What is "coenonympha"

Coenonympha is a butterfly genus. It belongs to the Coenonymphina, a subtribe of the "browns" ( Satyrinae). The latter are a subfamily of the brush-footed butterflies ( Nymphalidae). As a rule, Palearctic species are colloquially called "heaths", while Nearctic ones are called "ringlets". Neither term is limited to members of this genus, however.