Some kinds of Comb-Footed Spiders are 0.5 millimeters long and are among the smallest spiders in to world. They look as if they are part of the flower. Insects can't see them. Crab spiders wait for insects to approach the flower. Then they capture their prey.
Crab spiders can walk sideways and backwards like crabs.
That's how they got their name. The Bolas Spider does not trap its prey in a web. Instead, it spins a line of silk with a drop of sticky silk at the end. The spider swings the line of silk at an insect and traps it on the sticky ball. The Beautiful Orb Weavers include the Golden Silk Spider, The Marble Spider, and the Arrowhead-Shaped Micrathena.