Xysticus robinsoni

Xysticus robinsoni is a species of ground crab spider in the family Thomisidae, first described by Willis J. Gertsch in 1953. The species belongs to a genus of ambush predators characterized by their crab-like posture and enlarged front legs used to seize prey. Like other Xysticus species, it is likely a sit-and-wait predator that does not construct webs for prey capture. The species occurs in the United States and Mexico, though specific details about its biology remain poorly documented.