The Southern Skipperling is smaller ( it is also the smallest skipper in the United States of America ) . The underside of the bottom wing has a white ray across the width of the wing . The Southern Skipperling is smaller than the Least Skipper ( it is also the smallest skipper in the United States ) and the underside of the hind wing has a white ray which runs the width of the hind wing from the basal area to the margin .