Field Guide

Land Invertebrates

Showing 1 - 10 of 98 results
Media
Male eastern Hercules beetle walking in grass
Species Types
Scientific Name
Dynastes tityus
Description
The eastern Hercules beetle is a breathtaking animal. Like its Greek-hero namesake, it is big and strong. Males have horns; females do not. Hercules beetles are harmless to people.
Media
Elongate-bodied springtail on a brown leaf
Species Types
Scientific Name
More than 8,000 species globally
Description
Springtails, like insects, have six legs, but these tiny rounded, oval, or elongated creatures that hop quickly into the air are not insects. They have a separate lineage and many structural differences.
Media
image of a Four-Spotted Owlfly
Species Types
Scientific Name
8 species in North America north of Mexico
Description
An owlfly looks like a dragonfly with a butterfly’s head. Dragonfly shaped and sized, they have long, clubbed antennae and large, bulging eyes. Look for them in summertime dusks and evenings.
Media
Photo of adult antlion with wings spread
Species Types
Scientific Name
More than 100 species in North America north of Mexico
Description
Adult antlions look something like drab damselflies. These insects are most familiar in their immature stages, called doodlebugs, which create pits in sand for trapping ants.
Media
Seven-spotted lady beetle on a flower
Species Types
Scientific Name
Nearly 500 species in North America north of Mexico
Description
Lady beetles are beloved for many reasons. Farmers like the way they devour injurious aphids and scale insects. Everyone else appreciates their bright colors and shiny, compact bodies.
Media
Photo of a Xysticus crab spider, tan individual
Species Types
Scientific Name
Xysticus spp.
Description
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.
Media
Image of a deceased pseudoscorpion on a US dime
Species Types
Scientific Name
Various species in the order Pseudoscorpionida
Description
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.
Media
Photo of an adult female field cricket
Species Types
Scientific Name
Gryllus spp., Acheta domesticus, and other in subfamily Gryllinae
Description
Field crickets and house crickets are celebrated singers. There are several species in Missouri.
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
Photo of a northern walkingstick on autumn dogwood leaves
Species Types
Scientific Name
Diapheromera femorata, Megaphasma denticrus, and others
Description
Walkingsticks are long, slender insects that are perfectly camouflaged to look like brown or green twigs. Most species are tropical, but some types are found in Missouri.
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.