All (or nearly all?) individuals on this page are nominate palla.

PallaPallaUP.jpg
Sawmill Road (west of Lake Isabella), Kern County, CA, 5/30/2004.
PallaPallaUN.jpg
Sawmill Road (west of Lake Isabella), Kern County, CA, 5/30/2004.
CPalla.jpg
(Male) Sun Mountain Road (east of Crater Lake), Klamath County, Oregon, 7/3/2003.
CPalla.jpg
(Female) Soda Mountain Road, Jackson County, Oregon, 7/6/2003
NorthernCheckerspotFemale.jpg
(Female) Pine Mountain, Marin County, CA, 5/17/2003
NorthernCheckerspot.jpg
(Male) Pine Mountain, Marin County, CA, 5/17/2003