Field Guide

Land Invertebrates

Showing 1 - 10 of 101 results
Chinese mantis
Chinese Mantis
Tenodera sinensis (formerly T. aridifolia)
The Chinese mantis is a large, green and tan ambush predator. This nonnative insect is often called a “praying mantis” because the front legs resemble hands folded in prayer.
image of a boxelder bug
Eastern Boxelder Bug
Boisea trivittata
Notoriously numerous, boxelder bugs overwinter in nooks of tree bark and rocks, but they will settle for warm crannies of your house. The box elder tree is the food plant of this harmless insect.
Squash bug on sand
Squash Bugs
Anasa tristis and other Anasa spp.
Sooner or later, most Missouri gardeners learn about squash bugs, which feed on the foliage of squash, pumpkins, melons, cucumbers, and other plants in the squash family.
Photo of a male Banded Pennant dragonfly
Dragonflies
Species in the suborder Anisoptera
Like damselflies, dragonflies have long bodies, two pairs of long, membranous, finely veined wings, and predaceous aquatic larvae. Dragonflies typically hold their wings stretched outward, horizontally.
Photo of a Xysticus crab spider, tan individual
Ground Crab Spiders
Xysticus spp.
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.
Marbled orbweaver spider in web
Angulate and Roundshouldered Orbweavers
Araneus spp.
Missouri's Araneus spiders, called angulate and roundshouldered orbweavers, can be hard to identify to species. Most have camouflage patterns, and they all make characteristic, delicate, wheel-shaped webs to catch prey.
Photo of female heptagonal orbweaver in web.
Heptagonal Orbweaver
Gea heptagon
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.
Photo of a spotted orbweaver or barn spider, Neoscona crucifera, with black background
Spotted Orbweavers
Neoscona spp.
Missouri's Neoscona spiders, called spotted orbweavers, can be hard to identify to species. Most have camouflage patterns, and they all make the characteristic, delicate, wheel-shaped webs to catch prey.
Image of a deceased pseudoscorpion on a US dime
Pseudoscorpions
Various species in the order Pseudoscorpionida
Pseudoscorpions are unusual little arachnids. They look something like tiny scorpions but with a rounded (and nonvenomous) hind end. They're common but often overlooked.
Photo of a tan jumping spider
Tan Jumping Spider
Platycriptus undatus
The tan jumping spider usually lives on tree trunks. Its gray, tan, and brown coloration camouflages it against tree bark. There is usually an undulating pattern on the abdomen.
See Also
Photo of a Yellow-Collared Scape Moth
Yellow-Collared Scape Moth
Cisseps fulvicollis
The yellow-collared scape moth is more often “orange-collared.” And whether you think it looks more like a firefly or a wasp, it’s still a moth!
image of Plume Moth on blade of grass
Plume Moths
Nearly 150 species in North America north of Mexico
Slim, delicate plume moths are instantly recognizable by their T-shaped silhouette, long legs, and muted shades of tan and brown. It can be hard to separate the various species.
Photo of an Isabella Tiger Moth
Isabella Tiger Moth (Woolly Bear; Woolly Worm)
Pyrrharctia isabella
Not many people know the adult Isabella tiger moth when they see one, but we’re all acquainted with its caterpillar, the woolly worm, or woolly bear.

About Land Invertebrates in Missouri

Invertebrates are animals without backbones, including earthworms, slugs, snails, and arthropods. Arthropods—invertebrates with “jointed legs” — are a group of invertebrates that includes crayfish, shrimp, millipedes, centipedes, mites, spiders, and insects. There may be as many as 10 million species of insects alive on earth today, and they probably constitute more than 90 percent all animal species.