several yellow aphids on plant

    Aphids

    More than 1,300 species in North America north of Mexico
    Two Asian lady beetles, one orange with several black spots, the other red with no spots

    Asian Lady Beetle

    Harmonia axyridis
    image of Assassin Bug crawling on a leaf

    Assassin Bugs

    Nearly 200 species in North America north of Mexico
    Venomous Icon

    Venomous

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

    Belted Crayfish (Big River Crayfish)

    Faxonius harrisonii (formerly Orconectes harrisonii)
    Photo of a meloe blister beetle, female, on ground

    Blister Beetles

    More than 400 species in North America north of Mexico
    image of greenbottle fly on carcass

    Blow Flies (Bottle Flies)

    About 84 species in North America.
    Image of a broad-banded watersnake

    Broad-Banded Watersnake

    Nerodia fasciata confluens
    Photo of Broad-headed skink on ground among leaves

    Broad-Headed Skink

    Plestiodon laticeps
    Several regal fritillaries feeding on butterfly weed

    Butterflies and Skippers

    More than 700 species in North America north of Mexico
    Camel cricket (cave cricket)

    Camel Crickets (Cave Crickets)

    About 150 species in North America north of Mexico
    Image of a Cecropia moth.

    Cecropia Moth

    Hyalophora cecropia
    Image of a five-lined skink

    Common Five-Lined Skink

    Plestiodon fasciatus
    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 coachwhip

    Eastern Coachwhip

    Coluber flagellum flagellum
    Image of a false morel

    False Morels

    Gyromitra spp. (false morels); Helvella spp. (elfin saddles)
    Poisonous Icon

    Poisonous

    Photo of a flat-headed snake held in someone’s hands

    Flat-Headed Snake

    Tantilla gracilis
    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)
    Goldfish side view photo with black background

    Goldfish

    Carassius auratus
    image of Fiery Searcher on dead leaves

    Ground Beetles

    About 2,400 species in North America north of Mexico
    Photo of cluster of hairy rubber cup mushrooms, cup fungi with orangish centers

    Hairy Rubber Cup

    Galiella rufa (formerly Bulgaria rufa)
    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
    image of an Ichneumon Wasp on tree trunk

    Ichneumon Wasps

    More than 5,000 species in North America
    Photo of a male Io Moth

    Io Moth

    Automeris io
    No photo available

    Kirtland’s Snake

    Clonophis kirtlandii
    Seven-spotted lady beetle on a flower

    Lady Beetles (Ladybird Beetles; Ladybugs)

    Nearly 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
    Photo of a leech

    Leeches

    Various species in the subclass Hirudinea
    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 longpincered crayfish.

    Longpincered Crayfish

    Faxonius longidigitus (formerly Orconectes longidigitus)
    Photo of a magdalen underwing moth

    Magdalen Underwing

    Catocala illecta
    Marbled orbweaver spider in web

    Marbled Orbweaver

    Araneus marmoreus
    Narceus Millipede crawling across gravel

    Millipedes

    More than 900 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
    mosquito resting on a white fabric

    Mosquitoes

    About 50 species of mosquitoes in Missouri
    Forage looper moth perched on a brick wall, viewed from side

    Moths

    More than 12,000 species in North America north of Mexico
    image of a Mydas Fly

    Mydas Flies

    About 80 species in North America
    image of a Nessus Sphinx

    Nessus Sphinx

    Amphion floridensis
    Ninebark calligraphy beetle on cluster of ninebark flower buds

    Ninebark Calligraphy Beetle

    Calligrapha spiraea
    image of a Dagger Moth

    Noctuid Moths

    More than 2,500 species in North America north of Mexico
    Tachinid fly visiting a mint flower

    Parasitic Flies (Tachinid Flies)

    About 1,350 species in North America north of Mexico
    image of a Yellow-Fringed Dolichomia Moth

    Pyralid Moths

    More than 680 species in North America north of Mexico
    Rainbow darter female side view photo with black background

    Rainbow Darter

    Etheostoma caeruleum
    Photo of a ramshorn snail on a wet rock.

    Ramshorn Snails

    Gyraulus, Helisoma, Menetus, Micromenetus, Planorbula spp.

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