alfalfa butterfly

== English == === Noun === alfalfa butterfly (plural alfalfa butterflies) A North American pierid butterfly, Colias eurytheme, the caterpillars of which feed on various plants in the pea family, Fabaceae, including alfalfa. === Further reading === Colias eurytheme on Wikipedia.Wikipedia Colias eurytheme on Wikispecies.Wikispecies Category:Colias eurytheme on Wikimedia Commons.Wikimedia Commons