Euphydryas chalcedona macglashanii
(Rivers, 1888)
Euphydryas chalcedona macglashanii is a of checkerspot in the Nymphalidae. It belongs to a whose members are known for their distinctive orange and black checkered wing patterns. The subspecies is currently recognized as a synonym under the genus Occidryas in some taxonomic treatments. Checkerspot butterflies in this group are associated with specific plants and have been subject to conservation concern due to loss and climate change impacts across western North America.
Pronunciation
How to pronounce Euphydryas chalcedona macglashanii: /juːˈfaɪdrɪəs kælsɪˈdəʊnə ˌmækˈɡlæʃəˌnaɪ/
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More Details
Taxonomic Status
GBIF records this as a SYNONYM with the accepted name listed under the Occidryas as Occidryas chalcedona. iNaturalist retains it under Euphydryas. This reflects ongoing taxonomic debate regarding the generic placement of North American checkerspot formerly grouped in Euphydryas.
Conservation Context
Related checkerspot including Euphydryas editha have shown significant declines in western North America, with climate change identified as a major contributing factor. Research published in Science (2021) documented a 1.6% reduction in numbers across the western United States over four decades, with warming fall temperatures particularly impacting species in this group.