See text Thomisus is a genus of crab spiders (family Thomisidae) with around 142 species described.

The genus includes species that vary widely in their ecology, with some that are ambush predators that feed on insects visiting flowers.

[2] Studies suggest that bees are inclined to avoid a flower that contains a spider-sized object of a non-matching colour; whether this is specifically a mechanism for avoiding crab spiders, or simply that they are not attracted to flowers whose nectar guides are obscured however, is a more difficult question.

[3] The colour changes that such species can achieve are typically in ranges of white, pink, and yellow.

The evolutionary method of camouflage greatly increases the survivability and fitness of crab spiders.