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Longhorn bee visiting a flower, viewed from side

Apid Bees

About 1,000 species in North America north of Mexico

Asian longhorned beetle male, specimen

Asian Longhorned Beetle

Anoplophora glabripennis

Invasive

image of Assassin Bug crawling on a leaf

Assassin Bugs

Nearly 200 species in North America north of Mexico

Venomous

banded or white backed garden spider in web

Banded Garden Spider

Argiope trifasciata

image of Bee Fly on leaf

Bee Flies

About 800 species in North America

Image of a female Argiope garden spider.

Black-and-Yellow Garden Spider

Argiope aurantia

Male blue dasher dragonfly perched on the tip of a twig, with dew on its wings

Blue Dasher

Pachydiplax longipennis

Closeup of brown recluse spider on floor.

Brown Recluse (Violin Spider)

Loxosceles reclusa

Venomous

Gray, speckled, translucent gelatinous blob cut in half to show structure

Bryozoans (Moss Animals)

Freshwater species in the phylum Bryozoa

photo of bumblebee on a wild rose flower

Bumble Bees

Bombus spp.

image of Caddisfly on leaf

Caddisflies

About 1,500 species in North America north of Mexico

image of a Carolina Grasshopper

Carolina Grasshopper

Dissosteira carolina

Image of Tomentose Burying Beetle crawling on the ground

Carrion Beetles (Burying Beetles)

Nicrophorus, Necrophila, Necrodes, and others

Wood cockroach crawling on tree

Cockroaches and Termites

About 100 species of cockroaches and termites in North America north of Mexico

Photo of an adult damselfly on a twig next to water.

Damselflies

Species in the suborder Zygoptera

Image of a differential grasshopper.

Differential Grasshopper

Melanoplus differentialis

Photo of a male Banded Pennant dragonfly

Dragonflies

Species in the suborder Anisoptera

image of Cicada Killer on Goldenrod

Eastern Cicada Killer

Sphecius speciosus

ellipse

Ellipse and Bleedingtooth

Venustaconcha ellipsiformis and V. pleasii

Long-legged wasp grasping a wolf spider while clinging to house siding

Entypus Spider Wasps

Entypus aratus, E. unifasciatus, E. fulvicornis, and others

Photo of male and female European wood wasps on pine stump

European Wood Wasp (Sirex Woodwasp)

Sirex noctilio

Invasive

Photo of a fishfly larva crawling among rocks in an aquarium.

Fishfly Larvae

Chauliodes, Neohermes, and Nigronia spp. (in eastern US)

Monkey Face Mussel

Freshwater Mussels

Bivalve molluscs in order Unionoida

Image of a giant red-headed centipede.

Giant Red-Headed Centipede

Scolopendra heros

Venomous

Photo of several prosobranch pond snails crawling on a rock.

Gilled Aquatic Snails (Prosobranch Pond Snails)

Over 20 Missouri species in former subclass Prosobranchia

Green June beetle on goldenrod

Green June Beetle

Cotinis nitida

Photo of a green-eyed robber fly depositing eggs into Missouri ironweed flowers.

Green-Eyed Robber Fly

Promachus vertebratus

image of Fiery Searcher on dead leaves

Ground Beetles

About 2,400 species in North America north of Mexico

Photo of a Pigeon Tremex Horntail

Horntails

About 28 species in North America

image of Horse Fly on tree trunk

Horse and Deer Flies

Tabanus, Chrysops, and related genera

Photo of a deer fly larva, probably in a petri dish, on a gray background.

Horse and Deer Fly Larvae

Tabanus, Chrysops, and related genera

Image of house centipede

House Centipede

Scutigera coleoptrata

No photo available

Hydras

Various species in the genus Hydra

image of an Ichneumon Wasp on tree trunk

Ichneumon Wasps

More than 5,000 species in North America

Common true katydid female on a leaf

Katydids

About 250 species in North America north of Mexico

Large crane fly perched on a white-painted surface, side view

Large Crane Flies

More than 500 species in North America north of Mexico

Leaf-footed bug on a leaf

Leaf-Footed Bugs

Nearly 90 species in North America north of Mexico

image of a Leafhopper on leaf

Leafhoppers

More than 3,000 species in North America north of Mexico

Lichen grasshopper sitting on a rock

Lichen Grasshopper

Trimerotropis saxatilis

Locust borer on leaf

Locust Borer

Megacyllene robiniae

Red milkweed beetle eating a common milkweed leaf.

Longhorned Beetles (Borers; Sawyer Beetles)

About 1,000 species in North America north of Mexico

Photo of a mayfly

Mayflies

More than 600 species in North America north of Mexico

Photo of a mayfly naiad crawling on rock underwater

Mayfly Larvae

There are hundreds of species in North America.

Narceus Millipede crawling across gravel

Millipedes

More than 900 species in North America north of Mexico

image of Black-and-Yellow Mud Dauber

Mud Daubers

Three genera: Sceliphron, Trypoxylon, and Chalybion

image of a Mydas Fly

Mydas Flies

About 80 species in North America

Pink katydid standing on a milkweed leaf

Oblong-Winged Katydid

Amblycorypha oblongifolia

image of Paper Wasp on flowers

Paper Wasps

Polistes spp.

pink mucket

Pink Mucket

Lampsilis abrupta

Endangered

image of Robber Fly

Robber Flies

More than 1,000 species in North America

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