Field Guide

Land Invertebrates

Showing 11 - 20 of 51 results
Eastern cicada killer wasp on sandy surface
Eastern Cicada-Killer Wasp
Sphecius speciosus
The eastern cicada-killer wasp might be the scariest-looking wasp in our state. But it is not aggressive to people and is virtually harmless, unless handled roughly. Like other ground-nesting wasps, nests can be recognized by the mound of earth excavated by the female.
Glossy black spider wasp manipulating paralyzed spider
Spider Wasps
About 300 species in North America north of Mexico
People notice spider wasps when they notice a female lugging a captured spider to its doom. In most cases, she will drag the spider into a burrow, lay an egg on the spider, and then hunt for more spiders!
image of Black-and-Yellow Mud Dauber
Mud Daubers
Three genera: Sceliphron, Trypoxylon, and Chalybion
Mud daubers are among the most familiar solitary wasps. They belong to a number of related groups, but we call them all "mud daubers" because they all build their nests out of mud. One way to tell the different mud daubers apart is by the distinctive architecture they use.
Image of a red velvet ant
Velvet Ants
Nearly 500 species in North America north of Mexico
Velvet ants are not true ants. True ants are social insects, while velvet ants are a group of solitary wasps. Female velvet ants are wingless throughout their lives; males are winged.
image of Horse Fly on tree trunk
Horse and Deer Flies
Tabanus, Chrysops, and related genera
Meet the horse fly: Stealthily, one will land on your back, slice your skin, and lap your blood. By the time it starts to hurt and you swat at it, the painful, itchy welt is rising.
image of Caddisfly on leaf
Caddisflies
About 1,500 species in North America north of Mexico
Adult caddisflies are mothlike. Their larvae are aquatic and build portable, protective cases out of local materials, including grains of sand, bits of leaves and twigs, and other debris.
Photo of an adult stonefly on a leaf
Stoneflies
Nearly 700 species in North America north of Mexico
Stoneflies have a lot in common with mayflies, caddisflies, dragonflies, and dobsonflies: They begin life as aquatic larvae, then molt and become winged adults. Many fish find stoneflies irresistible, and anglers know it.
image of a Leafhopper on leaf
Leafhoppers
More than 3,000 species in North America north of Mexico
The leafhoppers are a large and diverse family of sap-sucking, hopping insects. You can distinguish them from similar groups of hoppers by the hind legs, which have at least one row of small spines on the hind tibiae (“shins”).
periodical cicada shown from the side
Periodical Cicadas
Magicicada spp.
Periodical cicadas live as nymphs for 13 or 17 years underground, and then emerge simultaneously to metamorphose into their adult form. Tremendous numbers of periodical cicadas, calling all at once, are a memorable event.
image of a Mydas Fly
Mydas Flies
About 80 species in North America
Mydas flies are quite large, and although they resemble wasps, they are harmless. Note that all true flies have only one pair of wings. Also note the clubbed antennae (unusual for flies).
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.