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Species found: 635
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Cercyon melanocephalus Linnaeus, 1758
Coleoptera, Hydrophilidae
Cercyon mellipes Say, 1835
Cercyon mendax Smetana, 1978
Cercyon mexicanus Sharp, 1882
Cercyon miniusculus Melsheimer, 1846
Cercyon nevadanus Knisch, 1924
Cercyon nigriceps Marsham, 1802
Cercyon obsoletus (Gyllenhal, 1808)
Cercyon ocallatus Say, 1825
Cercyon paradoxus Kuwert, 1890
Cercyon praetextatus Say, 1825
Cercyon putricola Wollaston, 1867
Cercyon pygmaeus Illiger, 1801
Cercyon quisquilius Linnaeus, 1761
Cercyon renneri Hebauer, 1997
Cercyon rhomboidalis Perris, 1874
Cercyon roseni Knisch, 1922
Cercyon spathifer Smetana, 1978
Cercyon sternalis (Sharp, 1918)
Cercyon subsulcatus Rey, 1885
Cercyon tatricus Endrody-Younga, 1967
Cercyon terminatus Marsham, 1802
Cercyon tolfino Hatch, 1965
Cercyon tristis Illiger, 1801
Cercyon unipunctatus Linnaeus, 1758
Cercyon ustulatus Preyssler, 1790
Cercyon variegatus Sharp, 1882
Cercyon versicolor Smetana, 1978
Chaetarthria atra LeConte, 1863
Chaetarthria atroides Miller, 1974
Chaetarthria bicolor Sharp, 1882
Chaetarthria glabra Sharp, 1882
Chaetarthria hespera Miller, 1974
Chaetarthria laeticula Sharp, 1882
Chaetarthria leechi Miller, 1974
Chaetarthria magna Miller, 1974
Chaetarthria nigrella LeConte, 1861
Chaetarthria ochra Miller, 1974
Chaetarthria pallida LeConte, 1861
Chaetarthria punctulata Sharp, 1882
Chaetarthria pusilla Sharp, 1882
Chaetarthria seminulum (Herbst, 1797)
Chaetarthria similis Wollaston, 1864
Chaetarthria spinata Miller, 1974
Chaetarthria truncata Miller, 1974
Chaetarthria utahensis Miller, 1974
Chasmogenus livornicus Kuwert, 1890
Chasmogenus sapucay Fernández, 1986
Coelofletium exstriatum Orchymont, 1925
Coelostoma fabricii Montrouzier, 1860
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