Field Guide

Land Invertebrates

Showing 1 - 8 of 8 results
Media
Click beetle resting on a brick wall
Species Types
Scientific Name
Approximately 1,000 species in North America
Description
Their streamlined shape is distinctive, but the behavior of click beetles is even more unique: Placed on their backs, these beetles flip suddenly into the air with an audible click.
Media
Earthworm on the surface of granular soil
Species Types
Scientific Name
About 175 species in North America
Description
Earthworms are familiar to just about everyone who digs in the soil. They play a major role in the nutrient cycling and structure of soils. There are many species. The most familiar ones in Missouri are nonnative.
Media
Common true katydid female on a leaf
Species Types
Scientific Name
About 250 species in North America north of Mexico
Description
Katydids are a family of insects that may also be called longhorned grasshoppers, because of their super-long antennae. Many resemble green leaves. Others are brown. Populations of some species may be bright pink.
Media
Red milkweed beetle eating a common milkweed leaf.
Species Types
Scientific Name
About 1,000 species in North America north of Mexico
Description
Longhorned beetles are elongated and cylindrical, with antennae that are at least half the length of the body — sometimes much longer. The larvae are grubs that bore in wood or other plants. Some are serious pests.
Media
Narceus Millipede crawling across gravel
Species Types
Scientific Name
More than 900 species in North America north of Mexico
Description
Millipedes, which have two pairs of legs per body segment, are harmless detritus-eaters, move slowly, and curl up defensively when harassed.
Media
A reddish centipede crawls over a rock
Species Types
Scientific Name
Estimated 4,000 species globally
Description
Soil centipedes are abundant, common, and harmless to humans. About all you have to do to find them is lift up stones and logs.
Media
photo of a male reddish-brown stag beetle
Species Types
Scientific Name
About 40 species in North America north of Mexico
Description
While stag beetles are not very colorful, they make up for it in pincers! Male stag beetles usually have enlarged, sometimes astonishing jaws. These “antlers” give rise to the common name.
Media
image of Xystodesmid Millipede crawling on a forest floor
Species Types
Scientific Name
8 tribes, with about 23 genera, in North America north of Mexico
Description
Millipedes in family Xystodesmidae often have bright colors that serve as a warning to potential predators that they may secrete foul or toxic substances.
See Also
Media
Photo of a Yellow-Collared Scape Moth
Species Types
Scientific Name
Cisseps fulvicollis
Description
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!
Media
image of Plume Moth on blade of grass
Species Types
Scientific Name
Nearly 150 species in North America north of Mexico
Description
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.
Media
Photo of an Isabella Tiger Moth
Species Types
Scientific Name
Pyrrharctia isabella
Description
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.