Orange Sulphur (LEP29) Colias eurytheme
This bright butterfly, common in summer over much of North America, has followed the spread of alfalfa. Hence it is often known as the Alfalfa Butterfly. The picture shows a female upper side, sunny orange with yellow-spotted black borders, black spot on forewing, and a red one on the hindwing. The males=s underside shows orange yellow with a row of brown dots and a silver spot. Drawing shows a pair on the flower of red clover.