Euphydryas chalcedona colon (W. H. Edwards, 1881) - The Chalcedona Checkerspot or Variable Checkerspot F.S. Rd. 15, Willamette N.F., Lane Co., OR, July 19, 2008 © Donald H. Gudehus

Euphydryas chalcedona colon (W. H. Edwards, 1881) - The Chalcedona Checkerspot or Variable Checkerspot Fairview Peak, Lane Co., OR, July 11, 2009 © Donald H. Gudehus

Euphydryas chalcedona colon (W. H. Edwards, 1881) - The Chalcedona Checkerspot or Variable Checkerspot Iron Mt., Willamette NF, OR, July 25, 2009 © Donald H. Gudehus

Euphydryas chalcedona colon (W. H. Edwards, 1881) - The Chalcedona Checkerspot or Variable Checkerspot Iron Mt., Willamette NF, OR, July 25, 2009 © Donald H. Gudehus

Euphydryas chalcedona colon (W. H. Edwards, 1881) - The Chalcedona Checkerspot or Variable Checkerspot Iron Mt., Willamette NF, OR, July 25, 2009 © Donald H. Gudehus

Euphydryas chalcedona colon (W. H. Edwards, 1881) - The Chalcedona Checkerspot or Variable Checkerspot Iron Mt., Willamette NF, Linn Co., OR, July 28, 2012 © Donald H. Gudehus

Euphydryas chalcedona colon (W. H. Edwards, 1881) - The Chalcedona Checkerspot or Variable Checkerspot Butterfly being eaten by a female Johnson's Red-backed Jumping Spider - Phidippus johnsoni. Bohemia Mt., Lane Co., OR, July 7, 2007 © Donald H. Gudehus