The Alfalfa Butterfly
Colias eurytheme Boisduval
- The body of the Alfalfa Butterfly is a dark brown-green. All four wings are yellow with some orange coloration on each. There is a distinctive band of black located laterally on all four wings. On the two upper wings, there is a black spot in the center. On the two lower wings, there is a orange spot in the center. The female is distinguished from the male by having yellow markings within the black bands at the edges of the four wings (Klots, 1979, 183).
- The Alfalfa Butterfly is 1.6-2.4 inches in width (Klots, 1979, 183), and 1.8-2.8 inches in height.
- The caterpillar feeds on Alfalfa and on White Clover (Klots, 1979, 184).
- Geographic Range:
- The Alfalfa Butterfly is found from the Maritime Provinces, west the Pacific, south into Florida and Mexico (Klots, 1979, 184).
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