© 2018-19 by Neil Henning Björklund

Illinois River, Josephine Co, May 5

California Marble

Euchloe hyantis

AKA Pearly Marble

Size: 1.25 - 1.5 inches wingspan

Key ID features:  Above, off-white with black pattern on FW tip and thin black rectangle in forewing cell with no white scaling. Below, green marbling with yellowish wash against white background and yellow veins.

Similar species:  Large Marble is notably larger. Desert Marble has pearly or shiny look to white areas, and is not found in Josephine County.

 

Host plant: Streptanthus (Jewel-flower) and possibly Arabis and Draba species.

Habitat: Open montane and foothill slopes, dry meadows and canyons.

Range: Primarily found in Josephine County near Jewel-flower.

Season: Mid-March to early June

Abundance: Common

 

Conservation Status: Secure