Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1410355

Chalcedon Checkerspot
Euphydryas chalcedona

Observation date: April 23, 2025
Submitted by: Bob Patton
Specimen type: Photograph
Observation notes: sitting on rocky/sandy ground
Status: Resident
Verified by: Ken Davenport
Verified date: August 04, 2025
Coordinator notes: It may look like an Edith's Checkerspot but what you have according to the abdominal spots is a chalcedona near subspecies corralensis, known from northern Joshua Tree National Park. It is also often confused with Euphydryas anicia.-Ken Davenport