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REVISION OF THE SUBFAMILY SPHAERIDIINAE OF AMERICA NORTH OF MEXICO (COLEOPTERA: HYDROPHILIDAE)

Memoirs of the Entomological Society of Canada

Cambridge University Press (CUP)

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      Abstract

      A revision of the hydrophilid subfamily Sphaeridiinae (Coleoptera) is presented including a historical review, a discussion of diagnostic characters and techniques, and some conclusive remarks, mostly on the zoogeography of this group in North America.Thirteen genera and 62 species are recognized. Three genera, one subgenus, 12 species, and one subspecies are described as new. SphaeridiolinusMenozzi, 1921, is placed in synonymy with SphaeridiumFabricius, 1775; ErcyconRey, 1885, and ParaliocercyonGanglbauer, 1904, are placed in synonymy with CercyonLeach, 1817. On the specific level, Phaenonotum dubiumSharp, 1882, is placed in synonymy with Ph. exstriatum(Say, 1837); Sphaeridium quadrimaculatumHerbst, 1783, marginatumFabricius, 1787, daltoniStephens, 1829, semistriatumLaporte, 1840, testaceumHeer, 1841, humeraleWesthoff, 1881, nigrumCsiki, 1953, and pulchrumCsiki, 1953, with S. bipustulatumFabricius, 1781; Sphaeridium striolatumHeer, 1841, pictumMénétries, 1832, marginatumNormand, 1933, nigerrimumReitter, 1909, inhumeraleCsiki, 1953, and confluensEndrÖdy-Younga, 1967, with S. scarabaeoides(Linné, 1758); Cercyon testaceusBlatchley, 1923, with C. praetextatus(Say, 1825); Cercyon fulvipennisMannerheim, 1852, with C. limbatusMannerheim, 1843; Cercyon mulsantiGanglbauer, 1904, with C. quisquilius(Linné, 1761); Cercyon impunctatusKuwert, 1890, and janssoniNyholm, 1952, with C. unipunctatus(Linné, 1758); Cercyon incrematusNotman, 1920, with C. lateralis(Marsham, 1802); Cercyon erythropterusMulsant, 1840, discoidalisJ. Sahlberg, 1913, basillarisNotman, 1920, and bifenestratellusEndrÖdy-Younga, 1967, with C. haemorrhoidalis(Fabricius, 1775); Cercyon rufipennisCsiki, 1953, with C. impressus(Sturm, 1807); Cercyon rubripennisKuwert, 1890, with C. melanocephalus(Linné, 1758); Cercyon separandusRey, 1885, and pictithoraxGridelli, 1926, with C. terminants(Marsham, 1802); Cercyon binotatusStephens, 1829, and ruficollisSchilsky, 1888, with C. litoralis(Gyllenhal, 1808); Cercyon falliWinters, 1944 (nomen nudum), with C. analis(Paykull, 1798); Cybocephalus unicolorMotschulsky, 1845, with Cercyon adumbratusMannerheim, 1843; Cryptopleurum cereiSchwarz, 1899, with C. impressumSharp, 1882.Neotypes are designated for Cercyon praetextatus(Say), C. occallatus(Say), and C. minusculusMelsh. Lectotypes are designated for Dactylosternum advectumHorn, D. cacti(LeC.), Oosternum costatumSharp, Cercyon roseniKnisch, C. opacellusFall, C. pubescensLeC., C. kulzeriKnisch, C. nevadanusKnisch, C. floridanusHorn, C. testaceusBlatch., C. limbatusMannh., C. fulvipennisMannh., C. variegatusSharp, C. indistinctusHorn, C. adumbratusMannh., C. fimbriatusMannh., C. lunigerMannh., C. maculatusMelsh., Genyon navicularis(Zimm.), Megasternum posticatumMannh., Cryptopleurum impressumSharp, C. cereiSchw., and C. subtileSharp.Keys to tribes, genera, and species are provided. The tribes and genera are described; each species is described and illustrated, and all available bionomic and distributional data are presented; distributional records are mapped.

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      Entomologica Carniolica exhibens insecta Carnioliae indigena et distributa in ordines genera species varietates methodo Linnaeana /

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        An illustrated descriptive catalogue of the Coleoptera or beetles (exclusive of the Rhynchophora) known to occur in Indiana, with bibliography and description of new species.

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          Precis des caracteres generiques des insectes disposes dans un ordre naturel

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            Author and article information

            Journal
            applab
            Memoirs of the Entomological Society of Canada
            Mem. Entomol. Soc. Can.
            Cambridge University Press (CUP)
            0071-075X
            1978
            May 31 2012
            1978
            : 110
            : S105
            : 1-292
            10.4039/entm110105fv
            © 1978

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