Field Guide

Missouri has several species of ground crab spiders in the genus Xysticus. They are usually dull gray or brown with brown, white, or yellow markings. They typically live under bark or on the ground in leaf litter.

The whitebanded crab spider is a small, whitish-yellow or yellowish-brown crab spider commonly found in flower heads. Often its carapace is slightly greenish, with a broad whitish-yellow midband bordered by darker, thinner sides of yellowish brown.

The heptagonal orbweaver, Gea heptagon, builds its circular webs in vegetation only a few feet off the ground. When disturbed, it drops instantly to the ground below and turns a drab brown.

Foliage flower spiders are two genera of crab spiders. They are generally smaller than other crab spiders, and their carapaces, abdomens, and legs are spiny.

A wolf spider doesn't spin webs to catch its prey — it runs it down like a wolf! Spiders in this family have long legs and are usually gray, brown, black, or tan with dark brown or black body markings (especially stripes).

Daddy longlegs, or harvestmen, are familiar Missouri animals. They are not spiders, but opilionids. Unlike spiders, they have a fused body form and lack silk and venom glands.