Aquatic Insects of Michigan

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

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    Aquatic Coleoptera (Beetles) of Michigan


    NOTE: To reduce length, a number of family species lists will appear on separate pages. Each family will have their own separate reference sections for distribution and taxonomy, and numerous omissions and errors in citations will be corrected.

    Certain groups of aquatic beetles have been well surveyed in our state, and several systematic monographs have appeared for several important groups (e.g., Dytiscidae, Hydrophiloidea) that occur in our state. Still, the enormous number of Coleopteran species that may occur in our state means that to fashion completed species lists for all the families listed to the left will require additional work. Fortunately, researchers at Michigan State University - William Ruesink, Gary Parsons, and Robert Haack - are compiling such a list for Michigan.

    Genera are donoted in bold green; species denoted in bold blue have been recorded in Michigan; other species denoted in bold are likely to occur based on their known distribution. You can use the Find function in your web browser to locate families, genera, and species. Synonomous species (indented) are listed below the current valid species (denoted in bold) with its taxonomic status indicated.

    Adephaga Schellenberg, 1806

      DYTISCIDAE Leach (Predaceous Diving Beetles) (separate page)


      GYRINIDAE Latreille (Whirligig Beetles) (separate page)

      HALIPLIDAE Aubé (Crawling Water Beetles) (separate page)

      NOTERIDAE Thomson, 1860*: 34 (Burrowing Water Beetles)

      Photo of Hydrocanthus iricolor (Copyright © 2012 Tom Murray, used with permission)
      Copyright © 2012 Tom Murray
        Hydrocanthus Say, 1823*: 105
          Hydrocanthus (Hydrocanthus) iricolor Say, 1823*: 105 - UMMZ; Leng 1920*: 76; Young 1985*: 97; Downie and Arnett 1996*: 268
            (syn.) Hydrocanthus similator Zimmermann, 1928*: 165

        Pronoterus Sharp, 1882*: 263
          Pronoterus semipunctatus (LeConte, 1878*: 595 as Suphis) - LeConte 1878*: 595, Monroe; Young 1954*: 126; Downie and Arnett 1996*: 267

        Suphisellus Crotch, 1873*: 397
          Suphisellus bicolor (Say, 1831*: 33 as Noterus) - IL, IN, OH
            (nom.nud.) Hydroporus gibbulus Dejean, 1833*: 58
          Suphisellus puncticollis Crotch, 1873*: 397 - Young 1954*: 131; Young 1979*:418; Downie and Arnett 1996*: 267

          Crotch GR. 1873. Revision of the Dytiscidae of the United States. Transactions of the American Entomological Society 4: 383-424. VIEW.
          Dejean PFMA. 1833. Catalogue des coléoptères de la collection de M. le comte Dejean. Paris, 176 pp. VIEW.
          Downie NM, Arnett RH, Jr. 1996. The beetles of northeastern North America. Vol. 1. The Sandhill Crane Press, Gainesville, Florida. 880 pp.
          LeConte JL. 1878. Descriptions of new species, in Hubbard GH, Schwarz EA, The Coleoptera of Michigan. Proceedings of the American Philosophical Society 17: 593-626. VIEW.
          Leng CW. 1920. Catalogue of the Coleoptera of America north of Mexico. J.D. Sherman, Mount Vernon, N.Y. 470 pp. VIEW.
          Nilsson AN. 2005. Family Noteridae (Coleoptera, Adephaga), pp. 87-153 in Nilsson AN, Vondel BJ van (Eds.), Amphizoidae, Aspidytidae, Haliplidae, Noteridae and Paelobiidae (Coleoptera, Adephaga). World Catalogue of Insects 7: 1-171.
          Say T. 1823. Descriptions of insects of the families of Carabici and Hydrocanthari of Latreille, inhabiting North America. Transactions of the American Philosophical Society, New Series 2(1825)(1): 1-109. (PDF)
          Say T. 1830-1834. Description of new North American insects, and observations on some already described. New Harmony, Indiana: 81 pp (Reprinted in Transactions of the American Philosophical Society 4(1834): 409-470). VIEW.
          Sharp D. 1878. List of aquatic Coleoptera collected by M. Camille van Volxem in Portugal & Marocco. Annales de la Société Entomologique de Belgique 20(1877): 112-115.
          Thomson CG. 1860. Skandinaviens Coleoptera, synoptiskt bearbetade. Volume II. Lundbergska Boktryckeriet, Lund. 304 pp. VIEW.
          Young FN. 1954. The water beetles of Florida. University of Florida Studies, Biological Science Series 5: 1-238.
          Young FN. 1979. Water beetles of the genus Suphisellus Crotch in the Americas north of Colombia (Coleoptera: Noteridae). The Southwestern Naturalist 24(3): 409-429. JSTOR.
          Young FN. 1985. A key to the American species of Hydrocanthus Say, with descriptions of new taxa (Coleoptera: Noteridae). Proceedings of the Academy of Natural Sciences of Philadelphia 137(1): 90-98. JSTOR.
          Zimmermann A. 1928. Neuer Beitrag zur Kenntnis der Schwimmkäfer. Wiener Entomologische Zeitung 44: 165-187. PDF.

      CHRYSOMELIDAE Latreille (Leaf Beetles) (separate page)

      CURCULIONIDAE Latreille (True Weevils) (separate page)

      DRYOPIDAE Erichson, 1857 (Dryopid Beetles)

        Helichus Erichson, 1847
          Helichus basalis LeConte, 1852 - NMNH (web page database); see also Musgrave 1935:140-141
          Helichus fastigiatus (Say, 1824) - UMMZ (Washtenaw Co., Ann Arbor, 20-July-1901, Mus. Cat. 1634, det./ver. FNYoung)
          Helichus lithophilus (Germar, 1824*) - UMMZ (Washtenaw Co., Ann Arbor, 04-Aug-1916, det. H. Nelson 1973; Oakland Co., 04-July-1909, det. H. Nelson), NMNH (web page database); see also Musgrave 1935:140
          Helichus striatus LeConte, 1852 - UMMZ (Cheboygan Co., Cheboygan, 08-Jun-1927, Sherman Moore 1029, det. FNYoung; Livingston Co., ES George Reserve, 855b & 833a coll. IJCantrall & FNYoung), NMNH (web page database); see also Musgrave 1935:142-143

        Pelonomus Erichson, 1847
          Pelonomus obscurus LeConte, 1852 - IL, IN, ON (widespread central/east)

      ELMIDAE Curtis (Riffle Beetles) (separate page)


      HYDRAENIDAE Mulsant, 1844: 50 (Minute Moss Beetles)
      The information contained on this list is tentative, based on few observations of museum specimens (currently being assessed) and literature citations (Perkins 1980).

        Gymnochthebius d'Orchymont, 1943b: 38
          Gymnochthebius nitidus (LeConte, 1850*: 217 as Ochthebius) - Perkins 1980: 274-277; NMNH (web page database); holotype specimen from Eagle Harbor, Keweenaw County

        Hydraena Kugelann, 1794: 579
          Hydraena angulicollis Notman, 1921: 146 - Perkins 1980: 81-83, 443
          Hydraena pennsylvanica Kiessenwetter, 1849: 166 - Perkins 1980: 81, 96-98, 443; neootype from Bryant Road, Emmet County; record from Grand Ledge, Eaton Co. as H. atlantica (Perkins 1980)
            (syn.) Hydraena atlantica Perkins, 1980: 488

        Ochthebius Leach, 1815: 95
          Ochthebius (Asiobates) cribricollis LeConte, 1850: 217 - Perkins 1980: 386, 388-389, lectotype from Eagle Harbor, Keweenaw County
          Ochthebius (Ochtebius) kaszabi Janssens, 1967: 56 - MN, ON (may be found in Isle Royale) (Perkins 1980: 282, 325-328)
          Ochthebius (Ochtebius) lineatus LeConte, 1852: 211 - WI, western, but one record from northern WI, expect in w UP (Perkins 1980:314-318, 323)
            (syn.) Ochthebius milleri Hatch, 1965: 18


          Hatch MH. 1965. The beetles of the Pacific Northwest. Part IV: Macrodactyles, Palpicornes, and Heteromera. University of Washington Press, Seattle, 268 pages.
          Janssens E. 1967. 91. Hydraenidae. Ergebnisse der zoologischen Forschungen von Dr. Z. Kaszab in der Mongolei (Coleoptera). Reichenbachia 9(5): 53-58.
          Kugelann JG .1794. Verzeichniß der in einigen Gegenden Preußens bis jetzt entdeckten Käfer-Arten, nebst kurzen Nachrichten von denselben, pp. 513-582 in Schneider DH (ed.), Neuestes Magazin für die Liebhaber der Entomologie. Vol. I, part 5. D. H. Schneider, Stralsund.
          Kiesenwetter EAH, von. 1849. Monographische revision der Gattung Hydraena. Linnaea Entomologica 4: 156-190, 425-427.
          Leach WE. 1815. Entomology, pp. 57-172 in Edinburgh Encyclopedia, Volume 9(1) (Brewster, ed.). Edinburgh. (VIEW)
          LeConte JL. 1852. Descriptions of new Coleoptera from California. Annals of the Lyceum of Natural History of New York 5: 185-216.
          LeConte JL. 1850. General remarks upon the Coleoptera of Lake Superior, pp 201-242 in Agassiz L, LeConte JL, Lake Superior: Its physical character, vegetation, and animals, compared with those of other and similar regions. Gould, Kendall and Lincoln, Boston, 428 pp., illus.
          Mulsant ME. 1844. Histoire naturelle des coléoptères de France. Vol. 3. Palpicornes, Lyon. (PDF)
          Notman H. 1921. Some new genera and species of Coleoptera collected at Westfield, Chautauqua Co., N.Y. Journal of the New York Entomological Society 24: 146-147.
          Orchymont A, d'. 1943b. Faune du nord-est bresilien (recoltes du Dr. O. Schubart). Palpicornia. Mémoires du Musée royal d'histoire naturelle de Belgique, deuxieme serie, 28: 1-85.
          Perkins PD. 1980. Aquatic beetles of the family Hydraenidae in the Western Hemisphere: classification, biogeography and inferred phylogeny (Insecta: Coleoptera). Quaestiones Entomologicae 16: 3-554.

      LAMPYRIDAE Latreille, 1817 (Firefly Beetles)
      Several taxa of these fascinating beetles have larvae known to live in the air spaces of aquatic plants, or are associated with aquatic or semiaquatic plants in aquatic habitats. A number of species have larvae that are adapted to feed on aquatic snails, and perhaps annelids; some larvae of Asian species have tracheal gills that permit a truly aquatic existence. There are 6 species in 2 genera that have been recorded in Michigan, with another 3 species in 2 genera likely to be found based on their regional distribution. This list is based on information kindly provided by Dr. Jim Lloyd (pers.comm. 2003), and records listed in Downie and Arnett (1996).

        Photinus LaPorte, 1833
          Photinus ardens LeConte, 1851 - Downie and Arnett 1996; Lloyd pers.comm. (Marquette, Delta, Chippewa, Charlevoix, Cheboygan, Roscommon, Huron, St. Clair, Washtenaw)
          Photinus consimilis Green (complex), 1956 - Downie and Arnett 1996; Lloyd pers.comm., as consimilis-complex (Schoolcraft, Chippewa, Oceana, Livingston, Oakland, St. Clair)
          Photinus obscurellus LeConte, 1851 - Downie and Arnett 1996; Lloyd pers.comm (Houghton, Iron, Dickinson, Marquette, Mackinaw, Chippewa, Berrien, St. Joseph, Washtenaw, Wayne, St. Clair)

        Pyractomena LeConte, 1850
          Pyractomena angulata (Say, 1825) Lampyris (orig.) - e. USA, Canada (Lloyd, pers.comm.; Luk et al. 2011: 68, 72)
          Pyractomena borealis (Randall, 18258 Lampyris (orig.) - OH, e. USA, Canada (Archangelsky and Branham 1998; Lloyd, pers.comm.; Luk et al. 2011: 69, 73)
          Pyractomena dispersa Green, 1958 - Downie and Arnett 1996; Lloyd pers. comm. (Kent, Washtenaw, Wayne)
          Pyractomena linearis LeConte, 1851 - Downie and Arnett 1996; Lloyd pers.comm. (Marquette, Dickinson, Mackinac, Livingston, Washtenaw)
          Pyractomena lucifera Melsheimer, 1846 - Downie and Arnett 1996; Lloyd pers.comm. (Midland, Clinton, Livingston, Washtenaw, Oakland)
          Pyractomena sinuata Green, 1958 - IL, MN, WI (Lloyd pers.comm.)

        Pyropyga Motschulsky, 1852

          Pyropyga decipiens (Harris, 1836) Lampyris (orig.) - Lloyd pers.comm. (Keweenaw, widespread in LP)
          Pyropyga nigricans (Say, 1823) Lampyris (orig.) - Lloyd 1999; Lloyd pers.comm. (widespread in state)

      LUTROCHIDAE Kasap & Crowson, 1975 (Long-toed or Travertine Beetles) (Polyphaga)
      Lutrochus luteus adult - from Brown 1972

      These beetles share the same habitats as that of dryopid and elmid riffle beetles (Dryopidae, Elmidae) and water-pennies (Psephenidae), although there is a preference for calcarious deposits from mineral springs (Brown 1972) (or possibly areas with high rates of instream photosynthetic activity, when calcium carbonate precipitates). There is one species that reaches our area. In Wisconsin, larvae were found in rocks, and adults were found in various lotic habitats of mixed substrate, with ovipositing adults occuring on wood and the travertine of rocks in shallow riffles (Hilsenhoff and Schmude 1992).

        Lutrochus Erichson, 1847: 509

          Lutrochus laticeps Casey, 1893: 580 - Brown 1972, Spangler et al. 2001: 11

        References - Taxonomic and Distribution

          Casey TL. 1893. Coleopterological notices V. Annals of the New York Academy of Sciences 7: 281-606.
          Erichson WF. 1847. Naturgeschichte der Insecten Deutschlands. Abteilung 1. Coleoptera 3(4): 481-640. Berlin.
          Hilsenhoff WL, Schmude KL. 1992. Riffle beetles of Wisconsin (Coleoptera: Dryopidae, Elmidae, Lutrochidae, Psephenidae) with notes on distribution, habitat, and identification. The Great Lakes Entomologist 25(3):191-209.
          Spangler PJ, Staines CL, Spangler PM, Staines SL. 2001. A checklist of the Limnichidae and the Lutrochidae (Coleoptera) of
          the world. Insecta Mundi 15(3): 151-165. Paper 197.

      PSEPHENIDAE Lacordaire, 1854 (Water Pennies)

      Larva of Psephenus herricki (Copyright © 2006 Ethan Bright)
      Psephenus herricki - larva - copyright 2006 Ethan Bright
        Ectopria LeConte, 1853 (Subfamily Eubriinae)
          Ectopria leechi Brigham, 1981
          Ectopria nervosa (Melsheimer, 1845) Eubria (orig.) - Yankoviak and McCafferty 1996: 205
            (syn.) Eubria thoracica Ziegler, 184
            (syn.) Ectopria tarsalis LeConte, 1853
            (syn.) Ectopria tibialis LeConte, 1853

        Psephenus Haldeman 1853 (Subfamily Psepheninae)
          Psephenus herricki (De Kay, 1844) Fluvicola (orig., described as an isopod) - Brown and Murvosh 1974: 315-322; widespread in state
            (nom. nud.) Eurypalpus lecontei De Jean, 1837
            (syn.) Psephenus lecontei Haldeman, 1853

      PTILODACTYLIDAE Laporte, 1836 (Toad-Winged Beetles)

      Larvae are known to live in semiaquatic or aquatic habitats, such as decaying damp logs and organic muck. Recently the larva of Paralichas (=Odontyonyx) trivattis has been described, reared from specimens sampled from spring seeps in eastern Pennsylvania (Funk and Fenstermacher 2002). Downie and Arnett (1996) list a questionable record from Indiana, and since the biology and distribution of this species are not well known, I have included this taxa as it conceivably may occur in our area, especially in morainal/outwash areas of southern Michigan where groundwater seeps occur.

        Odontonyx Guérin-Méneville, 1843
          Odontonyx trivittis (Germar, 1824 as Dasytes) - IN?, PA

      SCIRTIDAE Fleming, 1821 (=Helodidae) (Marsh Beetles)

        Cyphon Paykull, 1799
          Cyphon collaris (Guérin-Meneville, 1843 as Elodes) - IN, ON
          Cyphon confusus Brown, 1930 - Young and Stribling 1990: 201-202
            (syn.) Cyphon horioni Klausnitzer, 1976
          Cyphon drymophilous Young & Stribling, 1990 - OH, WI (Young and Stribling 1990: 202-203)
          Cyphon obscurus (Guérin-Meneville, 1843 as Elodes) - IN, OH, ON
          Cyphon padi (Linnaeus, 1758 as Chrysomela) - IN, ON
          Cyphon ruficollis (Say, 1825 as Lampyris) - IN (widespread east and central)
          Cyphon variabilis (Thunberg, 1785 as Cantharis) - Downie and Arnett 1996

        Elodes Latreille, 1796
          Elodes fuscipennis Guérin-Meneville 1843 - IN
          Elodes maculicollis (Horn, 1880 as Helodes) - ON
          Elodes pulchella Guérin-Meneville, 1843 - IN
          Elodes thoracica Guérin-Meneville, 1843 - IN, ON

        Microcara Thomson 1859
          Microcara explanata (LeConte, 1866 as Helodes) - Downie and Arnett 1996, shores of Lake Michigan

        Prionocyphon Redtenbacher, 1858
          Prionocyphon discoideus (Say, 1825 as Cyphon) - Downie and Arnett 1996

        Scirtes Illiger, 1807
          Scirtes orbiculatus (Fabricius, 1801 as Cyphon) - IN, OH
          Scirtes tibialis (Guérin-Meneville, 1843 as Scirtes) - IN, ON, WI

        STAPHYLINIDAE Latreille (Rove Beetles) (separate page)

      References - Distribution

        Archangelsky M, Branham MA. 1998. Description of the preimaginal stages of Pyractomena borealis (Randall, 1838)(Coleoptera: Lampyridae) and notes on its biology. Proceedings of the Entomological Society of Washington 100(3):421-430).
        Askevold IS. 1991. Classification, reconstructed phylogeny, and geographic history of the new world members of Plateumaris Thomson, 1859 (Coleoptera: Chrysomelidae: Donaciinae). Memoirs of the Entomological Society of Canada 157:1-175.
        Atton FM. 1990. Gyrinus (Gyrinulus) cavatus sp. nov. from North America described and compared with Gyrinus (Gyrinulus) minutus Fabricius (Coleoptera: Gyrinidae). The Canadian Entomologist 122(4):651-657.
        Brigham WU. 1981. Ectopria leechi, a new false water penny from the United States (Coleooptera: Eubriidae). Pan-Pacific Entomologist 57:313-320.
        Brown HP. 1972. Aquatic dyropoid beetles (Coleoptera) of the United States. Biota of Freshwater Ecosystems Identification Manual No. 6. United States Environmental Protection Agency Project # 18050, Contract # 14-12-894, April 1972. x + 82 pp.
        Brown HP. 1987. Biology of riffle beetles. Annual Review of Entomology 32: 253-273.
        Brown HP, Murvosh CM. 1974. A revision of the genus Psephenus (water-penny beetles) of the United States and Canada (Coleoptera, Dryopoidea, Psephenidae). Transactions of the American Entomological Society 100:289-340.
        Cheary BS. 1971. The biology, ecology and systematics of the genus Laccobius (Laccobius) (Coleoptera: Hydrophilidae) of the new world. Privately printed. Riverside, CA. xv + 177 pp.
        Creed RP. 1998. A biogeographic perspective on Eurasian watermilfoil declines: additional evidence for the role of herbivorous weevils in promoting declines?. Journal of Aquatic Plant Management 36: 16-22.
        Downie NM, Arnett RH. 1996. The beetles of Northeastern North America. Volume I. Introduction; Suborders Archostemata, Adephaga, and Polyphaga, thru Superfamily Cantharoidea. The Sandhill Crane Press: Gainesville, Florida. xiv + 880 pp.
        Funk DH, Fenstermacher H. 2002. Description of the aquatic larva and pupa of Paralichas trivittis (Coleoptera: Ptilodactylidae), with notes on its biology. Entomological News 113(5): 344-354.
        Hardy AR, Bheary BS, Malcolm SE. 1981. A clarification of the authorship of some names in Laccobius Erichson (Coleoptera: Hydrophilidae). Pan-Pacific Entomologist 57(1):303-305.
        Hilsenhoff WL. 1992. Dytiscidae and Noteridae of Wisconsin (Coleoptera). I. Introduction, key to genera of adults, and distribution, habitat, life cycle, and identification of species of Abagetinae, Laccophilinae and Noteridae. The Great Lakes Entomologist 25(2): 57-69.
        Hilsenhoff WL. 1995b. Aquatic Hydrophilidae and Hydraenidae of Wisconsin (Coleoptera). I. Introduction, key to genera, and distribution, habitat, life cycle and identification of species of Helophorus Fabricius, Hydrochus Leach, and Berosus Leach (Hydrophilidae), and Hydraenidae. The Great Lakes Entomologist 28(1):25-53.
        Hilsenhoff WL. 1995c. Aquatic Hydrophilidae and Hydraenidae of Wisconsin (Coleoptera). II. Distribution, habitat, life cycle and identification of species of Hydrobiini and Hydrophilini (Hydrophilidae: Hydrophilinae). The Great Lakes Entomologist 28(2):97-126.
        Jolivet P, Hawkeswood TJ. 1995. Host-plants of Chrysomelidae of the World: An Essay about the Relationships Between the Leaf-beetles and their Food-plants. Backhuys Publishers: Leiden, Netherlands. 281 pp. + xiii.
        Jolivet P., Verma KK. 2002. Biology of leaf beetles. Intercept Limited: Andover, UK. 332 pp. + xiv
        Kölsch G., Pedersen BV. 2008. Molecular phylogeny of reed beetles (Col., Chrysomelidae, Donaciinae): The signature of ecological specialization and geographical isolation. Molecular Phylogenetics and Evolution 48: 936–952.
        Lloyd JE. 1999. On research and entomological education III: firefly brachyptery and wing "polymorphism" at Pitkin Marsh and watery retreats near summer camps (Coleoptera: Lampyridae; Pyropyga. Florida Entomologist 82(2):165-179
        Luk SPL, Marshall SA, Branham MA. 2011. The fireflies of Ontario (Coleoptera: Lampyridae). Canadian Journal of Arthropod Identification 16: 1-105.
        Merritt RW, Benbow ME, Hudson PL. 2002. Wetland macroinvertebrates of Prentiss Bay, Lake Huron, Michigan: diversity and function group comparison. The Great Lakes Entomologist 35(2): 149-160.
        Musgrave PN. 1935. A synopsis of the genus Helichus Erichson in the United States and Canada, with description of a new species (Coleoptera: Dryopidae). Proceedings of the Entomological Society of Washington 37(7):137-144, 1 pl.
        Oygur S, Wolfe GW. 1991. Classification, distribution, and phylogeny of North American (North of Mexico) species of Gyrinus Müller (Coleoptera: Gyrinidae). Bulletin of the American Museum of Natural History 207:1-97.
        Perkin PD. 1980. Aquatic beetles of the family Hydraenidae in the Western Hemisphere: classification, biogeography and inferred phylogeny (Insecta: Coleoptera). Quaestiones Entomologicae 16(1-2):3-554.
        Reitter E. 1909. Fauna Germanica. Die Käfer des Deutschen Reiches, Vol. 2, p. 392. K.G. Lutz, Stuttgart.
        Ryker LC. 1972. Acoustic behavior of four sympatric species of water scavenger beetles (Coleoptera, Hydrophilidae, Tropisternus). Occasional Papers of the Museum of Zoology, University of Michigan 666:1-19.
        Smetana A. 1974. Revision of the genus Cymbiodyta Bed. (Coleoptera: Hydrophilidae). Memoirs of the Entomological Society of Canada 93: 1-113.
        Smetana A. 1980. Revision of the genus Hydrochara Berth. (Coleoptera: Hydrophilidae). Memoirs of the Entomological Society of Canada 111:1-100.
        Smetana A. 1988. Review of the family Hydrophilidae of Canada and Alaska (Coleoptera). Memoirs of the Entomological Society of Canada 142. 316 p.
        Tanner VM. 1943. A study of the subtribe Hydronomi with a description of new species, (Curculionidae), study No. VI. The Great Basin Naturalist 3(1-2):1-38.
        Waltz RD. 2002. Reports of rarely collected or previously unreported Indiana Coleoptera (Insecta): Cerambycidae, Cerophytidae, Hydraenidae, Hydrophilidae, Nitidulidae, Scarabaeidae, Staphylinidae, Trogossitidae. Proceedings of the Indiana Academy of Science 111(2): 177-181.
        Willson RB. 1970. The Hydrophilidae of Michigan with keys to species of the Great Lakes region. MS Thesis, Michigan State University, East Lansing, Michigan. vi + 100 p.
        Yanoviak SP, McCafferty WP. 1996. Comparison of macroinvertebrate assemblages inhabiting pristine streams in the Huron Mountains of Michigan, USA. Hydrobiologia 330: 195-211.
        Young FN. 1981. Predaceous water beetles of the genus Desmopachria: the convexa-grana group. Occasional Papers of the Florida State Collection of Arthropods 2: 1-11.
        Young DK, Stribling JB. 1990. Systematics of the North American Cyphon collaris species complex with the description of a new species (Coleoptera: Scirtidae). Proceedings of the Entomological Society of Washington 92(2): 194-204.

      Page edits:

        April 15, 2023
        • Link to the Beetles of Michigan provided
        June 07, 2020
        • Updated species lists to Hydrophilidae and Helophoridae (added H. smetanai Hilsenhoff and removed H. artus Smetana from list, not likely to occur in M, moved H. tumidus LeConte to Limnohydrobius)
        August 08, 2016
        • Added new records of Plateumaris (Chrysomelidae, Donaciinae) from publication records in Askevold 1991
        August 04, 2016
        • Added new records of Chrysomelidae from publication records in Kölsch & Pedersen 2008
        January 16, 2013
        • Added Phaenonotum exstriatum to list; Smetana (1988) indicates a semi-aquatic ecology, found along water edges; Willston (1970) found it Sphagnum bog mat
        • Added species of Cercyon that Smetana (1988) considers associated with aquatic habitats (peri- to semi-aquatic)
        November 21, 2012
        • Beginning to keep track of changes to the web site pages
        • Removed individual pages for families into one long list, families accessed from left menu via anchor redirects within page.

      Page created: November 01, 2002; Last update April 15, 2023 (EB)