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several yellow aphids on plant

Aphids

More than 1,300 species in North America north of Mexico

Photo of a belted crayfish, also called Big River crayfish.

Belted Crayfish (Big River Crayfish)

Faxonius harrisonii (formerly Orconectes harrisonii)

image of greenbottle fly on carcass

Blow Flies (Bottle Flies)

About 84 species in North America.

Several regal fritillaries feeding on butterfly weed

Butterflies and Skippers

More than 700 species in North America north of Mexico

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

Damselflies

Species in the suborder Zygoptera

Orangethroat darter male in spawning colors, side view photo with black background

Darters

Etheostoma, Percina, Ammocrypta, and Crystallaria spp.

Photo of a male Banded Pennant dragonfly

Dragonflies

Species in the suborder Anisoptera

Eastern gartersnake

Eastern Gartersnake

Thamnophis sirtalis sirtalis

Monkey Face Mussel

Freshwater Mussels

Bivalve molluscs in order Unionoida

Polyphemus Moth, Belton MO

Giant Silkworm and Royal Moths

About 75 species in North America north of Mexico

Photo of a golden crayfish viewed through the surface of creek water.

Golden Crayfish

Faxonius luteus (formerly Orconectes luteus)

image of Fiery Searcher on dead leaves

Ground Beetles

About 2,400 species in North America north of Mexico

A metallic green sweat bee gathering pollen on a yellow flowerhead

Halictid Bees (Sweat Bees)

More than 500 species in North America north of Mexico

Swamp milkweed leaf beetle on a leaf it has chewed on.

Leaf Beetles

About 2,000 species in North America

image of a Leafhopper on leaf

Leafhoppers

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

Red milkweed beetle eating a common milkweed leaf.

Longhorned Beetles (Borers; Sawyer Beetles)

About 1,000 species in North America north of Mexico

Southern redbelly dace male in spawning colors, side view photo with black background

Minnows

Notropis, Cyprinella, Hybognathus, Luxilus, and others

Forage looper moth perched on a brick wall, viewed from side

Moths

More than 12,000 species in North America north of Mexico

Photo of an orchard orbweaver with a black background

Orchard Orbweaver

Leucauge venusta

Image of a red-eared slider

Red-Eared Slider

Trachemys scripta elegans

Image of a red-legged grasshopper.

Red-Legged Grasshopper

Melanoplus femurrubrum

Photo of a ringed crayfish.

Ringed Crayfish

Faxonius neglectus (formerly Orconectes neglectus)

Male eastern Hercules beetle walking in grass

Scarab Beetles

About 1,700 species in North America north of Mexico

image of a Carolina Grasshopper

Short-Horned Grasshoppers

About 620 species in North America

A white-lined sphinx moth sips nectar from a purple locoweed flower

Sphinx Moths (Hawk Moths)

More than 50 species in Missouri

image of a Spittlebug and nest on plant stem

Spittlebugs and Froghoppers

About 60 species in North America north of Mexico

Photo of a spothanded crayfish viewed through creekwater.

Spothanded Crayfish

Faxonius punctimanus (formerly Orconectes punctimanus)

Elongate-bodied springtail on a brown leaf

Springtails

More than 8,000 species globally

Tan stink bug on dead leaves

Stink Bugs

In North America, more than 200 species in 64 genera.

Cryptorhynchus weevil viewed from side

Weevils (Snout Beetles; Bark Beetles)

About 2,500 species in North America north of Mexico

painted turtle

Western Painted Turtle

Chrysemys picta bellii