Field Guide

Land Invertebrates

Showing 1 - 10 of 110 results
Media
image of an Alderfly
Species Types
Scientific Name
Sialis spp.
Description
Adult alderflies are usually black, dark brown, or gray. They look a lot like stoneflies but are more closely related to fishflies and dobsonflies.
Media
Jagged ambush bug on a plant stem
Species Types
Scientific Name
Phymata spp. and others in subfamily Phymatinae (ambush bugs)
Description
Ambush bugs are a subfamily of assassin bugs. They’re chunky, small insects with powerful grasping forelegs. They hide motionless in flowers waiting for prey to venture near.
Media
image of a Thread-Waisted Wasp
Species Types
Scientific Name
Ammophila spp.
Description
There are more than 60 species of ammophila wasps in North America. They tend to be black, with orange on the abdomen. They are but one genus in the thread-waisted wasp family.
Media
Andrenid or miner bee collecting pollen on a flower
Species Types
Scientific Name
More than 1,200 species in North America north of Mexico
Description
Andrenid bees, also called mining bees, are solitary ground-nesters. Most are specialist pollinators whose life cycle is timed to correspond precisely to the blooming of specific flowers.
Media
image of Antlion Larva on rock
Species Types
Scientific Name
More than 100 species in North America north of Mexico
Description
Antlions, also called doodlebugs, are most familiar in their immature stages, when they create pits in sand in which to trap ants. The adults look something like drab damselflies.
Media
Acrobat ants on a leaf
Species Types
Scientific Name
More than 700 species in North America
Description
Ants are everywhere! They outnumber us a million to one. These colonial insects are familiar to everyone on Earth. Their lives are endlessly fascinating.
Media
Longhorn bee visiting a flower, viewed from side
Species Types
Scientific Name
About 1,000 species in North America north of Mexico
Description
Many apid bees are well-known. This family includes the familiar honeybee, bumblebees, and carpenter bees, plus many that are less well-known. With few exceptions, most of Missouri's apid bees are native, solitary species.
Media
Photo of a female arabesque orbweaver spider
Species Types
Scientific Name
Neoscona arabesca
Description
The arabesque orbweaver is a common orb-weaving spider in Missouri. The coloration is quite variable, but the slanting dark marks on the abdomen help to identify it.
Media
Photo of an armored harvestman walking on the ground
Species Types
Scientific Name
Members of suborder Laniatores
Description
Armored harvestmen have spines on their fingerlike mouthparts (pedipalps). Unlike other harvestmen, members of this suborder of so-called daddy longlegs do not usually have long legs.
Media
Photo of a triangle orbweaver, or arrowhead spider
Species Types
Scientific Name
Verrucosa arenata
Description
In late summer and fall, woodland hikers can count on walking into the arrowhead spider's web. These webs are delicate circles that help the spider snare tiny flying insects.
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.