Unlike many spiders, Crab Spiders do not use a web to catch their prey. Instead, they sit motionless on a yellow or white flower with their crab-like front limbs outstretched, waiting to grab an unsuspecting insect who comes to feed on the flower's nectar. They can increase their chances of catching a meal by changing their colour to match that of the flower they are sitting on. Their size is around 10mm with the males being smaller than the females.