Aquatic Insects of Michigan

by Ethan Bright, Museum of Zoology Insect Division and School of Natural Resources and Environment
University of Michigan

+ Species Lists
+ Identification/Keys

Aquatic Coleoptera of Michigan

Species with locations in Michigan are indicated in bold lettering; those species expected to occur are indicated in regular lettering and with the states/province where verified records are known.

Adephaga

Dytiscidae

Agabetes Crotch, 1873

Agabetes acuductus (Harris, 1828) - IN, ON, WI

Agabus Leach, 1817

Agabus aeruginosus Aubé, 1838
Agabus ambiguus
(Say), 1823 Colymbetes
Agabus antennatus Leech, 1939 - MN, ON, WI
Agabus anthracinus Mannerheim, 1852
Agabus bicolor
(Kirby), 1837 Colymbetes
Agabus bifarius
(Kirby), 1837 Colymbetes
Agabus canadensis Fall, 1922 - MN, ON, WI
Agabus confinis (Gyllenhal), 1808 Dytiscus
Agabus confusus (Blatchley, 1910), Rhantus - WI (MI? found south of WI)
Agabus discolor (Harris), 1828 Colymbetes
Agabus disintegratus (Crotch), 1873 Gaurodytes - record in UMMZ-Insect Division
Agabus erichsoni Gemminger and Harold, 1868
Agabus falli (Zimmermann), 1934 - IN, MN, ON, WI
Agabus flavovittatus Larson and Wolfe, 1998 - IL, IN, OH, ON (expect in s. MI)
Agabus fuscipennis (Paykull), 1798 Dytiscus - ON (boreal)
Agabus gagates Aubé, 1838 - WI, MI? - check Fery and Nilsson 1993
Agabus immaturus Larson, 1991
Agabus inscriptus
(Crotch), 1873 Gaurodytes
Agabus larsoni Fery and Nilsson, 1993 - ON
Agabus leptapsis (LeConte), 1878 Gaurodytes - ON, WI
Agabus obtusatus (Say), 1823 Colymbetes - IN, OH, ON
Agabus opacus Aubé, 1837
Agabus phaeopterus
(Kirby), 1837 Colymbetes
Agabus punctatus
Melsheimer, 1844
Agabus punctulatus Aubé, 1838 - IL, IN, MN, ON, WI
Agabus semipunctatus (Kirby), 1837 Colymbetes
Agabus semivittatus LeConte, 1852 -record in UMMZ-Insect Division
Agabus seriatus (Say), 1823 Colymbetes
Agabus subfuscatus
Sharp, 1882
Agabus thomsoni
(Sahlberg), 1871 Gaurodytes
Agabus wasastjernae
(Sahlberg), 1824 Dytiscus

Acilius Leach, 1817

Acilius athabascae Larson, 1975 - MN, boreal north (may occur in Isle Royale NP, nw UP)
Acilius fraternus (Harris, 1828), Dytiscus
Acilius mediatus (Say), 1823 Dytiscus
Acilius semisulcatus Aubé, 1838
Acilius sylvanus Hilsenhoff, 1975

Bidessonotus Régimbart, 1895

Bidessonotus inconspicuus (LeConte), 1855, Hydroporus - record in UMMZ-Insect Division
Bidessonotus pulicarius (Aubé), 1838 Hydroporus - IN, ON

Celina Aubé, 1837

Celina hubbelli Young, 1979

Colymbetes Clairville, 1806

Colymbetes exaratus LeConte, 1862 - IL, MN, WI (western Great Lakes)
Colymbetes paykulli Erichson, 1837
Colymbetes sculptilis
Harris, 1829

Copelatus Erichson, 1832

Copelatus chevrolati Aubé, 1838
Copelatus glyphicus
(Say), 1823

Coptotomus Say, 1834

Coptotomus longulus LeConte, 1852
Coptotomus loticus Hilsenhoff, 1980 - IL, IN, ON, WI

Cybister Curtis, 1827

Cybister fimbriolatus (Say), 1823 Dytiscus - IN, MN, OH, ON, WI - record in UMMZ-Insect Division

Desmopachria Babington, 1841

Desmopachria convexa (Aubé), 1838, Hydroporus

Dytiscus Linnaeus, 1758

Dytiscus alaskanus Balfour-Browne, 1944 - MN, ON, WI
Dytiscus carolinus Aubé, 1838
Dytiscus circumcinctus Ahrens, 1811
Dytiscus cordieri Aubé, 1838
Dytiscus dauricus Gebler, 1832
Dytiscus fasciventris Say, 1824
Dytiscus harrisii Kirby, 1837
Dytiscus hybridus Aubé, 1838
Dytiscus verticalis Say, 1823

Graphoderus Dejean, 1833

Graphoderus fasciocollis (Harris, 1828), Dytiscus
Graphoderus liberus (Say, 1825), Dytiscus

Graphoderus manitobensis Wallis, 1933 - WI (expect in western UP)
Graphoderus occidentalis
Horn, 1883 - MN, ON, WI (expect in western UP)
Graphoderus perplexus Sharp, 1882

Heterosternuta Strand, 1935

Heterosternuta pulcher (LeConte, 1855) - OH, ON, MN
Heterosternuta wickhami (Zaitzev), 1907 Hydroporus - record in UMMZ-Insect Division

Hydaticus Leach, 1817

Hydaticus aruspex Clark, 1864
Hydaticus piceus LeConte, 1863

Hydrocolus (=Hydroporus oblitus-group Fall, 1923) Roughley and Larson, in Larson et al. 2000

Hydrocolus paugus (Fall), 1923, Hydroporus
Hydrocolus persimilis (Crotch), 1873, Hydroporus
Hydrocolus rybyae (Larson), 1975 Hydroporus - ON, WI (boreal)
Hydrocolus stagnalis (Gemminger and Harold), 1868) Hydroporus

Hydroporus Clairville, 1806

Hydroporus americanus Aubé, 1838
Hydroporus appalachius Sherman, 1913 - MN, ON
Hydroporus badiellus Fall, 1923
Hydroporus brevicornis
Fall, 1917
Hydroporus columbianus
Fall, 1923
Hydroporus dentellus
Fall, 1917
Hydroporus despectus Sharp, 1882 - record in UMMZ-Insect Division
Hydroporus dichrous Melsheimer, 1844
Hydroporus fuscipennis Schaum, 1868 - ON, WI (boreal)
Hydroporus gossei Larson and Roughley, 2000
Hydroporus larsoni Nilsson, 1984 - MN, ON, WI (boreal)
Hydroporus melsheimeri Fall, 1917
Hydroporus morio
Aubé, 1838
Hydroporus niger
Say, 1823
Hydroporus notabilis
LeConte, 1850
Hydroporus obscurus
Sturm, 1835
Hydroporus puberulus LeConte, 1850 - ON, WI (boreal)
Hydroporus rectus Fall, 1923
Hydroporus rufilabris
Sharp, 1882
Hydroporus rufinasus
Mannerheim, 1852
Hydrporus signatus
Mannerheim, 1853
Hydroporus striola
Gyllenhal, 1827
Hydroporus tartaricus LeConte, 1850 - record in UMMZ-Insect Division
Hydroporus tenebrosus LeConte, 1850
Hydroporus tristis
(Paykull), 1798 Dytiscus

Hydrovatus Motschulsky, 1853

Hydrovatus pustulatus (Melsheimer), 1844 Hygrotus

Hygrotus Stephens, 1828

Hygrotus acaroides (LeConte), 1855 Hydroporus - IL, IN, MN, OH, WI
Hygrotus compar (Fall), 1919 Coelambus
Hygrotus dissimilis
Gemminger and Harold, 1868
Hygrotus falli
(Wallis), 1924 Coelambus
Hygrotus farctus
(LeConte), 1855 Hydroporus
Hygrotus impressopunctatus
(Schaller, 1783), Dytiscus
Hygrotus laccophilinus (LeConte), 1878 Hydroporus
Hygrotus marklini
(Gyllenhal), 1813 Hyphydrus
Hygrotus nubilus (LeConte), 1855 Hydroporus
Hygrotus patruelis (LeConte), 1855 Hydroporus - record in UMMZ-Insect Division
Hygrotus picatus (Kirby), 1837 Hydroporus
Hygrotus punctilineatus
(Fall, 1919) - questionable record in UMMZ-Insect Division (check)
Hygrotus sayi
Balfour-Browne, 1944
Hygrotus sellatus
(LeConte), 1866 Hydroporus
Hygrotus suturalis (LeConte), 1850 Hydroporus - type specimen from Eagle Harbor, MI
Hygrotus sylvanus (Fall), 1917 Coelambus - record in UMMz-Insect Division
Hygrotus turbidus (LeConte), 1855 Hydroporus

Ilybius Erichson, 1832

Ilybius angustior (Gyllenhal), 1808 Dytiscus
Ilybius biguttulus
(Germar), 1824 Dytiscus
Ilybius confusus
Aubé, 1838
Ilybius discendens
Sharp, 1882
Ilybius fraterculus
LeConte, 1862
Ilybius ignarus
(LeConte), 1862 Colymbetes
Ilybius incarinatus
Zimmermann, 1928
Ilybius oblitus
Sharp, 1882
Ilybius picipes (Kirby), 1837 Colymbetes - IL, MN, ON, WI - should be in the UP, WI records near border
Ilybius pleuriticus LeConte, 1850
Ilybius subaeneus Erichson, 1837 - record in UMMZ-Insect Division

Laccophilus Leach, 1817

Laccophilus biguttatus Kirby, 1837
Laccophilus fasciatus Aubé, 1838 - record per Hilsenhoff 1992
Laccophilus maculosus Say, 1823
Laccophilus proximus
Say, 1823
Laccophilus undatus Aubé, 1838 - IL, IN, OH, ON, WI - see Zimmerman 1970 if in MI

Laccornis Gozis, 1914

Laccornis conoideus (LeConte), 1850 Hydroporus
Laccornis deltoides
(Fall), 1923, Agaporus
Laccornis latens
(Fall), 1937Agaporus

Liodessus Guignot, 1939

Liodessus affinis (Say), 1823 Hydroporus
Liodessus cantralli
(Young), 1953 Bidessus
Liodessus flavicollis
(LeConte), 1855 Hydroporus
Liodessus fuscatus
(Crotch), 1873 Hydroporus
Liodessus noviaffinis Miller, 1998 - IN
Liodessus obscurellus (LeConte, 1852), Hydroporus - IN, MN, WI

Lioporeus Guignot, 1950

Lioporeus triangularis (Fall, 1917) - MI? check collection, and Wolfe 1983; OH, WI

Matus Aubé, 1836

Matus bicarinatus (Say), 1823 Colymbetes
Matus ovatus
Leech, 1941

Neoscutopterus Balfour-Browne, 1943

Neoscutopterus angustus (LeConte), 1850 Agabus
Neoscutopterus hornii
(Crotch), 1873 Scutopterus

Nebrioporus Régimbart, 1906

Nebrioporus rotundatus (LeConte), 1863 Hydroporus

Neoporus Guignot, 1931

Neoporus carolinus (Fall), 1917 Hydroporus - ON
Neoporus clypealis
(Sharp), 1882 Hydroporus
Neoporus dimidiatus (Gemminger and Harold, 1868), Hydroporus - ON
Neoporus mellitus (LeConte), 1855 Hydroporus
Neoporus spurius
(LeConte), 1855 Hydroporus
Neoporus superioris (Balfour-Browne), 1944 Hydroporus - MN, ON, WI
Neoporus tennetum (Wolfe), 1984 Hydroporus
Neoporus undulatus (Say), 1823 Hydroporus - IL, IN, MN, OH, ON, WI - record in UMMZ-Insect Division as Hydroporus consimilis
Neoporus vitiosus (LeConte), 1855 Hydroporus
Neoporus vittatus (LeConte), 1855 Hydroporus - IL, IN, ON, MN, WI

Oreodytes Seidlitz, 1887

Oreodytes scitulus (LeConte), 1855 Hydroporus - MN, ON, WI (boreal, expect in western UP)

Rhantus Dejean, 1833

Rhantus binotatus (Harris), 1828 Colymbetes
Rhantus consimilis
Motschoulsky, 1859
Rhantus gutticollis (Say), 1834 Colymbetes - WI (maybe extreme western UP)
Rhantus sericans Sharp, 1882 - MN, ON, WI
Rhantus sinuatus (LeConte), 1862 Colymbetes
Rhantus suturellus
(Harris), 1828 Colymbetes
Rhantus wallisi
Hatch, 1953

Sanfilippodytes Franciscolo, 1979

Sanfilippodytes pseudovilis (Young), 1953 Hydroporus

Stictotarsus Zimmermann, 1919

Stictotarsus griseostriatus (DeGeer), 1774, Dytiscus

Thermonectus Dejean, 1837

Thermonectus basilaris (Harris, 1829), Dytiscus - IN, ON, WI

Uvarus Guignot, 1939

Uvarus granarius (Aubé), 1838 Hydroporus - MN, ON, WI
Uvarus falli (Young), 1940 Bidessus - ON
Uvarus lacustrus (Say), 1823 Hydroporus - record in UMMZ-Insect Division

Gyrinidae

Dineutus MacLeay, 1825

Dineutus assimilis Kirby, 1837 - WI
Dineutus discolor
Aubé, 1838 - WI
Dineutus emarginatus Say, 1825
Dineutus hornii Roberts, 1895
Dineutus nigrior Roberts, 1895

Gyrinus Geoffroy, 1762

Gyrinus aeneolus LeConte, 1868
Gyrinus aeratus Stephens, 1835 - ON, NY (expect in UP, n. LP)
Gyrinus affinis Aubé, 1838
Gyrinus analis Say, 1825
Gyrinus aquiris
LeConte, 1868
Gyrinus bifarius
Fall, 1922
Gyrinus borealis Aubé, 1838
Gyrinus conifinis
LeConte, 1868
Gyrinus dichrous
LeConte, 1868
Gyrinus fraterunus
Couper, 1865 - IN
Gyrinus gehringi
Chamberlain, 1929
Gyrinus gibber
LeConte, 1868
Gyrinus impressicollis Kirby, 1837
Gyrinus latilimbus
Fall, 1922
Gyrinus lecontei
Fall, 1922
Gyrinus maculiventris
LeConte, 1868
Gyrinus marginellus
Fall, 1922
Gyrinus minutus
Fabricius, 1798
Gyrinus pectoralis LeConte, 1868
Gyrinus pernitidus
LeConte, 1868 - IL, NY, WI
Gyrinus piceolus Blatchely, 1910 - IN
Gyrinus picipes Aubé, 1838 - ON (expect in w. UP, Isle Royale)
Gyrinus pugionis Fall, 1922
Gyrinus sayi
Aubé, 1838
Gyrinus ventralis Kirby, 1837
Gyrinus wallisi Fall, 1922 - MN, ON
Gyrinus woodruffi Fall, 1922

Haliplidae

Brychius Thomson, 1859

Brychius hungerfordi Spangler

Haliplus Latreille, 1802

Haliplius apostolicus Wallis, 1913 - WI
Haliplus blanchardi Roberts, 1913
Haliplus borealis LeConte, 1850 - IL, IN, WI
Haliplus canadensis Wallis, 1933
Haliplus connexus Matheson, 1912
Haliplus cribrarius LeConte, 1850
Haliplus fasciatus Aubé, 1838
Haliplus immaculicollis Harris. 1828
Haliplus leopardus Roberts, 1913 - IL, IN, OH, WI (Downie and Arnett 1994)
Haliplus longulus LeConte, 1850
Haliplus nitens LeConte, 1850 - ON, WI?
Haliplus ohioensis - IL, IN, OH
Haliplus pantherinus Aubé, 1838
Haliplus ruficollis DeGeer
Haliplus subguttatus Crotch, 1873
Haliplus tortilipennis Brigham and Sanderson, 1972 - IL (Cook Co.), WI
Haliplus triopsis Say, 1823
Haliplus variomaculatus - IL (Vermillion Co.)

Peltodytes Regimbart, 1872

Peltodytes edentulus (LeConte), 1863
Peltodytes duodecimpunctatus (Say), 1823 - IL, IN, WI
Peltodytes lengi Roberts - Downie and Arnett
Peltodytes muticus (LeConte) - Downie and Arnett
Peltodytes pedunculatus Blatchley - Downie and Arnett
Peltodytes sexmaculatus Roberts - Downie and Arnett
Peltodytes tortulosus Roberts - Downie and Arnett

Noteridae

Hydrocanthus Say, 1832

Hydrocanthus iricolor Say, 1832

Pronoterus Sharp, 1882

Pronoterus semipunctatus (LeConte), 1878 Suphis - Downie and Arnett

Suphisellus Crotch, 1873

Suphisellus puncticollis (Crotch), 1873 Noterus - Downie and Arnett
Suphisellus bicolor (Say), 1831 Noterus- IL, IN, OH

Polyphaga

Chrysomelidae

Disonycha Chevrolat, 1844 (not all species in genus are aquatic, and I have tried to omit terrestrial species; on Amaranthaceae)

Disonycha admirabilis Blatchley, 1924 - IN, OH
Disonycha alternata (Illiger), 1807 Haltica - Downie and Arnett (1996)
Disonycha caroliniana (Fabricius), 1775 Crioceris - IL
Disonycha latifrons Schaeffer, 1919 - Downie and Arnett (1996) (maybe found in wetlands on goldenrod)
Disonycha pensylvanica (Illiger), 1807 Haltica - IL, IN, OH (widespread)
Disonycha procera Casey, 1884 - Downie and Arnett (1996)
Disonycha uniguttata (Say), 1824 Altica - Downie and Arnett (1996)

Donaciella Rietter, 1920

Donaciella pubicollis (Suffrian), 1872 Donacia - Downie and Arnett (1996)

Donacia Fabricius, 1775

Donacia assimilis Lacordaire 1845 (Donacia) - IL
Donacia biimpressa Melsheimer 1847 (Donacia) - Downie and Arnett (1996)
Donacia caerulea Olivier 1795 (Donacia) - Downie and Arnett (1996)
Donacia cazieri Marx 1957 (Donacia) - ON (northern, expect in Isle Royale)
Donacia cincticornis Newman 1838 (Donacia) - Downie and Arnett (1996)
Donacia confluenta Say 1827 (Donacia) - Downie and Arnett (1996)
Donacia cuprea Kirby 1837 (Donacia) - Downie and Arnett (1996)
Donacia distincta Leconte 1851 (Donacia) - Downie and Arnett (1996)
Donacia fulgens Leconte 1851 (Donacia) - Downie and Arnett (1996)
Donacia hirticollis Kirby 1837 (Donacia) - Downie and Arnett (1996)
Donacia liebecki Schaeffer 1919 (Donacia) - Downie and Arnett (1996)
Donacia limonia Schaeffer 1925 (Donacia) - IN, ON
Donacia magnifica Leconte 1851 (Donacia) - ON, MN (widespread)
Donacia megacornis Blatchley 1910 (Donacia) - Downie and Arnett (1996)
Donacia palmata Olivier 1795 (Donacia) - Downie and Arnett (1996)
Donacia parvidens Schaeffer 1919 (Donacia) - Downie and Arnett (1996)
Donacia piscatrix Lacordaire 1845 (Donacia) - Downie and Arnett (1996)
Donacia porosicollis Lacordaire 1845 (Donacia) - MN, ON (expect in Isle Royale, western UP)
Donacia proxima Kirby 1837 (Donacia) - Downie and Arnett (1996)
Donacia pubescens Leconte 1868 (Donacia) - Downie and Arnett (1996)
Donacia rufescens Lacordaire 1845 (Donacia) - IN, OH, ON (widespread east)
Donacia rugosa Leconte 1878 (Donacia) - Downie and Arnett (1996)
Donacia subtilis Kunze 1818 (Donacia) - Downie and Arnett (1996)
Donacia texana Crotch 1873 (Donacia) - Downie and Arnett (1996)
Donacia tuberculifrons Schaeffer 1919 (Donacia) - Downie and Arnett (1996)

Hydrothassa Thomson, 1866 (Ranunculus and marsh vegetation)

Hydrothassa boreella Schaeffer, 1928 - widespread, expect northern Michigan
Hydrothassa obliquata (Leconte), 1866 Prasocuris - IN, OH
Hydrothassa ovalis (Blatchley), 1910 Prasocuris - Downie and Arnett (1996)
Hydrothassa vittata (Olivier), 1808 Helodes - IN, OH (widespread)

Neohaemonia Szekessy 1941

Neohaemonia flagellata Askevold, 1988 - IL, IN, ON, MN
Neohaemonia melsheimeri Lacordaire 1845 (Haemonia) - Downie and Arnett (1996)
Neohaemonia minnesotensis Askevold 1988 (Neohaemonia) - Downie and Arnett (1996)
Neohaemonia nigricornis (Kirby), 1837 Haemonia - MN, ON, WI (widespread)

Prasocuris Latreille, 1802

Prasocuris phellandrii (Linnaeus), 1758 Chrysomela - IN, OH, ON

Pyrrhalta Joannis, 1866 (not all species are aquatic)

Pyrrhalta (Tricholochomaea) alni (Fall), 1924 Galerucella - Downie and Arnett (1996) on alder
Pyrrhalta (Tricholochomaea) decora (Say), 1824 Galleruca - Downie and Arnett (1996) on willow
Pyrrhalta (Neogalerucalla) quebecensis (Brown), 1938 Galerucella - Downie and Arnett (1996)
Pyrrhalta (Tricholochomaea) ribicola (Brown), 1938 Galerucella - Downie and Arnett (1996)
Pyrrhalta (Tricholochomaea) spiraeae (Fall), 1924 Galerucella - Downie and Arnett (1996)
Pyrrhalta (Tricholochomaea) tuberculata (Say), 1824 Galleruca - Downie and Arnett (1996), on willow

Curculionidae

Auleutes Dietz, 1896 (not all species are aquatic/semiaquatic)

Auleutes asper (LeConte), 1876 Coeliodes - IN
Auleutes atar (LeConte), 1876 Coeliodes - IN
Auleutes epilobii (Paykull), 1800 Curculio - Downie and Arnett (1996)
Auleutes marionis Fall, 1913 - IN
Auleutes nebulosus (LeConte), 1876 Coeliodes - Downie and Arnett (1996)
Auleutes subfasciatus Dietz, 1896 - Downie and Arnett (1996)
Auleutes tenuipes (LeConte), 1876 Coeliodes - IN, ON

Bagous Germar, 1817

Bagous americanus LeConte, 1876 - Downie and Arnett (1996)
Bagous atratus Blatchley, 1916 - Downie and Arnett (1996)
Bagous bituberosa LeConte, 1876 - IN (widespread)
Bagous blanchardi Blatchley, 1916 - Downie and Arnett (1996)
Bagous calvifrons LeConte, 1876 - Downie and Arnett (1996)
Bagous magister LeConte, 1876 - Downie and Arnett (1996)
Bagous mamillatus Say, 1831 - Downie and Arnett (1996)
Bagous nebulosus LeConte, 1876 - Downie and Arnett (1996)
Bagous obliquus LeConte, 1876 - Downie and Arnett (1996)
Bagous planatus LeConte, 1876 - Downie and Arnett (1996)
Bagous puritanus Blatchley, 1916 - IN, IL
Bagous pusillus LeConte, 1876 - IL, IN
Bagous restrictus LeConte, 1876 - IL, IN, MN, OH, WI
Bagous tanneri O'Brien, 1979 - Downie and Arnett (1996)
Bagous transversus LeConte, 1876 - Downie and Arnett (1996)

Brachybamus Germar, 1836

Brachybamus electus Germar, 1836 - IN (widespread, on Sagittaria)

Euhrychiopsis Dietz, 1896

Euhrychiopsis lecontei (Dietz), 1896 Phytobius - Downie and Arnett (1996)

Lissorhopterus LeConte, 1876

Lissorhopterus buchanani Kuschel, 1952 - Downie and Arnett (1996)
Lissorhopterus lacustris Kuschel, 1952 - Downie and Arnett (1996)
Lissorhopterus oryzophilus Kuschel, 1952 - Downie and Arnett (1996)

Listronotus Jekel, 1865 (may not be aquatic)

Listronotus appendiculatus (Boheman), 1842 Listroderes
Listronotus caudatus (Say), 1824 Rhynchaenus
Listronotus delumbis (Gyllenhal), 1834 Listroderes
Listronotus dorsalis (Dietz), 1889 Macrops - IN, IL, MN
Listronotus echinatus (Dietz), 1889 Macrops
Listronotus echinodori O'Brien, 1977 - MN, OH
Listronotus frontalis LeConte, 1876 - IN, IL, MN, OH, ON, WI
Listronotus grypidiodes (Dietz), 1889 Macrops - IN, MN
Listronotus humilus (Gyllenhal), 1834 Listroderes
Listronotus laramiensis (Angell), 1893 Macrops
Listronotus maculicollis (Kirby), 1837 Macrops
Listronotus montanus (Dietz), 1889 Macrops - IN, IL, MN
Listronotus sparsus (Say), 1831 Listroderes
Listronotus squamiger (Say), 1831 Listroderes
Listronotus tuberosus LeConte, 1876
Listronotus vitticollis (Kirby), 1837 Macrops - ON, south

Lixellus LeConte, 1876

Lixellus filiformis LeConte, 1876 - IN, MN
Lixellus hubbardi
(LeConte)
, 1876 Anchodemus
Lixellus lutulentus (Boheman), 1843 Erirhinus

Lixus Fabricius, 1801

Lixus caudifer LeConte, 1876 - IL, IN
Lixus concavus
Say, 1831
Lixus rubellus
Randall, 1838
Lixus musculus Say, 1831
Lixus parcus LeConte, 1876 - IL, IN, ON
Lixus punctinasus LeConte, 1876 - IL, OH, WI
Lixus sobrinus Casey - IL, IN, WI

Notiodes Schönherr, 1838

Notiodes ovalis (LeConte), 1876 Endalus - IN, OH, ON, MN
Notiodes cribricollis (LeConte), 1876 Endalus - widespread
Notiodes limatulus
(Gyllenhal), 1836 Notiophilus - Downie and Arnett (1996)

Onychylis LeConte, 1876

Onychylis longulus LeConte, 1876 - Downie and Arnett (1996)
Onychylis nigrirostris (Boheman), 1843 Notiodes - Downie and Arnett (1996)

Phytobius Schönherr, 1833

Phytobius leucogaster (Marsham), 1802 Curculio - Downie and Arnett (1996) introduced

Rhinoncus Schönherr, 1825

Rhinoncus asperulus (Dietz), 1896 Pelenomus - Downie and Arnett (1996)
Rhinoncus fuliginosus (Dietz), 1896 Mecopeltus - IN (widespread)
Rhinoncus gracilipes (Dietz), 1896 Pelenomus - widespread
Rhinoncus squamosus (LeConte), 1876 Pelenomus - Downie and Arnett (1996)
Rhinoncus sulcicollis (Fåhraeus), 1843 Phytobius - Downie and Arnett (1996)

Stenopelmus Schönherr, 1836

Stenopelmus rufinasus Gyllenhal, 1836 - IN (widespread)

Tanyspherus Germar, 1817 - on Lemna sp.

Tanyspherus lemnae (Fabricius) - Downie and Arnett (1996)
Tanyspherus ater Blatchley - Downie and Arnett (1996)

Dryopidae

Helichus Erichson, 1847

Helichus basalis LeConte, 1852 - IN, OH
Helichus fastigiatus (Say, 1824)
Helichus lithophilus
(Germar, 1824)
Helichus striatus
LeConte, 1852

Pelonomus Erichson, 1847

Pelenomus obscurus LeConte, 1852 - IL, IN, ON (widespread central/east)

Elmidae

Ancyronyx Erichson 1847

Ancyronyx variegatus (Germar), 1824 Macronychus (MI record, author pers. obs., Rouge River, Wayne Co.)

Dubiraphia Sanderson, 1954

Dubiraphia bivittata (LeConte) 1852, Elmis
Dubiraphia minima Hilsenhoff, 1973 - IN, OH, WI
Dubiraphia quadrinotata (Say), 1825 Elmis
Dubiraphia robusta Hilsenhoff, 1973 - WI (expect in w. UP)
Dubiraphia vittata Melsheimer, 1844- IL, IN, OH, WI

Macronychus Müller, 1806

Macronychus glabratus Say, 1825

Microcylloepus Hinton, 1935

Microcylloepus pusillus (LeConte), 1852 Stenelmis - ON, WI (expect in w. UP)

Optioservus Sanderson, 1954

Optioservus fastiditus (LeConte), 1850 Limnius
Optioservus trivittatus (Brown), 1930 Limnius

Stenelmis Dufour, 1835

Stenelmis antennalis Sanderson, 1938 - MN, WI
Stenelmis bicarinata LeConte, 1852
Stenelmis cheryl Brown, 1987
Stenelmis crenata (Say), 1824 Elmis
Stenelmis decorata Sanderson, 1938 - (Schmude 1992)
Stenelmis douglasensis Sanderson, 1938
Stenelmis fuscata Blatchley, 1925 - WI
Stenelmis grossa Sanderson, 1938 - (Schmude 1992)
Stenelmis mera Sanderson, 1938 - (Schmude 1992)
Stenelmis musgravei Sanderson, 1938
Stenelmis quadrimaculata Horn, 1870
Stenelmis sandersoni Musgrave, 1940
Stenelmis sexlineata Sanderson, 1938 - (Schmude 1992)

Hydraenidae

Gymnochthebius d'Orchymont, 1943

Gymnochthebius nitidus (LeConte), 1850 Ochthebius - Downie and Arnett 1996

Hydraena Kugelann, 1794

Hydraena angulicollis Notman, 1921 - Downie and Arnett 1996
Hydraena pennsylvanica Kiessenwetter, 1849 - Downie and Arnett 1996

Ochthebius Leach, 1815

Ochthebius benefossu LeConte, 1878 - IN, ON
Ochthebius cribricollis LeConte, 1850 - Downie and Arnett 1996
Ochthebius kaszabi Janssens, 1967 - ON (may be found in Isle Royale)

Hydrophilidae

Anacaena Thomson, 1859

Anacaena lutescens Stephens, 1829 - (as A. limbata (Fabricius), see Hilsenhoff 1995), specimens in UMMZ-Insect Collection

Berosus Leach, 1817

Berosus aculeatus LeConte, 1855 - Downie and Arnett 1996
Berosus fraternus LeConte, 1855 - Downie and Arnett 1996
Berosus hatchi Miller, 1965 - ON, WI
Berosus infuscatus LeConte, 1855 - Charity Island (44.030°N, 83.437°W), specimens in UMMZ-Insect Collection
Berosus ordinatus LeConte - IN, MN (and eastward)
Berosus pantherinus LeConte, 1855 - IL, IN, OH, ON, WI
Berosus peregrinus (Herbst), 1797 Hydrophilus - specimens in UMMZ-Insect Collection
Berosus striatus (Say), 1825 Hydrophilus - specimens in UMMZ-Insect Collection
Berosus stylifer Horn, 1873 - WI

Chaetarthria Stephens, 1833

Chaetarthria atra (LeConte), 1863 Cyllidium - IL, IN
Chaetarthria pallida (LeConte), 1861 Cyllidium - Cheboygan Co., specimen in UMMZ-Insect Collection

Crenitis Bedel, 1881

Crenitis digesta (LeConte), 1855 Hydrobius - ON, WI

Cymbiodyta Bedel, 1881

Cymbiodyta acuminata Fall, 1924 - specimen in UMMZ-Insect Collection
Cymbiodyta blanchardi Horn, 1890 - specimens in UMMZ-Insect Collection
Cymbiodyta chamberlaini Smetana, 1974 - specimens in UMMZ-Insect Collection
Cymbiodyta minima Notman, 1919 - specimens in UMMZ-Insect Collection
Cymbiodyta semistriata (Zimmermann), 1869 Philhydrus - specimens in UMMZ-Insect Collection
Cymbiodyta toddi Spangler, 1966 - Downie and Arnett 1996
Cymbiodyta vindicata Fall, 1924 - specimens in UMMZ-Insect Collection

Dibolocelus Regimbart, 1901

Dibolocelus ovatus (Gemminger and Harold) - IN, ON, WI

Enochrus Thomson, 1859

Enochrus blatchleyi (Fall), 1924 Philhydrus - Downie and Arnett 1996
Enochrus cinctus (Say), 1824 Hydrophilus - IN, OH, WI
Enochrus collinus (Fall), Philydrus - WI
Enochrus consors
LeConte, 1863 Philydrus - IN, MN
Enochrus consortus Green, 1946 - Downie and Arnett 1996
Enochrus diffusus (LeConte), 1855 Philhydrus - IL, ON, WI, MI*
Enochrus hamiltoni (Horn), 1890 Philydrus - Downie and Arnett 1996
Enochrus hamiltoni horni Leach, 1950 - WI
Enochrus ochraceus (Melsheimer), 1846 Philhydrus - IN, ON, WI, MI*
Enochrus perplexus (LeConte), 1855 Philhydrus - IN, ON, MN, WI
Enochrus pygmaeus (Fabricius), 1792 Hydrophilus - IL, IN, OH, ON, WI
Enochrus sayi Gunderson, 1977 - Downie and Arnett 1996

Helocombus Horn, 1890

Helocombus bifidus (LeConte), 1855 Philhydrus - Downie and Arnett 1996

Helophorus Illiger, 1801

Helophorus (Rhopalelophorus) angusticollis d'Orchymont - Downie and Arnett 1996
Helophorus (Rhopalelophorus) artus Smetana - IL
Helophorus (Rhopalelophorus) furius Smetana - ON, WI
Helophorus (Rhopalelophorus) inflectus McCorkle - Downie and Arnett 1996
Helophorus (Rhopalelophorus) lacustris
LeConte - Downie and Arnett 1996
Helophorus (Rhopalelophorus) latipenis - WI (syn. or ssp.?)
Helophorus (Rhopalelophorus) linearis LeConte - IL, OH, ON, WI
Helophorus (Rhopalelophorus) lineatus Say - Downie and Arnett 1996
Helophorus (Rhopalelophorus) marginicollis
Smetana - Downie and Arnett 1996
Helophorus (Rhopalelophorus) nitiduloides
d'Orchymont - Downie and Arnett 1996
Helophorus (Rhopalelophorus) nitidulus
LeConte - Downie and Arnett 1996
Helophorus (Rhopalelophorus) oblongus
LeConte - Downie and Arnett 1996
Helophorus (Rhopalelophorus) orchymonti Smetana - ON, WI
Helophorus (Rhopalelophorus) orientalis Motschulsky - Downie and Arnett 1996
Helophorus (Rhopalelophorus) sempervarians
Angus - Downie and Arnett 1996
Helophorus (Cephelophorus) tuberculatus
Gyllenhal - Downie and Arnett 1996

Hydrobius Leach, 1815

Hydrobius fuscipes (Linnaeus), 1758 Dytiscus - Downie and Arnett 1996
Hydrobius melaenum (Germar), 1824 Sphaeridium - Downie and Arnett 1996
Hydrobius tumidus LeConte, 1855 - IN

Hydrochus Leach, 1817

Hydrochus brevitarsis Knisch - Downie and Arnett 1996
Hydrochus currani Brown - ON, WI
Hydrochus granulatus Blatchley - IN, ON, WI
Hydrochus excavatum LeConte - IN
Hydrochus inaequalis LeConte - IN
Hydrochus neosquamifer Smetana - ON, WI
Hydrochus pseudosquamifer Miller - IN, ON, WI
Hydrochus rufipes Melsheimer - IL, IN, OH, WI
Hydrochus rugosus Mulsant - IN
Hydrochus scabratus Mulsant - Downie and Arnett 1996
Hydrochus squamifer LeConte - IN, ON, WI
Hydrochus subcupreous Randall - IN, WI
Hydrophilus Geoffroy, 1762
Hydrophilus triangularis Say, 1823 - Downie and Arnett 1996
Hydrochara Berthold 1827
Hydrochara leechi Smetana, 1980 - IL, OH, WI
Hydrochara obtusata (Say), 1823 Hydrophilus - Downie and Arnett 1996
Hydrochara simula Hilsenhoff and Tracy - Downie and Arnett 1996
Hydrochara soror Smetana, 1980 - Downie and Arnett 1996
Hydrochara spangleri Smetana, 1980 - IL, IN, OH, WI

Laccobius Erichson, 1837

Laccobius agilis Randall, 1838 (Hydrophilus) - IN, ON, WI
Laccobius carri d'Orchymont, 1942 (Laccobius) - ON
Laccobius cinereus columbianus Miller, 1965 - Downie and Arnett 1996
Laccobius fuscipunctatus - WI
Laccobius minutoides d'Orchymont, 1942 - ON, WI
Laccobius reflexipennis Cheary, 1971 - ON, WI
Laccobius spangleri Cheary, 1971 (Laccobius) - WI
Laccobius teneralis Cheary, 1971 (Laccobius) - ON
Laccobius truncatipenis Miller, 1965 (Laccobius) - ON, WI (expect in w. UP)

Paracymus Thomson, 1867

Paracymus confluens Wooldridge, 1966 - Downie and Arnett 1996
Paracymus confusus Wooldridge, 1966 - Downie and Arnett 1996
Paracymus despectus (LeConte), 1863 Hydrobius - Downie and Arnett 1996
Paracymus subcupreus (Say), 1825 Hydrobius - IL, IN, OH

Sperchopsis LeConte, 1862

Sperchopsis tessellatus Ziegler, 1844 - Downie and Arnett 1996

Tropisternus Solier, 1834

Tropisternus blatchleyi d'Orchymont, 1922 - IL, IN, OH
Tropisternus columbianus Brown, 1931 - OH, ON, WI
Tropisternus ellipticus LeConte, 1855 Hydrophilus - WI
Tropisternus glaber (Herbst), 1797 Hydrophilus - MN, ON, WI
Tropisternus lateralis (Fabricius), 1775 Hydrophilus - Downie and Arnett 1996
Tropisternus mixtus (LeConte), 1855 Hydrophilus - IN, ON, WI
Tropisternus natator d'Orchymont, 1938 - IL, IN, OH, ON, WI

Sphaeridiinae (terrestrial: not included)

Lampyridae

Photinus LaPorte, 1833

Photinus ardens LeConte, 1851 - Downie and Arnett (1996)
Photinus consimilis Green (complex), 1956 - Downie and Arnett (1996)
Photinus obscurellus LeConte, 1851 - Downie and Arnett (1996)

Pyractomena LeConte, 1850

Pyractomena dispersa Green, 1958 - Downie and Arnett (1996)
Pyractomena linearis LeConte, 1851 - Downie and Arnett (1996)
Pyractomena lucifera Melsheimer, 1846 - Downie and Arnett (1996)
Pyractomena sinuata Green, 1958 - IL, MN, WI

Pyropyga Motschulsky, 1852

Pyropyga decipiens (Harris), 1836 Lampyris - IN, ON
Pyropyga nigricans (Say), 1823 Lampyris - IL, IN, ON

Psephenidae

Ectopria LeConte, 1853

Ectopria leechi Brigham, 1981
Ectopria nervosa
(Melsheimer, 1845), Eubria

Psephenus Haldeman 1853

Psephenus herricki (De Kay, 1844), Fluvicola (described as isopod)

Ptilodactylidae

Odontonyx Guérin-Meneville, 1843

Odontonyx trivittis (Germar), 1824 Dasytes - IN?, PA

Scirtidae

Cyphon Paykull, 1799

Cyphon collaris (Guérin-Meneville), 1843 Elodes- IN, ON
Cyphon obscurus (Guérin-Meneville), 1843 Elodes - IN, OH, ON
Cyphon padi (Linnaeus), 1758 Chrysomela - IN, ON
Cyphon ruficollis (Say), 1825 Lampyris - IN (widespread east and central)
Cyphon variabilis (Thunberg), 1785 Cantharis - Downie and Arnett (1996)

Elodes Latreille, 1796

Elodes fuscipennis Guérin-Meneville 1843 - IN
Elodes maculicollis (Horn), 1880 Helodes - ON
Elodes pulchella Guérin-Meneville, 1843 - IN
Elodes thoracica Guérin-Meneville, 1843 - IN, ON

Microcara Thomson 1859

Microcara explanata LeConte, 1866 Helodes - Downie and Arnett (1996), shores of Lake Michigan

Prionocyphon Redtenbacher, 1858

Prionocyphon discoideus (Say), 1825 Cyphon - Downie and Arnett (1996)

Scirtes Illiger, 1807

Scirtes orbiculatus (Fabricius), 1801 Cyphon - IN, OH
Scirtes tibialis (Guérin-Meneville), 1843 Scirtes - IN, ON

Staphylinidae

Bledius Leach, 1819

Bledius analis LeConte, 1863 - Downie and Arnett (1996)
Bledius annularis LeConte, 1863 - IN (widespread)
Bledius armatus Say - UMMZ Insect Collection (syn. of what name?)
Bledius assimilis Casey, 1889 - Downie and Arnett (1996)
Bledius confusus LeConte, 1877 - Downie and Arnett (1996)
Bledius emarginatus (Say), 1834 Oxytelus - Downie and Arnett (1996)
Bledius fumatus LeConte, 1863 - Downie and Arnett (1996)
Bledius gravidus Casey, 1889 - Downie and Arnett (1996)
Bledius ineptus Casey, 1889 - Downie and Arnett (1996)
Bledius nitidicollis LeConte, 1863 - IL, OH (and northwest)
Bledius omega Herman, 1983 - Downie and Arnett (1996)
Bledius pallipennis (Say), 1823 Oxytelus - IL, OH
Bledius rotundicollis LeConte, 1877 - IL, MN, WI
Bledius ruficornis LeConte, 1863 - Downie and Arnett (1996)
Bledius semiferrugineus LeConte, 1863 - UMMZ Insect Collection
Bledius sinuatus LeConte, 1877 - IL, ON
Bledius suturalis LeConte, 1863 - ON (widespread)
Bledius tarandus Herman, 1970 - ON, WI
Bledius tau LeConte, 1877 - Downie and Arnett (1996)
Bledius trugidus Casey, 1889 - Downie and Arnett (1996)
Bledius viriosus Herman, 1983 - ON, WI

Carpelimus Leach, 1819

Carpelimus bilineatus (Stephen), 1832 Carpalimnus [sic] - IN
Carpelimus delicatus (Casey), 1889 Trogophloeus - Downie and Arnett (1996)
Carpelimus fallax (Casey), 1889 Trogophloeus - Downie and Arnett (1996)
Carpelimus morio (Erichson), 1840 Trogophloeus - Downie and Arnett (1996)
Carpelimus quadripunctatus (Say), 1834 Stenus - IN, OH

Psephidonus Gistel, 1856 (=Geodromicus Redtenbacher)

Psephidonus brunneous (Say), 1823 Anthophagus - UMMZ Insect Division
Psephidonus strictus (Fauvel), 1889 - Downie and Arnett (1996)
Psephidonus ovipennis (LeConte), 1878 Geodromicus - widespread, disjunct (New York, Utah)

Stenus Latreille, 1796

Stenus advenus (Casey), 1884 Areus - Downie and Arnett (1996)
Stenus alacer Casey, 1884 - IL, IN
Stenus argus Gravenhorst, 1806 - IN
Stenus angustus Casey, 1884- Downie and Arnett (1996)
Stenus annularis Erichson, 1840 - Downie and Arnett (1996)
Stenus brivioi Puthz, 1972 - Downie and Arnett (1996)
Stenus callosus Erichson, 1840 - ? (no locality in Downie and Arnett 1996)
Stenus canaliculatus Gyllenhal, 1827 - Downie and Arnett (1996)
Stenus capucinus Boheman, 1858 - Downie and Arnett (1996)
Stenus carinicollis Casey, 1884- Downie and Arnett (1996)
Stenus caseyi Puthz, 1971 - Downie and Arnett (1996)
Stenus colonus Erichson, 1840 - Downie and Arnett (1996)
Stenus comma LeConte, 1863 - Downie and Arnett (1996)
Stenus colon Say, 1834 - Downie and Arnett (1996)
Stenus croceatus (Casey), 1884 - Downie and Arnett (1996)
Stenus curtus Casey, 1884- Downie and Arnett (1996)
Stenus dissentiens (Casey), 1884 - Downie and Arnett (1996)
Stenus egenulus Puthz - Downie and Arnett (1996)
Stenus egenus Erichson, 1840 - IN (widespread)
Stenus erythropus Melsheimer, 1844 - Downie and Arnett (1996)
Stenus femoratus Say, 1834 - Downie and Arnett (1996)
Stenus flavicornis Erichson, 1840 - Downie and Arnett (1996)
Stenus fulvoguttatus Notman, 1920 - Downie and Arnett (1996)
Stenus gratiosus Casey, 1884 - Downie and Arnett (1996)
Stenus immarginatus Maklin, 1853 - widespread east
Stenus insperatus Puthz, 1972 - Downie and Arnett (1996)
Stenus intrusus Casey, 1884 - Downie and Arnett (1996)
Stenus juno Fabricius, 1801 - Downie and Arnett (1996)
Stenus laccophilus Casey, 1884 - UMMZ insect collection
Stenus mammops Casey, 1884- Downie and Arnett (1996)
Stenus morio Gravenhorst, 1806 - Downie and Arnett (1996)
Stenus nanus Stephen, 1832 - Downie and Arnett (1996)
Stenus neglectus Casey, 1884- Downie and Arnett (1996)
Stenus parallelopipedus Casey, 1884- Downie and Arnett (1996)
Stenus pauperculus Casey, 1884- Downie and Arnett (1996)
Stenus pubescens Stephens, 1832 - Downie and Arnett (1996) (native of Palearctic?)
Stenus pudicus Casey, 1884 - Downie and Arnett (1996)
Stenus pumilio Erichson, 1839 - Downie and Arnett (1996)
Stenus punctatus Erichson, 1840 - Downie and Arnett (1996)
Stenus pusillimus Puthz, 1971 - Downie and Arnett (1996)
Stenus reconditus (Casey), 1884 - Downie and Arnett (1996)
Stenus rossi Sanderson, 1957 - Downie and Arnett (1996)
Stenus scrupens Casey, 1884- Downie and Arnett (1996)
Stenus semicolon LeConte, 1863 - Downie and Arnett (1996)
Stenus strangulatus Casey, 1884 - Downie and Arnett (1996)
Stenus scabiosus Casey, 1884- Downie and Arnett (1996)
Stenus sibiricus Sahlberg, 1880 - Downie and Arnett (1996)
Stenus stygicus Say, 1834 - Downie and Arnett (1996)
Stenus tenuis Casey, 1884 - Downie and Arnett (1996)
Stenus varipes Casey, 1884- Downie and Arnett (1996)
Stenus vicinus Casey, 1884- Downie and Arnett (1996)
Stenus vinnulus Casey, 1884- Downie and Arnett (1996)

Thinobius Kiesenwetter, 1844

Thinobius brachypterus LeConte, 1877 - Downie and Arnett (1996)
Thinobius fimbriatus LeConte, 1877 - Downie and Arnett (1996)

Page created: April 29, 2003 (EB)
Past last reviewed: January 21, 2004 (EB)