brokenray

    Arkansas Brokenray

    Lampsilis reeveiana
    Asian longhorned beetle male, specimen

    Asian Longhorned Beetle

    Anoplophora glabripennis
    invasive icon

    Invasive

    image of Assassin Bug crawling on a leaf

    Assassin Bugs

    Nearly 200 species in North America north of Mexico
    Venomous Icon

    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
    Closeup of brown recluse spider on floor.

    Brown Recluse (Violin Spider)

    Loxosceles reclusa
    Venomous Icon

    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.
    butterfly

    Butterfly

    Ellipsaria lineolata
    image of Caddisfly on leaf

    Caddisflies

    Various species in the order Trichoptera
    Image of Tomentose Burying Beetle crawling on the ground

    Carrion Beetles (Burying Beetles)

    Nicrophorus, Necrophila, Necrodes, and other Silphid genera
    image of Cicada Killer on Goldenrod

    Cicada Killer Wasp

    Sphecius speciosus
    image of Crane Fly clinging to a twig

    Crane Flies

    There are over 500 species of crane flies in North America.
    Photo of an adult damselfly on a twig next to water.

    Damselflies

    Species in the suborder Zygoptera
    deertoe

    Deertoe

    Truncilla truncata
    Photo of a devil crayfish.

    Devil Crayfish

    Lacunicambarus aff. diogenes
    Image of a differential grasshopper.

    Differential Grasshopper

    Melanoplus differentialis
    Photo of a male Banded Pennant dragonfly

    Dragonflies

    Species in the suborder Anisoptera
    elktoe

    Elktoe

    Alasmidonta marginata
    ellipse

    Ellipse and Bleedingtooth

    Venustaconcha ellipsiformis and V. pleasii
    Photo of male and female European wood wasps on pine stump

    European Wood Wasp (Sirex Woodwasp)

    Sirex noctilio
    invasive icon

    Invasive

    fatmucket

    Fatmucket

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

    Fishfly Larvae

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

    Fragile Papershell

    Leptodea fragilis
    Photo of a freckled crayfish.

    Freckled Crayfish

    Cambarus maculatus
    Monkey Face Mussel

    Freshwater Mussels

    Bivalve molluscs in order Unionoida
    Image of a giant red-headed centipede.

    Giant Red-Headed Centipede

    Scolopendra heros
    Venomous Icon

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

    Golden Crayfish

    Faxonius luteus (formerly Orconectes luteus)
    Photo of a gray-speckled crayfish.

    Gray-Speckled Crayfish

    Faxonius palmeri (formerly Orconectes palmeri)
    Green June beetle on goldenrod

    Green June Beetle

    Cotinis nitida
    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
    Photo of a horsehair worm in an aquarium

    Horsehair Worms

    About 350 species scientifically described.
    Image of house centipede

    House Centipedes

    There are several species of house centipedes in the world.
    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
    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
    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)
    maple leaf

    Mapleleaf

    Quadrula quadrula
    Photo of a mayfly

    Mayflies

    Hundreds of species in North America.
    Photo of a mayfly naiad crawling on rock underwater

    Mayfly Larvae

    There are hundreds of species in North America.
    image of Narceus Millipede crawling across gravel

    Millipedes

    More than 900 species in North America north of Mexico
    monkeyface

    Monkeyface

    Quadrula metanevra
    mucket

    Mucket

    Actinonaias ligamentina

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