Euchloe lotta, the desert marble, is a species of butterfly that occurs in the interior of British Columbia, Canada.

[1] It is mostly white with black markings on the topside of the forewing tips and body.

The underside has greenish-grey veins especially in the hindwing.

[1] The desert marble's flight season in North America is from April to May.

[1] It inhabits sagelands, deserts, juniper woodland, dry, rocky areas, dry ravines, and canyon walls.