ORANGE SULPHUR:

Orange Sulphur is normally a form of butterfly and it is also known as the Alfalfa Butterfly and in its' larval stage, Alfalfa Caterpillar, is a butterfly of the Family Pieridae, which includes yellows and whites. It is found throughout North America and is a serious pest to Alfalfa crops. The larva feeds off various species in the Pea family Fabaceae and are usually only found feeding at night.