|  | XType genus. Aphodius Illiger 1798: 15.
 Diagnosis. Elytra with basal margin not bordered. Femora not grooved at front or hind margin. Middle and hind tibiae with two or more transverse carinae. Pygidium smooth, unmodified. Metatibial apical spurs set apart. Metatarsal insertion set somewhat intermediately; tarsus can articulate between spurs. Classification status. Worldwide, the classification of genus-level taxa (genera and subgenera) has been under much discussion. Few cladistic analyses have been published, and none are meaningful on a worldwide basis. Much work remains to be undertaken, using both morphological and molecular data, before any classification of genus-level taxa can be settled upon. In order to present the most information with the fewest evolutionary implications, all generic-level taxa are present as full genera.
 Much work has recently been accomplished or is underway on the New World Aphodiini fauna. Gordon and Skelley (2007) reviewed the fauna of the US and Canada, Smith and Skelley (2007) reviewed member found in southern South America, and M. Dellacasa et al. (multiple works) are continuing to revise the Mexican, Central and South American taxa.
 Distribution. Aphodiini are found worldwide, with a surprising paucity in South America. Composition. Worldwide, there are approximately 170 genera and over 2000 species in the Tribe Aphodiini. In the New World there are presently 72 genera and 349 species recognized. New World genera of Aphodiini  (click on generic names for information)Acanthaphodius Schmidt 1909
 Acrossus Mulsant 1842
 Agoliinus Schmidt 1913
 Agrilinus (s.l.) Musant and Rey 1870
 Aphodius Illiger 1798
 Ballucus Gordon and Skelley 2007
 Blackburneus Schmidt 1913
 Calamosternus Motschulsky 1859
 Caligodorus Gordon and Skelley 2007
 Cephalocyclus Dellacasa, Gordon, and Dellacasa 1998
 Chilothorax Motschulsky 1859
 Cinacanthus Schmidt 1913
 Coelotrachelus Schmidt 1913
 Colobopterus Mulsant 1842
 Cryptoscatomaseter Gordon and Skelley 2007
 Dellacasiellus Gordon and Skelley 2007
 Dialytellus Brown 1929
 Dialytes Harold 1869
 Dialytodius Gordon and Skelley 2007
 Diapterna Horn 1887
 Drepanocanthoides Schmidt 1913
 Eupleurus Mulsant 1842
 Ferrerianus M. Dellacasa, G. Dellacasa and Gordon 2007
 Flaviellus Gordon and Skelley 2007
 Geomyphilus Gordon and Skelley 2007
 Gonaphodiellus Schmidt 1913
 Haroldiellus Gordon and Skelley 2007
 Hornietus Stebnicka 2000
 Imelda M. Dellacasa, Gordon and Dellacasa 2002
 Irrasinus Gordon and Skelley 2007
 Jalisco Dellacasa, Gordon and Dellacasa 2004
 Labarrus Mulsant and Rey 1870
 Lechorodius Gordon and Skelley 2007
 Liothorax Motschulsky 1859
 Luxolinus Gordon and Skelley 2007
 Maculaphodius Gordon and Skelley 2007
 Melinopterus Mulsant 1842
 Mendidius Harold 1868
 Merogyrus Gordon and Skelley 2007
 Neodiapterna Dellacasa 1986
 Neotrichonotulus Dellacasa M, Gordon and G. Dellacasa 2004
 Nialaphodius Kolbe 1908
 Orodaliscoides Schmidt 1913
 Oscarinus Gordon and Skelley 2007
 Otophorus Mulsant 1842
 Oxyomus Dejean 1833
 Paranimbus Schmidt 1913
 Pardalosus Gordon and Skelley 2007
 Phaeaphodius Reitter 1892
 Pharaphodius Reitter 1892
 Planolinellus Dellacasa and Dellacasa 2005
 Planolinoides Dellacasa and Dellacasa 2005
 Planolinus Mulsant and Rey 1869
 Pleuraphodius Schmidt 1913
 Podotenus Schmidt 1913
 Pseudagolius Schmidt 1913
 Pseudogonaphodiellus Dellacasa, Gordon, and Dellacasa 2007
 Pseudopodotenus G. Dellacasa 1990
 Rugaphodius Gordon and Skelley 2007
 Scabrostomus Gordon and Skelley 2007
 Schaefferellus Gordon and Skelley 2007
 Setodius Gordon and Skelley 2007
 Stenotothorax Schmidt 1913
 Strigodius Gordon and Skelley 2007
 Symphodon Schmidt 1913
 Tetraclipeoides Schmidt 1913
 Teuchestes Mulsant 1842
 Trichaphodiellus Schmidt 1913
 Trichaphodius Schmidt 1913
 Trichonotuloides Balthasar 1945
 Trichonotulus Bedel 1911
 Xenoheptaulacus Hinton 1934
 Xeropsamobeus Saylor 1937
 References:Dellacasa, G., P.Bordat and M.Dellacasa. 2001. A revisional essay of world genus-group taxa of Aphodiinae (Coleoptera Scarabaeoidea: Aphodiidae). Memorie della Società Entomologica Italiana [2000] 79: 1-482.
 Gordon, R. D., and P. E. Skelley. 2007. A monograph of the Aphodiini inhabiting the United States and Canada (Coleoptera: Scarabaeidae: Aphodiinae). Memoirs of the American Entomological Institute 79: 580 pp.
 Skelley, P. E., M. Dellacasa, G. Dellacasa, and R. D. Gordon. 2007. Checklist of the Aphodiini of Mexico, Central and South America (Coleoptera: Scarabaeidae: Aphodiinae). Insecta Mundi 0014: 1-14.
 Smith, A. B. T., and P. E. Skelley. 2007. A review of the Aphodiinae (Coleoptera: Scarabaeidae) of southern South America. Zootaxa 1458: 1-80. [http://unsm-ento.unl.edu/platycoeliams.htm]
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