Orange Sulphur,  Colias eurytheme  <LEP29>

 

     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.