© 2018-20 by Neil Henning Björklund

Palmer Cr Rd, Jackson Co, June 9

Chalcedona

Checkerspot

Euphydryas chalcedona

Size: Up to 2.75 inch wingspan

Key ID features:  Above black with alternating red and white spot bands separated by black lines.  HW below has red and white bands, which, from the margin run red-white-red-white-white. Submarginal spot band on dorsal HW has larger pale ivory spots than other similar species.  

Similar species: Edith's checkerspot has red-white-red-red-white band pattern on HW below.  Snowberry Checkerspot has smaller spots in the submarginal band on the dorsal HW.

Hostplant: Several species in the figwort family, including paintbushes (Castilleja), penstemons, and monkeyflowers.

Habitat: Mountains and high canyons. 

Range: Warner Mtns, southern Klamath Mtns and in Jackson and Josephine counties along the border with CA.

Season: Late April to early August

Abundance: Locally common 

 

Conservation Status: Secure