Subspecies

Euphydryas chalcedona chalcedona (Chalcedon checkerspot)

Euphydryas chalcedona chalcedona. Photo: (c) Elizabeth Boegel, some rights reserved (CC BY-NC)

iNaturalist • Wikipedia

The variable checkerspot or Chalcedon checkerspot (Euphydryas chalcedona) is a butterfly in the family Nymphalidae. It is found in western North America, where its range stretches from Alaska in the north to Baja California in the south and extends east through the Rocky Mountains into Colorado, Montana, New Mexico and Wyoming. The butterfly is usually brown or black with extensive white and yellow checkering and some red coloration on the dorsal wing. Adult wingspan is 3.2–5.7 cm…

— Wikipedia

Sightings

Where in Humboldt

Discussion

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