From the NPS PORE website list.
The Two-banded Checkered Skipper (Pyrgus ruralis) is a species of skipper (family Hesperiidae). Subspecies lagunae is known by the common name Laguna Mountains Skipper. This subspecies is on the Endangered Species list. It is found from the mountains from British Columbia and Alberta to southern California, Arizona and New Mexico.
The Common Checkered-skipper (Pyrgus communis) is a species of butterfly in the Hesperiidae family. It is known as the frequently seen Pyrginae species in the northern United States by collectors and watchers alike.