c. 70, see text Eurema is a widespread genus of grass yellow butterflies in the family Pieridae.
Species range from Asia, Africa, Australia, and Oceania, to the New World.
The type species is the North American barred yellow (Eurema daira).
Some species, such as the common African grass yellow (E. hecabe) have over 80 synonyms.
This is the price of being a widespread taxon, as well as a zoogeographical problem.