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Spiders in the family Philodromidae are commonly
known as running crab spiders, after their speed and the fact they run
sideways, like their seafood counterparts. One distinguishing
characteristic of the running crab spiders is their legs: unlike crab
spiders in the family Thomisidae, the Philodromids' second set of legs
are the longest. These spiders are often found indoors, living in the
corners of ceilings and walls. However, these spiders do not build webs
- the cobwebs in the picture below are the product of another spider,
the cobweb spider Steatoda. Running crab spiders hunt prey as do
jumping spiders and do not rely on webs to capture food. |