Euchromius californicalis, the California grass-veneer, is a moth in the family Crambidae. It was described by Alpheus Spring Packard in 1873.[1] It is found in North America, where it has been recorded from British Columbia, Alberta, Washington, Idaho, Montana, North Dakota, South Dakota, Oregon, Wyoming, California, Nevada, Utah, Colorado and New Mexico.[2] The habitat consists of grasslands.
The wingspan is 20–23 mm for males and 14–22 mm for females.[3] The forewings are light brown with two yellow transverse lines. Adults are on wing from May to August.[4]