Coenonympha haydenii

(Edwards, 1872)

Hayden's ringlet

Hayden's ringlet is a narrowly in the . Despite its restricted geographic range, the maintains genetic diversity levels comparable to more widespread . genetic structure is driven primarily by geographic isolation and distance rather than specialization. The species shows a strong feeding preference for grasses over sedges, though this preference does not correlate with genetic differentiation among populations.

Coenonympha haydenii 45585202 by jrcagle. Used under a CC BY 4.0 license.

Coenonympha haydenii 45580930 by jrcagle. Used under a CC BY 4.0 license.

Coenonympha haydenii 142264762 by Laura Gaudette. Used under a CC BY 4.0 license.

Pronunciation

How to pronounce Coenonympha haydenii: /siːnəˈnɪmfə haɪˈdiːni.aɪ/

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Images

Distribution

North America; narrow with restricted range. Specific localities not documented in available sources, but show genetic structure indicating historical isolation and limited contemporary .

Diet

and feed on grasses; the has been observed to show strong preference for grasses relative to sedges.

Host Associations

grasses - Strong feeding preference documented
sedges - Consumed but less preferred than grasses

Behavior

preference assays indicate strong feeding preference for grasses over sedges, though this behavioral trait does not correlate with genetic structure.

More Details

Genetic diversity

Despite narrow , Hayden's ringlet exhibits genetic diversity comparable to non- . This finding challenges assumptions that restricted-range species necessarily have reduced genetic variation.

Population structure drivers

Geographic barriers to and isolation by distance are the primary drivers of genetic differentiation, not availability or local . Neither larval host preference nor potential host availability at sampling sites correlated with genetic structure.