Phanaeus, the rainbow scarabs, is a genus of true dung beetles in the family Scarabaeidae, ranging from the United States to northern Argentina, with the highest species richness in Mexico. Depending
Phanaeus difformis pair (female below right) at dung in Rosamond Gifford Zoo, United States
Male Phanaeus adonis is found in Mexico (also ranging into far southern Texas), like almost half the species in the genus
Male Phanaeus amethystinus showing its iridescent blue color and horn on the head
Oxysternon festivum is a species of dung beetle of the scarab beetle family. It is a common, diurnal species from northeastern South America and Trinidad where it mostly inhabits forest.