Anthocharis julia prestonorum Stout, 2012;  Comments: W & SW CO, W of the divide TL: USA (Co).

Anthocharis julia prestonorum ALLOTYPE ♀ USA: COLORADO, Garfield County, Grizzly Creek Rest Area, Glenwood Canyon, 4.1 miles ENE of Glenwood Springs, (north side of Interstate 70), 6100 ft., ex larva collected 24-V-2008 reared on Descurainia pinnata, emerged 8-I-2009 [MGCL].   —   © Todd L. Stout