The spiders of the family Thomisidae are commonly called crab spiders. They are so-called because of the characteristic crablike attitude in which they hold the legs and because they can walk as readily sidewise or backward as forward. The first two pairs of legs are usually considerably longer and stouter than the third and fourth pairs. The tarsi are two-clawed. The eyes are small and arranged in two rows, both of which are almost always recurved.
Proceedings of the Iowa Academy of Science
©1919 Iowa Academy of Science, Inc.
Ressler, I. L.
"Thomisidae of the Ames Region,"
Proceedings of the Iowa Academy of Science, 26(1), 151-156.
Available at: https://scholarworks.uni.edu/pias/vol26/iss1/19