Locality: USA: CA; San Diego; coll. D. Rubinoff.

DNA number FS-b-969.

Originally misidentified as Euphilotes bernardino in Caterino et al. 2001; re-identified as Plebejus acmon by Vazrick Nazari and Christian B. Schmidt 2004.

Specimen used in study by:

MS Caterino, RD Reed, MM Kuo and FAH Sperling, 2001. A partitioned likelihood analysis of swallowtail butterfly Phylogeny (Lepidoptera: Papilionidae). Systematic Biology 50 (2001): 106-127).

V Nazari, EV Zakharov and FAH Sperling, 2007. Phylogeny, historical biogeography, and taxonomic ranking of Parnassiinae based on morphology and seven genes (Lepidoptera: Papilionidae). Molecular Phylogenetics and Evolution, 42: 131-156.