Coordinator notes: The submitter correctly identified this anglewing as P. gracilis. I see that P. zephyrus is also shown among the species in the computer list so I selected it as that is the correct subspecies. It has been accepted for some time that P. gracilis and P. zephyrus are the same species. As noted, zephyrus is the western subspecies found in most of the mountain ranges that have raparian forest in the western U.S. I'll make a note to discuss this with Kelly Lotts, the site manager. Nice photo.