| Amblonoxia bidentata Fall, 1932 | |
| Amblonoxia carpenteri LeConte, 1876 | |
| Amblonoxia fieldi Fall, 1908 | |
| Amblonoxia harfordi Casey, 1889 | |
| Amblonoxia palpalis Horn, 1880 | |
| Amblonoxia riversi Casey, 1895 | |
| Amphimallon (Amphimallon) majale Razoumowsky, 1789 | European Chafer |
| Amphimallon majalis (Razoumowsky, 1789) | ⇒ Amphimallon majale Razoumowsky, 1789 |
| Dinacoma caseyi Blaisdell, 1930 | Casey's June beetle |
| Dinacoma marginata Casey, 1889 | |
| Dinacoma sanfelipe Gillett, Osb..., 2020 | |
| Fossocarus creoleorum Howden, 1961 | |
| Gronocarus automnalis Schaeffer, 1927 | |
| Gronocarus autumnalis Schaeffer, 1927 | Kappie blenny |
| Gronocarus inornatus Skelley, 2003 | |
| Gronocarus multispinosus (Howden, 1967) | ⇒ Gronocarus autumnalis Schaeffer, 1927 |
| Hypothyce burnei Skelley, 2003 | |
| Hypothyce mixta Howden, 1968 | |
| Hypothyce osburni Cartwright, 1967 | Mangrove blenny |
| Hypothyce rayi MacGown & Hill, 2023 | |
| Hypotrichia spissipes LeConte, 1862 | |
| Melolontha aphodiina Billberg, 1802 | |
| Melolontha porcina (Hentz, 1830) | ⇒ Phyllophaga ilicis Knoch, 1801 |
| Phyllophaga (Chlaenobia) pilositarsis Blackwelder, 1944 | |
| Phyllophaga (Chlaenobia) vexata Horn, 1885 | |
| Phyllophaga (Cnemarachis) bruneri Chapin, 1932 | Cuban May Beetle |
| Phyllophaga (Cnemarachis) ecostata Horn, 1887 | |
| Phyllophaga (Cnemarachis) youngi Cartwright, 1935 | |
| Phyllophaga (Listrochelus) arenicola Howden, 1960 | |
| Phyllophaga (Listrochelus) arizona Saylor, 1940 | |
| Phyllophaga (Listrochelus) bottimeri Reinhard, 1950 | |
| Phyllophaga (Listrochelus) carminator Horn, 1894 | |
| Phyllophaga (Listrochelus) cavata Bates, 1888 | |
| Phyllophaga (Listrochelus) chapini Saylor, 1940 | |
| Phyllophaga (Listrochelus) cochisa Saylor, 1940 | |
| Phyllophaga (Listrochelus) curialis Reinhard, 1939 | |
| Phyllophaga (Listrochelus) cushmani Saylor, 1940 | |
| Phyllophaga (Listrochelus) densicollis LeConte, 1863 | |
| Phyllophaga (Listrochelus) disparilis Horn, 1878 | |
| Phyllophaga (Listrochelus) duncani Barrett, 1933 | Jumping blenny |
| Phyllophaga (Listrochelus) eligia Sanderson, 1958 | |
| Phyllophaga (Listrochelus) estacea Saylor, 1943 | |
| Phyllophaga (Listrochelus) falsa LeConte, 1856 | |
| Phyllophaga (Listrochelus) fimbripes LeConte, 1856 | |
| Phyllophaga (Listrochelus) flavipennis Horn, 1885 | |
| Phyllophaga (Listrochelus) granti Saylor, 1940 | |
| Phyllophaga (Listrochelus) huachuca Saylor, 1940 | |
| Phyllophaga (Listrochelus) knausii Schaeffer, 1907 | |
| Phyllophaga (Listrochelus) koehleriana Saylor, 1940 | |
| Phyllophaga (Listrochelus) luginbilli Saylor, 1941 | |
| Phyllophaga (Listrochelus) macmurryi Saylor, 1940 | |
| Phyllophaga (Listrochelus) meadei Saylor, 1940 | |
| Phyllophaga (Listrochelus) michelbacheri Saylor, 1940 | |
| Phyllophaga (Listrochelus) micros Bates, 1888 | |
| Phyllophaga (Listrochelus) mimicana Saylor, 1938 | |
| Phyllophaga (Listrochelus) miraflora Saylor, 1940 | |
| Phyllophaga (Listrochelus) mucorea LeConte, 1856 | |
| Phyllophaga (Listrochelus) neomexicana Saylor, 1940 | |
| Phyllophaga (Listrochelus) nogales (Saylor, 1940) | ⇒ Phyllophaga falsus LeConte, 1856 |
| Phyllophaga (Listrochelus) opacicollis Horn, 1878 | |
| Phyllophaga (Listrochelus) parilis Bates, 1888 | |
| Phyllophaga (Listrochelus) peninsularis Saylor, 1940 | |
| Phyllophaga (Listrochelus) pilosipes Saylor, 1940 | |
| Phyllophaga (Listrochelus) planeta Reinhard, 1950 | |
| Phyllophaga (Listrochelus) plena (Fall, 1932) | ⇒ Phyllophaga pleroma Reinhard, 1940 |
| Phyllophaga (Listrochelus) pulcher Linell, 1896 | |
| Phyllophaga (Listrochelus) reinhardi Saylor, 1940 | |
| Phyllophaga (Listrochelus) scoparia LeConte, 1856 | |
| Phyllophaga (Listrochelus) scuticeps Bates, 1888 | |
| Phyllophaga (Listrochelus) senex Horn, 1878 | |
| Phyllophaga (Listrochelus) snowi Saylor, 1940 | |
| Phyllophaga (Listrochelus) tarsalis Schaeffer, 1908 | |
| Phyllophaga (Listrochelus) temaxa Saylor, 1940 | |
| Phyllophaga (Listrochelus) texensis Saylor, 1940 | |
| Phyllophaga (Listrochelus) timida Horn, 1878 | |
| Phyllophaga (Listrochelus) trochanter Saylor, 1940 | |
| Phyllophaga (Listrochelus) wickhami Saylor, 1940 | |
| Phyllophaga (Phyllophaga) aemula Horn, 1887 | |
| Phyllophaga (Phyllophaga) aequalis LeConte, 1854 | |
| Phyllophaga (Phyllophaga) affabilis Horn, 1887 | |
| Phyllophaga (Phyllophaga) albina Burmeister, 1855 | Highfin blenny |
| Phyllophaga (Phyllophaga) antennata Smith, 1889 | |
| Phyllophaga (Phyllophaga) anxia LeConte, 1850 | Cranberry White Grub |
| Phyllophaga (Phyllophaga) apicata Reinhard, 1939 | Bearded lupine |
| Phyllophaga (Phyllophaga) arcta Horn, 1887 | |
| Phyllophaga (Phyllophaga) arkansana Schaeffer, 1906 | |
| Phyllophaga (Phyllophaga) aurea Luginbill an..., 1941 | |
| Phyllophaga (Phyllophaga) balia Say, 1825 | |
| Phyllophaga (Phyllophaga) barda Horn, 1887 | |
| Phyllophaga (Phyllophaga) beckeri Moser, 1921 | Highfinned blenny |
| Phyllophaga (Phyllophaga) bipartita Horn, 1887 | |
| Phyllophaga (Phyllophaga) calceata LeConte, 1856 | |
| Phyllophaga (Phyllophaga) canipolea Saylor, 1948 | |
| Phyllophaga (Phyllophaga) cazieriana Saylor, 1938 | |
| Phyllophaga (Phyllophaga) chippewa Saylor, 1939 | Impspringer |
| Phyllophaga (Phyllophaga) clemens Horn, 1887 | |
| Phyllophaga (Phyllophaga) clypeata Horn, 1887 | |
| Phyllophaga (Phyllophaga) congrua LeConte, 1856 | |
| Phyllophaga (Phyllophaga) contaminata Fall, 1932 | |
| Phyllophaga (Phyllophaga) corrosa LeConte, 1856 | |
| Phyllophaga (Phyllophaga) crassissima Blanchard, 1851 | |
| Phyllophaga (Phyllophaga) crenulata Frölich, 1792 | |
| Phyllophaga (Phyllophaga) cribrosa LeConte, 1853 | |
| Phyllophaga (Phyllophaga) crinita Burmeister, 1855 | Highfin blenny |
| Phyllophaga (Phyllophaga) cupuliformis (Langston, 1924) | ⇒ Phyllophaga micans Knoch, 1801 |
| Phyllophaga (Phyllophaga) curialis Reinhard, 1939 | Bearded lupine |
| Phyllophaga (Phyllophaga) cylindrica Burmeister, 1855 | Highfin blenny |
| Phyllophaga (Phyllophaga) davisi Langston, 1927 | |
| Phyllophaga (Phyllophaga) debilis LeConte, 1856 | |
| Phyllophaga (Phyllophaga) delata Horn, 1887 | |
| Phyllophaga (Phyllophaga) dentex Bates, 1888 | |
| Phyllophaga (Phyllophaga) diffinis Blanchard, 1851 | |
| Phyllophaga (Phyllophaga) dispar Burmeister, 1855 | Highfin blenny |
| Phyllophaga (Phyllophaga) drakii Kirby, 1837 | |
| Phyllophaga (Phyllophaga) elizoria Saylor, 1937 | |
| Phyllophaga (Phyllophaga) elongata Linell, 1896 | |
| Phyllophaga (Phyllophaga) ephilida Say, 1825 | Bearded lupine |
| Phyllophaga ephilida ephilida Say, 1825 | |
| Phyllophaga ephilida virilis Reinhard, 1939 | |
| Phyllophaga (Phyllophaga) epigaea Wickham, 1903 | |
| Phyllophaga (Phyllophaga) errans LeConte, 1860 | |
| Phyllophaga (Phyllophaga) falta LeConte, 1856 | |
| Phyllophaga (Phyllophaga) farcta LeConte, 1856 | Distended May beetle |
| Phyllophaga (Phyllophaga) fervida Fabricius, 1775 | |
| Phyllophaga (Phyllophaga) floridana Robinson, 1938 | |
| Phyllophaga (Phyllophaga) forbesi Glasgow, 1916 | |
| Phyllophaga (Phyllophaga) forsteri Burmeister, 1855 | Highfin blenny |
| Phyllophaga (Phyllophaga) foxii Davis, 1920 | |
| Phyllophaga (Phyllophaga) fraterna Harris, 1842 | Bluespotted blenny |
| Phyllophaga fraterna fraterna Harris, 1842 | |
| Phyllophaga fraterna mississippiensis Davis, 1920 | |
| Phyllophaga (Phyllophaga) fucata Horn, 1887 | |
| Phyllophaga (Phyllophaga) fusca Frölich, 1792 | Northern June beetle |
| Phyllophaga (Phyllophaga) futilis LeConte, 1850 | Gibbous June beetle |
| Phyllophaga (Phyllophaga) glaberrima Blanchard, 1851 | |
| Phyllophaga (Phyllophaga) glabricula LeConte, 1856 | |
| Phyllophaga (Phyllophaga) gracilis Burmeister, 1855 | Highfin blenny |
| Phyllophaga gracilis angulata Glasgow, 1925 | |
| Phyllophaga gracilis gracilis | |
| Phyllophaga (Phyllophaga) gravidula Moser, 1921 | Highfinned blenny |
| Phyllophaga (Phyllophaga) hamata Horn, 1887 | |
| Phyllophaga (Phyllophaga) hirsuta Knoch, 1801 | |
| Phyllophaga (Phyllophaga) hirticula Knoch, 1801 | |
| Phyllophaga hirticula comosa Davis, 1920 | |
| Phyllophaga hirticula hirticula Knoch, 1801 | |
| Phyllophaga (Phyllophaga) hirtiventris Horn, 1887 | |
| Phyllophaga (Phyllophaga) hornii Smith, 1889 | |
| Phyllophaga (Phyllophaga) hubbelli Cartwright, 1946 | |
| Phyllophaga (Phyllophaga) idonea Sanderson, 1948 | Lineated blenny |
| Phyllophaga (Phyllophaga) ignava Horn, 1887 | |
| Phyllophaga (Phyllophaga) ilicis Knoch, 1801 | |
| Phyllophaga (Phyllophaga) impar Davis, 1920 | |
| Phyllophaga (Phyllophaga) implicita Horn, 1887 | |
| Phyllophaga (Phyllophaga) incuria Sanderson, 1942 | |
| Phyllophaga (Phyllophaga) inepta Horn, 1887 | |
| Phyllophaga (Phyllophaga) infidelis Horn, 1887 | |
| Phyllophaga (Phyllophaga) inflexa Barrett, 1935 | |
| Phyllophaga (Phyllophaga) instabilis Blackwelder, 1944 | |
| Phyllophaga (Phyllophaga) inversa Horn, 1887 | Southern June beetle |
| Phyllophaga (Phyllophaga) invisa Riley and Wolfe, 1997 | Freshwater blenny |
| Phyllophaga (Phyllophaga) juvenilis Fall, 1932 | |
| Phyllophaga (Phyllophaga) karlsioei Linell, 1898 | |
| Phyllophaga (Phyllophaga) kentuckiana Ritcher, 1937 | |
| Phyllophaga (Phyllophaga) knochii Schönherr an..., 1817 | |
| Phyllophaga (Phyllophaga) latidens Schaeffer, 1906 | |
| Phyllophaga (Phyllophaga) latifrons LeConte, 1856 | |
| Phyllophaga (Phyllophaga) lenis Horn, 1887 | |
| Phyllophaga (Phyllophaga) lobata Fall, 1908 | |
| Phyllophaga (Phyllophaga) lodingi Sanderson, 1939 | Freshwater blenny |
| Phyllophaga (Phyllophaga) longispina Smith, 1889 | |
| Phyllophaga (Phyllophaga) longitarsa Say, 1824 | |
| Phyllophaga (Phyllophaga) lota Luginbill, 1928 | Floating blenny |
| Phyllophaga (Phyllophaga) luctuosa Horn, 1887 | |
| Phyllophaga (Phyllophaga) maculicollis LeConte, 1863 | |
| Phyllophaga (Phyllophaga) marginalis LeConte, 1856 | Sand stargazer |
| Phyllophaga marginalis insolita Cartwright, 1944 | |
| Phyllophaga marginalis marginalis LeConte, 1856 | |
| Phyllophaga (Phyllophaga) mariana Fall, 1929 | |
| Phyllophaga (Phyllophaga) micans Knoch, 1801 | |
| Phyllophaga micans cupuliformis Langston, 1924 | |
| Phyllophaga (Phyllophaga) nebulosa Polihronakis, 2007 | Threadfin blenny |
| Phyllophaga (Phyllophaga) nitida LeConte, 1856 | |
| Phyllophaga (Phyllophaga) okeechobea Robinson, 1948 | |
| Phyllophaga (Phyllophaga) opaca Moser, 1918 | Dussumier's blenny |
| Phyllophaga (Phyllophaga) ovalis Cartwright, 1939 | |
| Phyllophaga (Phyllophaga) panorpa Sanderson, 1950 | |
| Phyllophaga (Phyllophaga) parvidens LeConte, 1856 | |
| Phyllophaga parvidens hysteropyga Davis, 1920 | |
| Phyllophaga parvidens parvidens Theodor & Me..., 1964 | |
| Phyllophaga (Phyllophaga) paternoi Glasgow, 1925 | Rockskipper |
| Phyllophaga (Phyllophaga) pearliae Davis, 1920 | |
| Phyllophaga (Phyllophaga) perlonga Davis, 1920 | |
| Phyllophaga (Phyllophaga) pleroma Reinhard, 1940 | Striated sabretooth blenny |
| Phyllophaga (Phyllophaga) postrema Horn, 1887 | |
| Phyllophaga (Phyllophaga) praetermissa Horn, 1887 | |
| Phyllophaga (Phyllophaga) profunda Blanchard, 1851 | |
| Phyllophaga (Phyllophaga) prunina LeConte, 1856 | |
| Phyllophaga (Phyllophaga) prununculina Burmeister, 1855 | Highfin blenny |
| Phyllophaga (Phyllophaga) pseudofloridana Woodruff and..., 1989 | |
| Phyllophaga (Phyllophaga) psiloptera Sanderson, 1939 | Freshwater blenny |
| Phyllophaga (Phyllophaga) pudorosa Reinhard, 1939 | Bearded lupine |
| Phyllophaga (Phyllophaga) pusillidens Fall, 1937 | |
| Phyllophaga (Phyllophaga) quercus Knoch, 1801 | |
| Phyllophaga (Phyllophaga) ravida Blanchard, 1851 | |
| Phyllophaga (Phyllophaga) reevesi Saylor, 1939 | Impspringer |
| Phyllophaga (Phyllophaga) renodis Reinhard, 1939 | Bearded lupine |
| Phyllophaga (Phyllophaga) riviera Reinhard, 1950 | |
| Phyllophaga (Phyllophaga) rolstoni Riley and Wolfe, 1997 | Freshwater blenny |
| Phyllophaga (Phyllophaga) rossi Saylor, 1939 | Impspringer |
| Phyllophaga (Phyllophaga) rubiginosa LeConte, 1856 | |
| Phyllophaga (Phyllophaga) rubricosa Reinhard, 1939 | Bearded lupine |
| Phyllophaga (Phyllophaga) rugosa Melsheimer, 1845 | Rugose June beetle |
| Phyllophaga (Phyllophaga) sacoma Reinhard, 1939 | Bearded lupine |
| Phyllophaga (Phyllophaga) schaefferi Saylor, 1937 | |
| Phyllophaga (Phyllophaga) scitula Horn, 1887 | |
| Phyllophaga (Phyllophaga) sequoiana Saylor, 1936 | Olive blenny |
| Phyllophaga (Phyllophaga) skelleyi Woodruff and..., 1989 | |
| Phyllophaga (Phyllophaga) sociata Horn, 1878 | |
| Phyllophaga (Phyllophaga) sodalis Reinhard, 1940 | Striated sabretooth blenny |
| Phyllophaga (Phyllophaga) soror Davis, 1920 | |
| Phyllophaga (Phyllophaga) spreta Horn, 1887 | |
| Phyllophaga (Phyllophaga) squamipilosa Saylor, 1937 | |
| Phyllophaga (Phyllophaga) stohleri Saylor, 1938 | |
| Phyllophaga (Phyllophaga) submucida LeConte, 1856 | |
| Phyllophaga (Phyllophaga) subpruinosa Casey, 1884 | |
| Phyllophaga (Phyllophaga) subtonsa LeConte, 1856 | |
| Phyllophaga (Phyllophaga) sylvatica Sanderson, 1942 | |
| Phyllophaga (Phyllophaga) taxodii Langston, 1924 | |
| Phyllophaga (Phyllophaga) tecta Cartwright, 1944 | Sand stargazer |
| Phyllophaga (Phyllophaga) temora Saylor, 1943 | |
| Phyllophaga (Phyllophaga) torta LeConte, 1856 | |
| Phyllophaga (Phyllophaga) tristis (Fabricius, 1781) | ⇒ Trichesthes apicata Reinhard, 1939 |
| Phyllophaga (Phyllophaga) tusa Horn, 1887 | |
| Phyllophaga (Phyllophaga) ulkei Smith, 1889 | |
| Phyllophaga (Phyllophaga) uniformis Blanchard, 1851 | |
| Phyllophaga (Phyllophaga) vehemens Horn, 1887 | |
| Phyllophaga (Phyllophaga) vetula Horn, 1887 | |
| Phyllophaga (Phyllophaga) vilifrons LeConte, 1856 | |
| Phyllophaga (Phyllophaga) xerophila Saylor, 1939 | Impspringer |
| Phyllophaga (Phyllophaga) yemasseei Cartwright, 1944 | Sand stargazer |
| Phyllophaga (Phyllophaga) zavalana Reinhard, 1946 | Zavala Phyllophaga |
| Phyllophaga (Phytalus) bilobatata Saylor, 1939 | Impspringer |
| Phyllophaga (Phytalus) blanda Sanderson, 1958 | |
| Phyllophaga (Phytalus) georgiana Horn, 1885 | |
| Phyllophaga (Phytalus) nosa Blackwelder, 1944 | |
| Phyllophaga (Phytalus) obsoleta Blanchard, 1851 | |
| Phyllophaga obsoleta obsoleta | |
| Phyllophaga obsoleta vanalleri Schaeffer, 1927 | |
| Phyllophaga (Phytalus) omani Sanderson, 1937 | |
| Phyllophaga (Phytalus) pallida Horn, 1885 | |
| Phyllophaga (Phytalus) pruinosa Blanchard, 1851 | |
| Phyllophaga (Phytalus) sonora Saylor, 1939 | Impspringer |
| Phyllophaga (Phytalus) trichodes Bates, 1890 | Seaweed blenny |
| Phyllophaga (Tostegoptera) lanceolata Say, 1824 | |
| Phyllophaga (Triodonyx) bellamyi Warner and M..., 1992 | |
| Phyllophaga acuticeps Bates, 1888 | |
| Phyllophaga aegrotus Bates, 1888 | |
| Phyllophaga aequata Bates, 1888 | |
| Phyllophaga antennatus Smith, 1889 | |
| Phyllophaga beameri Sanderson, 1958 | |
| Phyllophaga bellami | |
| Phyllophaga compostela Robinson, 1948 | |
| Phyllophaga crinalis | |
| Phyllophaga dissimilis Chevrolat, 1865 | |
| Phyllophaga epigoea Wickham, 1903 | |
| Phyllophaga epulara Sanderson, 1958 | |
| Phyllophaga exorata Horn, 1887 | |
| Phyllophaga falsus LeConte, 1856 | |
| Phyllophaga gaigei Sanderson, 1948 | Lineated blenny |
| Phyllophaga generosa Horn, 1887 | |
| Phyllophaga georgianus Horn, 1885 | |
| Phyllophaga heterodoxa Horn, 1887 | |
| Phyllophaga hintoni Saylor, 1935 | |
| Phyllophaga hondura Saylor, 1943 | May beetle |
| Phyllophaga hysteropyga (Davis, 1920) | ⇒ Phyllophaga parvidens hysteropyga Davis, 1920 |
| Phyllophaga inopia (Sanderson, 1942) | ⇒ Phyllophaga beckeri Moser, 1921 |
| Phyllophaga integra Say, 1825 | |
| Phyllophaga iroides (Fall, 1929) | ⇒ Phyllophaga opaca Moser, 1918 |
| Phyllophaga knausi Schaeffer, 1907 | |
| Phyllophaga knochi Gyllenhall, 1817 | |
| Phyllophaga langeri Chapin, 1934 | |
| Phyllophaga mucoreus LeConte, 1856 | |
| Phyllophaga murrea (Sanderson, 1950) | ⇒ Phyllophaga elongata Linell, 1896 |
| Phyllophaga nigropicea Walker, 1866 | |
| Phyllophaga nitidula (LeConte, 1863) | ⇒ Phyllophaga maculicollis LeConte, 1863 |
| Phyllophaga obtusus LeConte, 1856 | |
| Phyllophaga onchophora Chapin, 1932 | |
| Phyllophaga opacita (Reinhard, 1939) | ⇒ Phyllophaga arcta Horn, 1887 |
| Phyllophaga pallidus Horn, 1885 | |
| Phyllophaga plenus Fall, 1932 | |
| Phyllophaga puberula Jacquelin du..., 1856 | Beetle |
| Phyllophaga sandersonia Saylor, 1939 | |
| Phyllophaga scoparius LeConte, 1856 | |
| Phyllophaga sociatus Horn, 1878 | |
| Phyllophaga sodialis Reinhard, 1940 | |
| Phyllophaga subspinosa Harris, 1826 | |
| Phyllophaga suttonana Reinhard, 1939 | |
| Phyllophaga texanus LeConte, 1856 | |
| Phyllophaga timidus Horn, 1878 | |
| Phyllophaga uteana Tanner, 1928 | |
| Phyllophaga vanalleri Schaeffer, 1927 | |
| Phyllophaga vexatus Horn, 1885 | |
| Phyllophaga villifrons LeConte, 1856 | |
| Phyllophaga yucana Saylor, 1937 | |
| Plectrodes pubescens G. Horn, 1867 | Eastern field wireworm |
| Polylamina pubescens Cartwright, 1939 | Wooly Gulf dune scarab |
| Polyphylla (Polyphylla) anteronivea Hardy, 1978 | Saline Valley snow-front June beetle |
| Polyphylla (Polyphylla) arguta Casey, 1914 | |
| Polyphylla (Polyphylla) avittata Hardy, 1978 | Spotted Warner Valley Dunes June beetle |
| Polyphylla (Polyphylla) barbata Cazier, 1938 | Mount Hermon June Beetle |
| Polyphylla (Polyphylla) brownae Young, 1986 | |
| Polyphylla (Polyphylla) cavifrons LeConte, 1854 | |
| Polyphylla (Polyphylla) comes Casey, 1914 | |
| Polyphylla (Polyphylla) crinita LeConte, 1856 | Aquatic oligochaete worm |
| Polyphylla (Polyphylla) decemlineata Say, 1823 | Ten-lined June Beetle |
| Polyphylla (Polyphylla) devestiva Young, 1966 | |
| Polyphylla (Polyphylla) diffracta Casey, 1891 | |
| Polyphylla (Polyphylla) donaldsoni Skelley, 2005 | Donaldson´s Lined June Beetle |
| Polyphylla (Polyphylla) erratica Hardy & Andrews, 1978 | Death Valley June Beetle |
| Polyphylla (Polyphylla) gracilis Horn, 1881 | Slender Polyphyllan Scarab Beetle |
| Polyphylla (Polyphylla) hammondi LeConte, 1856 | Aquatic oligochaete worm |
| Polyphylla (Polyphylla) hirsuta Van Dyke, 1933 | |
| Polyphylla (Polyphylla) mescalerensis Young, 1988 | Two-eyed blenny |
| Polyphylla (Polyphylla) modulata Casey, 1914 | |
| Polyphylla (Polyphylla) monahansensis Hardy, 1978 | Molly miller |
| Polyphylla (Polyphylla) multimaculata Hardy, 1981 | |
| Polyphylla (Polyphylla) nigra Casey, 1914 | |
| Polyphylla (Polyphylla) nubila Van Dyke, 1947 | Atascadero June Beetle |
| Polyphylla (Polyphylla) occidentalis Linnaeus, 1767 | |
| Polyphylla (Polyphylla) petitii Guérin-Ménev..., 1844 | |
| Polyphylla (Polyphylla) pottsorum Hardy, 1978 | Molly miller |
| Polyphylla (Polyphylla) pubescens (Cartwright, 1939) | ⇒ Polylamina pubescens Cartwright, 1939 |
| Polyphylla (Polyphylla) ratcliffei Young, 1986 | |
| Polyphylla (Polyphylla) rugosipennis Casey, 1914 | |
| Polyphylla (Polyphylla) sobrina Casey, 1914 | |
| Polyphylla (Polyphylla) squamiventris Cazier, 1939 | |
| Polyphylla (Polyphylla) stellata Young, 1986 | Delta June beetle |
| Polyphylla (Polyphylla) variolosa Hentz, 1830 | Variegated June Beetle |
| Polyphylla (Polyphylla) woodruffi Skelley, 2005 | Panhandle beach scarab |
| Polyphylla aeolus La Rue, 1998 | |
| Polyphylla anivallis La Rue, 2016 | |
| Polyphylla devestita Young, 1966 | |
| Polyphylla dubia (Hatch, 1972) | ⇒ Polyphylla petitii Guérin-Ménev..., 1844 |
| Polyphylla koso La Rue, 2016 | |
| Polyphylla morroensis La Rue, 2016 | |
| Polyphylla nubilla | |
| Polyphylla starkae Skelley, 2009 | Auburndale scrub scarab |
| Polyphylla uteana (Tanner, 1928) | ⇒ Polyphylla diffracta Casey, 1891 |
| Rhizotrogus (Amphimallon) majalis Razoumowsky, 1789 | European chafer |
| Thyce deserta Hardy, 1974 | |
| Thyce squamicollis LeConte, 1856 | Aquatic oligochaete worm |
