Size: Up to 1.5 inch wingspan
Key ID features: Above, rows of orange and light orange spots separated by black. FW margin slightly indented. HW above with submarginal band of small black dots circled with orange. Below, bands of orange, cream and white with brown patches, postmedian yellow-tan band with small brown dots. Knobs on anntennae mostly orange.
Similar species: Range does not overlap with Pale Crescent, P. orseis is larger than Field or Mylitta.
Host plant: Thistles including Cirsium cymosum and C. andersonii.
Habitat: Dry hillsides, streamsides and canyons.
Range: Southern Siskiyou Mtns, Warner Mtns.
Season: Late March to early August
Conservation Status: Secure