Locality: USA: CA: Contra Costa County, below Mt. Diable main summit, 21 August 1997, collected by F. Sperling and J. Polwell.

DNA number FS-b-945.

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).