Ringlet
Guides
Coenonympha
heaths, ringlets
Coenonympha is a genus of brush-footed butterflies in the subfamily Satyrinae, containing species distributed across temperate regions of the Holarctic. Palearctic species are commonly called heaths, while Nearctic species are called ringlets. The genus exhibits complex evolutionary patterns involving hybrid speciation, with some species complexes showing homoploid hybrid speciation and extensive gene flow. Many species are habitat specialists associated with peatlands, salt marshes, or alpine meadows, and several are of conservation concern due to habitat degradation.
Coenonympha haydenii
Hayden's ringlet
Hayden's ringlet is a narrowly endemic brush-footed butterfly in the family Nymphalidae. Despite its restricted geographic range, the species maintains genetic diversity levels comparable to more widespread butterflies. Population genetic structure is driven primarily by geographic isolation and distance rather than host plant specialization. The species shows a strong feeding preference for grasses over sedges, though this preference does not correlate with genetic differentiation among populations.