Running Crab Spiders (Philodromidae)

Running crab spiders are 3-8 mm in length. They are cursorial predators, most frequently found in trees, although Tibellus is often swept from tall grass. They closely resemble crab spiders (Thomisidae), but the backmost two pairs of legs are roughly the same size as the frontmost. In Ebo, the second pair of legs is about twice as long as the other pairs. California is home to about 40 species in 5 genera.



More information about Philodromidae

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Last updated: Mar 7, 2007