The large Western Tiger Swallowtail is fairly common through western North America in meadows, gardens, woodlands or roadsides often seen "puddling" in wet spots. They seem to nectar on a wide variety of flowers; the horticultural alliums being a favorite. The larvae of this species has funky, colourful eyespots - I will try and find one and post a photograph; but until then, here are some by Jeremy Tatum http://facweb.furman.edu/~snyderjohn/tatum/056-059.htm in the Butterflies & Moths of Vancouver Island. The caterpillars of Papilio rutulus feed on deciduous trees and shrubs, including willows and ocean spray.
Two biologists on a beautiful property armed with cameras, smart phones and a marginal knowledge of websites took up the challenge of documenting one species a day on that property. Join along! Posts and photographs by Leah Ramsay and David Fraser (unless otherwise stated; started January 1, 2014.