Photo of a blusher, a tan gilled mushroom, showing injured spot turning rust red

    Amanitas

    Amanita spp. (about 600 species, worldwide)
    Poisonous Icon

    Poisonous

    Jagged ambush bug on a plant stem

    Ambush Bugs

    Phymata spp. and others in subfamily Phymatinae (ambush bugs)
    Venomous Icon

    Venomous

    several yellow aphids on plant

    Aphids

    More than 1,300 species in North America north of Mexico
    Photo of cluster of bleeding mycenas, small, capped, reddish mushrooms

    Bleeding Mycena

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

    Bryozoans (Moss Animals)

    Freshwater species in the phylum Bryozoa
    Several regal fritillaries feeding on butterfly weed

    Butterflies and Skippers

    More than 700 species in North America north of Mexico
    Photo of a papershell crayfish, also called calico crayfish.

    Calico Crayfish (Papershell Crayfish)

    Faxonius immunis (formerly Orconectes immunis)
    Image of a Cecropia moth.

    Cecropia Moth

    Hyalophora cecropia
    Photo of a sod webworm adult moth on a window with hind end propped up

    Crambid Snout Moths

    More than 860 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
    Image of an osage copperhead

    Eastern Copperhead

    Agkistrodon contortrix
    Venomous Icon

    Venomous

    elktoe

    Elktoe

    Alasmidonta marginata
    Photo of a green crab spider on a leaf

    Foliage Flower Spiders

    Mecaphesa spp. and Misumessus spp.
    Monkey Face Mussel

    Freshwater Mussels

    Bivalve molluscs in order Unionoida
    A wavy-lined emerald moth resting on a glass window

    Geometrid Moths

    About 250 species recorded for Missouri
    Polyphemus Moth, Belton MO

    Giant Silkworm and Royal Moths

    About 75 species in North America north of Mexico
    image of a Honey Locust Moth

    Honey Locust Moth

    Syssphinx bicolor (syn. Sphingicampa bicolor)
    No photo available

    Hydras

    Various species in the genus Hydra
    Seven-spotted lady beetle on a flower

    Lady Beetles (Ladybird Beetles; Ladybugs)

    Nearly 500 species in North America north of Mexico

    Land Snails and Slugs

    Approx. 150 species of land snails and slugs in Missouri
    image of a Leafhopper on leaf

    Leafhoppers

    More than 3,000 species in North America north of Mexico
    Photo of a magdalen underwing moth

    Magdalen Underwing

    Catocala illecta
    Marbled orbweaver spider in web

    Marbled Orbweaver

    Araneus marmoreus
    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
    image of a Dagger Moth

    Noctuid Moths

    More than 2,500 species in North America north of Mexico
    Photo of a Painted Lichen Moth

    Painted Lichen Moth

    Hypoprepia fucosa
    Acanaloniid planthopper, green, viewed from side

    Planthoppers

    More than 900 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
    Photo of a ramshorn snail on a wet rock.

    Ramshorn Snails

    Gyraulus, Helisoma, Menetus, Micromenetus, Planorbula spp.
    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
    Photo of a swift crab spider, female, from above.

    Swift Crab Spider

    Mecaphesa celer (formerly Misumenops celer)
    Adult salt marsh moth resting on a vertical plant stem

    Tiger and Lichen Moths

    Subfamily Arctiinae (formerly a family)
    Photo of an aquatic tubificid worm among rocks in an aquarium.

    Tubificid Worms (Tubifex Worms)

    Tubifex spp. and other aquatic tubificid annelids
    Photo of a pink planarian on a rock.

    Turbellarians (Planarians; Free-Living Flatworms)

    Species in genera Dugesia, Planaria, etc.
    Photo of a magdalen underwing moth

    Underwing Moths

    Catocala spp., more than 100 species in North America north of Mexico
    Photo of several violet toothed polypores, violet-gray bracket fungi

    Violet Toothed Polypore

    Trichaptum biforme
    Water springtails congregate in water above soggy dead leaves

    Water Springtail

    Podura aquatica
    Cryptorhynchus weevil viewed from side

    Weevils (Snout Beetles; Bark Beetles)

    About 2,500 species in North America north of Mexico
    Photo of wood ear mushroom, which looks like a brownish human ear stuck to a log

    Wood Ear (Tree Ear)

    Auricularia auricula (formerly A. auricula-judae)
    fork and knife icon

    Edible