Field Guide

Land Invertebrates

Showing 81 - 90 of 141 results
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.
Media
Female straight-lanced meadow katydid resting on a leaf, viewed from side
Species Types
Scientific Name
Conocephalus strictus
Description
The straight-lanced meadow katydid is common in pastures, roadsides, and crop lands. The female's swordlike ovipositor is longer than the rest of her body. The male's song is a relatively soft buzz that sometimes breaks into a series of rapid, skipping tics.
Media
Photo of a dull colored spittlebug adult on a twig
Species Types
Scientific Name
Lepyronia quadrangularis
Description
The diamondback spittlebug is common in weedy areas. The larvae live protected in spitty masses of foam. The adults are drab and well camouflaged, so few people notice them.
Media
Photo of a spotted orbweaver or barn spider, Neoscona crucifera, with black background
Species Types
Scientific Name
Neoscona crucifera
Description
A widespread species, the barn spider commonly builds its webs in woods and on the eaves of barns, houses, and similar structures.
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
image of Nut Weevil on wood
Species Types
Scientific Name
Curculio spp.
Description
Nut and acorn weevils, in genus Curculio, have very long, narrow beaks and chunky bodies. Females bore tiny holes into developing acorn, hickory, or other nuts, and deposit their eggs within.
Media
Photo of a dotted wolf spider
Species Types
Scientific Name
Rabidosa punctulata
Description
The dotted wolf spider has a solid brown stripe running down the middle of the abdomen, seen from above. Like other wolf spiders, females have strong maternal instincts, carrying their spiderlings around on their back until they can be on their own.
Media
Image of a speckled wolf spider
Species Types
Scientific Name
Tigrosa aspersa
Description
A speckled wolf spider usually seems larger than it actually is. It's one of Missouri's more common species of wolf spiders. Mothers have remarkable maternal instincts and are often seen carrying their young around on their abdomen.
Media
Photo of wolf spider with young
Species Types
Scientific Name
Rabidosa rabida
Description
The rabid wolf spider, despite its scary name, is harmless to people and is absolutely not rabid. It commonly hides in leaf litter and sometimes gets into houses.
Media
Tachinid fly visiting a mint flower
Species Types
Scientific Name
About 1,350 species in North America north of Mexico
Description
Tachinid flies are one of the largest families of flies. They are parasitic flies whose larvae are parasitoids of other insects. They look a lot like house flies, blow or bottle flies, wasps, or bees. Many are very bristly.
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.