''Anisocanthon pygmaeus'' is a species of true dung beetle that is found in Entre Ríos, Santa Fe and

Buenos Aires Province Buenos Aires (), officially the Buenos Aires Province (''Provincia de Buenos Aires'' ), is the largest and most populous Argentine province. It takes its name from the city of Buenos Aires, the capital of the country, which used to be part of th ...

s in Argentina, and is believed to also be found in

Rio Grande do Sul Rio Grande do Sul (, , ; "Great River of the South") is a Federative units of Brazil, state in the South Region, Brazil, southern region of Brazil. It is the Federative_units_of_Brazil#List, fifth-most-populous state and the List of Brazilian st ...

in Brazil. It has not been recorded in the last 60 years.

References

Deltochilini Endemic fauna of Argentina Beetles described in 1911 {{Scarabaeinae-stub