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Photo#709326
Rocky Mountain Parnassian caterpillar - Parnassius smintheus

Rocky Mountain Parnassian caterpillar - Parnassius smintheus
Big Conrad Gulch below Little Caribou Lake, Trinity Alps, Siskiyou County, California, USA
July 16, 2012
Subspecies sternitzkyi, feeding on Sedum obtusatum ssp. boreale

was it feeding on that plant?
would explain why i could never find any caterpillars...i could have sworn they ate belleding heart.

 
Parnassius foodplants
Yes, P. smintheus feeds on Sedum, and P. clodius feeds on Dicentra (bleeding heart).

Sweeet!
Only our second image of a Parnassian caterpillar!

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