Spialia spio, the mountain sandman or Spio grizzled skipper, is a butterfly of the Hesperiidae family. It is found in tropical Africa and south-western Arabia. In South Africa it is found all over the eastern side of the country. The wingspan is 22–29 mm for males and 28–31 mm for females. Adults are on wing year round in warmer areas. In South Africa it is more common in warmer months. In cooler areas adults are on wing from August to April.