From the NPS PORE website list.
The fiery skipper (Hylephila phyleus) is a butterfly of the family Hesperiidae and are approximately 1 inch (2.5 cm) long. The males are orange or yellow with black spots while the females are dark brown with orange or yellow spots. The caterpillars are greenish pink with a black head. The caterpillars are often considered pests and can feed on bermudagrass, creeping bentgrass, and St. ...more ↓
Poanes melane, the Umber Skipper, is a butterfly of the Hesperiidae family. It is found in California (west of the Sierra Nevada Divide), southern Arizona, Baja California, the highlands of Mexico and Central America. The habitat consists of desert foothills, grassy areas, streamsides, roadsides, yards, parks and open oak woodland.
Atalopedes campestris (called the Sachem in the United States) is a small skipper. It is just over 1 inch long and is orange and brown. Females are slightly larger and have paler markings on the wings.
The Woodland Skipper (Ochlodes sylvanoides) is a butterfly of the Hesperiidae family. It is found from British Columbia south to southern California, east to Montana, Colorado and Arizona.
The Sandhill Skipper or Saltgrass Skipper (Polites sabuleti) is a butterfly in the Hesperiidae family. It is found from southern British Columbia and eastern Washington, south through California and northern Arizona to Baja California and east to south-eastern Wyoming, central Colorado and north-eastern New Mexico. It is an introduced species in Hawaii.