Celastrina echo echo (W. H. Edwards, 1864), female - The Spring Azure aka Celastrina echo (W. H. Edwards, 1864) aka Celastrina argiolus echo (W. H. Edwards, 1864) aka Celastrina ladon echo (W. H. Edwards, 1864) aka The Echo Blue, Pacific Azure, and Western Spring Azure Fairview Peak, Lane Co., OR, July 11, 2009 © Donald H. Gudehus

Celastrina echo echo (W. H. Edwards, 1864), female - The Spring Azure Fairview Peak, Lane Co., OR, July 11, 2009 © Donald H. Gudehus

Celastrina echo echo (W. H. Edwards, 1864) - The Spring Azure 5.1 mi. down Baldy Ck. Rd. from Tyler Ck. Rd., Jackson Co., OR, June 11, 2007 © Donald H. Gudehus

Celastrina echo echo (W. H. Edwards, 1864), female - The Spring Azure Los Trancos Trail, Foothills Park, Santa Clara Co., CA, Mar. 19, 2009 © Donald H. Gudehus

Celastrina echo echo (W. H. Edwards, 1864), female - The Spring Azure Los Trancos Trail, Foothills Park, Santa Clara Co., CA, Mar. 19, 2009 © Donald H. Gudehus

Celastrina echo echo (W. H. Edwards, 1864) - The Spring Azure Arastradero Creek Trail, Arastradero Preserve, Palo Alto, CA, April 5, 2013 © Donald H. Gudehus

Celastrina echo echo (W. H. Edwards, 1864) - The Spring Azure Filoli Gardens, Woodside, San Mateo Co., CA, May 24, 2014 © Donald H. Gudehus