Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1321678

Chalcedon Checkerspot
Euphydryas chalcedona

Observation date: June 02, 2012
Submitted by: yhelfman
Specimen type: Photograph
Observation notes: feeding on thistle flower
Status: Resident
Verified by: Ken Davenport
Verified date: March 31, 2022
Coordinator notes: The name "Variable Checkerspot" assumes that Chalcedon, Colon and Anicia Checkerspots are the same species All 3 species occur in California, but only Chalcedon Checkerspots are in the Bay Area of those three-Ken Davenport
Checklist region(s): United States, California, Alameda County