Pearl crescent

This is a very small butterfly.  The color caught my eye but so did the size. 

It's called a Pearl crescent.









From Wikipedia...

The pearl crescent (Phyciodes tharos) is a butterfly of North America. It is found in all parts of the United States except the west coast, and throughout Mexico and parts of southern Canada, in particular Ontario. The wingspan is from 21 to 34 mm.^[1] The species has several broods throughout the year, from April–November in the north, and throughout the year in the deep south and Mexico.