The Nemeobiinae was erected to encompass the entirety of the 7 percent of Riodinids that reside within the
Old World. This has remained true, however, recent studies have placed the New World subfamily of
Euselasiinae within the Nemeobiinae, with
Corrachia and
Styx believed to be
apomorphic Nemeobiines. The greater
Riodinid family is believed to have evolved in the
Neotropics and migrated to the
Old World through the
Bering land bridge during the
Oligocene. Of the
Old World members of the Nemeobiinae, encompassing around 13 genera and 110 species, the majority (60 species) are concentrated in the
Indomalayan realm of
Southeast Asia. The remainder are found within the
Afrotropical realm with 15 species, the
Australasian realm with 28 (
Praetaxila), and 1 species found in
Europe (
Hamearis). A single member of the subfamily exists on the continent of
Australia,
Praetaxila segecia. While most members of the Nemeobiinae are found within the
tropics, a handful are found within
temperate areas (
Hamearis,
Polycaena and
Takashia). ==Genera==