Celastrina echo echo (W. H. Edwards, 1864);  Comments: nigrescens Fletcher, 1903 is a homonym TL: USA (Ca).

Celastrina echo nigrescens ♂ USA: OREGON: Crook Co.,
creek N of Hwy 26, 2.7 mi SW jct. Little Hay Cr. Rd. 4500', 13-V-03