Crab spiders make up the Thomisidae family of the Araneae order. They are also commonly called "flower spiders" because they are most often found on flowers, lying in ambush for prey. Crab spiders do not build webs to trap prey, but are active hunters much like the jumping spiders (Salticidae). They are called crab spiders because of their first two pairs of legs, which are held out to the side giving them (with their flattened, angular bodies) a crab-like appearance. The spiders of Thomisidae are completely harmless to humans.

"Conscience is the inner voice that warns us that someone might be looking." -- H. L. Mencken