The World Fauna of Aegialiini and Eremazini (Coleoptera, Scarabaeidae, Aphodiinae) presented in iconography, includes eleven genera with 73 known species inhabiting Nearctic, Palaearctic, Australian and Neotropical regions. The essential diagnoses of the genera and species with their synonyms, location of the name-bearing types, data on affinities, distribution and bionomics are associated with colour photographs of beetles and drawings of the pertinent morphological details. A testable hypothesis of relationships among genera and species is visualized on the phylogenetic trees, as well as documented fossils of extinct and extant species of the Aegialiini are listed and commented. The bibliography contains monographs, revisions and other descriptive publications dealing with taxonomy and biology of both tribes on the world basis.