One player is the spider, they are blindfolded and stand in the circle of players. One person is chosen to be the insect, they must choose somewhere to stand in the circle, and tap their feet, they cannot move from that place as they are caught in the web. The spider must then track down the insect, once the spider catches the insect the insect becomes the spider. The game continues until everyone has been the spider.
Source: From the original site.