |
Pliocene | Japan | Dytiscidae indet. (165745) Ilybius sp., Dytiscidae indet. (165743) | |
Piacenzian | Japan | Agabus sp., Ilybius sp., Dytiscidae indet. (165738) Ilybius sp. (165742) | |
Gelasian | Greenland | Agabini indet. (160146) Agabus bifarius (160163) Agabus spp., Agabus affinis, Dytiscidae indet. (160108) Agabus spp., Colymbetes sp., Hydroporus spp., Agabinae indet., Oreodytes spp., Ilybius sp., Hygrotus sp., Agabini indet., Hydroporus morio, Hydroporus acutangulus, Hydroporus striola, Hydroporus oblitus, Oreodytes alpinus, Agabus affinis, Agabus clavicornis, Agabus bifarius, Agabus anthracinus, Ilybius vittiger, Dytiscidae indet. (160109) Agabus spp., Hydroporus spp., Agabus bifarius (160145) Agabus spp., Hydroporus spp., Ilybius sp., Hydroporus morio, Oreodytes alpinus, Agabus bifarius, Dytiscidae indet. (160153) Agabus spp., Hydroporus spp., Ilybius sp., Oreodytes alpinus, Agabus affinis, Agabus clavicornis, Hydroporinae indet. (160143) Hydroporus morio (160162) Hydroporus sp., Oreodytes alpinus (160147) Hydroporus spp., Ilybius sp., Agabini indet., Hydroporus morio, Oreodytes sanmarkii, Agabus affinis, Agabus anthracinus, Dytiscidae indet., Hydroporinae indet. (160144) Ilybius sp. (160151) | |
Early/Lower Pleistocene | Japan | Agabus sp. (165711) | |
Early/Lower Pleistocene | Russian Federation | Agabus sp., Hydroporus sp. (163089) Agabus spp., Colymbetes paykulli (163069) | |
Pleistocene | Italy | Dytiscus zersii (224200) | |
Pleistocene - Holocene | Cuba (Matanzas) | Cybister sp. (152870) | |
Calabrian | Japan | Dytiscus sp., Agabus sp., Ilybius sp., Rhantus sp., Agabus optatus (160539) | |
Calabrian - Ionian | United Kingdom (Durham) | Hydroporus discretus (140489) | |
Chibanian | Japan | Agabus sp. (165706 165709) Dytiscus sp., Ilybius sp., Dytiscidae indet. (165700) Ilybius sp., Dytiscidae indet. (165708) Platambus stygius (165704 165705) | |
Chibanian | Russian Federation | Agabus sp. (163100) Hydroporus sp. (163097 163099) | |
Chibanian | Japan (Kumamoto) | Dytiscidae indet. (164901) | |
Middle Pleistocene | United Kingdom (Warwickshire) | Agabus sp. (169388) Graphoderus sp. (169390) Ilybius sp. (169391 169396) | |
Middle Pleistocene | Japan (Kumamoto) | Agabus sp. (165715 165716) | |
Middle Pleistocene | United Kingdom | Colymbetes sp. (168264 168268) Colymbetes sp., Agabus bipustulatus, Hygrotus decoratus, Potamonectes depressus (168270) Colymbetes sp., Ilybius sp. (168269) Hydroporus sp., Ilybius sp. (168265) Hygrotus decoratus (168267) Ilybius sp., Agabus bipustulatus, Potamonectes depressus, Cybister lateralimarginalis (168266) Potamonectes depressus (168272) | |
Rancholabrean | USA (California) | Dytiscus marginicollis (150336) | |
Late/Upper Pleistocene | Russian Federation | Agabus sp. (153443) Agabus sp., Hydroporus sp. (153446 173208 173216) Hydroporus sp. (173207) | |
Late/Upper Pleistocene | USA (Colorado) | Agabus infuscatus (169347 169350 169353) | |
Late/Upper Pleistocene | Japan | Dytiscus sp., Agabus sp., Ilybius sp., Ilybius apicalis, Dytiscidae indet. (166082) Ilybius sp. (165701) | |
Late/Upper Pleistocene | USA (Pennsylvania) | Colymbetes sp. (137208) | |
Late/Upper Pleistocene | Ukraine | Coelambus picipoides, Coelambus dzieduszyckii, Coelambus niedzwiedzkii, Coelambus ganglbaueri, Coelambus latefasciatus, Coelambus ozokeriticus, Hydroporus borealis, Hydroporus praedorsalis, Hydroporus lapponum, Hydroporus subarcticus, Hydroporus praenivalis, Hydroporus praenigrita, Hydroporus pleistocenicus, Hydroporus sandbergeri, Hydroporus clessini, Agabus congeneroides, Agabus corticeus, Agabus reitteri, Agabus parvulus, Agabus niedzwiedzkii, Ilybius boryslavicus, Rantus praesuturellus, Cymatopterus striatus, Cymatopterus dolabratus, Acilius praesulcatus, Dytiscus lapponicus (153476) | |
Late/Upper Pleistocene | Russian Federation (Astrakhan) | Agabus sp., Ilybius fenestratus, Graphoderus austriacus, Coelambus parallelogrammus, Hydroporinae indet. (125794) | |
Late/Upper Pleistocene | USA (Wisconsin) | Hydroporini indet. (169406) | |
Late/Upper Pleistocene | Canada (British Columbia) | Dytiscidae indet. (167673) | |
Late/Upper Pleistocene | Peru | Dytiscidae indet. (71346) | |
Late/Upper Pleistocene | Argentina (Buenos Aires) | Megadytes glaucus (184124) | |
Late/Upper Pleistocene | USA (Washington) | Colymbetes sp., Ilybius sp. (157092) Dytiscidae indet. (169366 169371 169372 169373 169375 169376 169377 169378) Dytiscus sp. (169379) Dytiscus sp., Agabus spp., Colymbetes sp., Oreodytes sp., Rhantus sp., Hygrotus sp., Ilybius quadrimaculatus (167662) | |
Late/Upper Pleistocene | Canada (Ontario) | Coelambus cribrarius, Hydroporus inundatus (152576) Coelambus derelictus, Coelambus disjectus, Hydroporus inanimatus, Hydroporus sectus, Agabus perditus (152577) Coelambus infernalis, Hydroporus sectus (152575) Potamonectes sp. (174229) | |
Late/Upper Pleistocene | United Kingdom (England) | Agabus sp., Colymbetes sp. (164920) Colymbetes sp. (164913 164917) Hydroporus sp., Rhantus sp. (164905) | |
Late/Upper Pleistocene | United Kingdom (Worcestershire) | Hydroporus spp., Ilybius sp., Rantus sp., Colymbetes paykulli, Hygrotus novemlineatus, Hygrotus impressopunctatus, Deronectes sp., Deronectes griseostriatus, Hydroporus arcticus, Hydroporus palustris, Hydroporus planus, Agabus congener, Agabus nebulosus, Agabus arcticus, Agabus sturmii, Agabus bipustulatus, Ilybius subaeneus, Rantus exsoletus, Colymbetes fuscus, Dytiscus marginalis (163070) | |
Late/Upper Pleistocene | USA (Illinois) | Agabus savagei, Agabus praelugens (164922) | |
Late/Upper Pleistocene | USA (Massachusetts) | Dytiscidae indet. (152284) | |
Tarantian | USA (Pennsylvania) | Colymbetes sp. (137204) Dytiscidae indet. (137201) Hydroporus sp., Dytiscidae indet. (137205 137206) |