Field Guide

Land Invertebrates

Showing 1 - 10 of 45 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
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
image of Assassin Bug crawling on a leaf
Species Types
Scientific Name
Nearly 200 species in North America north of Mexico
Description
Assassin bugs are usually black or brown, with an elongated head bearing a single, clawlike tube used for piercing and injecting venom into their prey. They are common in Missouri.
Media
image of Bee Fly on leaf
Species Types
Scientific Name
About 800 species in North America
Description
Resembling bees, or sometimes big, fuzzy mosquitoes, bee flies are a family of true flies and are not bees at all. Lacking the ability to sting, their bee mimicry helps them avoid many would-be predators.
Media
Black saddlebags dragonfly perched on an upright twig
Species Types
Scientific Name
Tramea lacerata
Description
The black saddlebags is a dragonfly with memorable markings. Two dark blotches on each hindwing look like saddlebags.
Media
Male blue corporal dragonfly resting on a weathered wooden surface
Species Types
Scientific Name
Ladona deplanata
Description
The male blue corporal has a rather dark blue body, a black head, and dark marks at the wing bases. Females and young males are brownish and have two short "corporal" stripes on the side of the thorax, behind the eye.
Media
Male blue dasher dragonfly perched on the tip of a twig, with dew on its wings
Species Types
Scientific Name
Pachydiplax longipennis
Description
Blue dasher males and females look quite different. Both have a white face, a black abdomen tip, and slanted black and yellow stripes on the thorax. But males are blue and females are striped black and yellow.
Media
Deer bot fly Cephenemyia phobifer resting on a support beam at the top of a fire tower
Species Types
Scientific Name
About 40 species in North America north of Mexico
Description
Bot flies are chunky, beelike flies usually with rounded heads. Adults are not commonly seen. The larvae are short, pudgy, segmented grubs that live as parasites in the tissues of animals. Those that live just under the skin often form a bulge. Some types live in the nasal or throat cavities of deer.
Media
Closeup of brown recluse spider on floor.
Species Types
Scientific Name
Loxosceles reclusa
Description
The brown recluse is one spider to avoid. It is venomous, though a bite is almost never fatal. Brown recluses are most commonly encountered in houses, where they occupy little-used drawers, closets, and other small hiding spaces.
Media
image of Caddisfly on leaf
Species Types
Scientific Name
About 1,500 species in North America north of Mexico
Description
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.
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.