Crab spiders are non-web-building ambush predators whose coloration often matches substrates they are found upon. They are so-named because their first two legs which are held out to the side give them a crab-like appearance.
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See C. H. Hawes, In the Uttermost East (London, 1903).
(P. A. K.; J. T. BE.)
Based on an article from 1911 Encycloped ...