Nathalis Iole, also known as the Dainty Sulphur or dwarf yellow, is from the Pieridae family. They have a wingspan of 1.9-2.5 cm making it the smallest pierid of their kind. Their eggs are yellow, the caterpillar is green with thin yellow stripes, occasionally with rosy-purple stripes, and the Chrysalis is small and green. They can be found in almost any open area including coastal plains, deserts, roadsides and waste areas. They fly low to the ground. There is only one other species in the genus and it is found in the isolated Sierra Nevada de Santa Marta mountain range in Northeastern Colombia. Some host plants include: Spanish needle, chickweed and green thread.