Admirable Grasshopper on grass stem

    Admirable Grasshopper

    Syrbula admirabilis
    image of Walker's Cicada clinging to a perch

    Annual Cicadas

    Neotibicen spp. (in Missouri) (formerly Tibicen)
    Photo of adult antlion with wings spread

    Antlion Adults

    More than 100 species in North America north of Mexico
    Asian longhorned beetle male, specimen

    Asian Longhorned Beetle

    Anoplophora glabripennis
    invasive icon

    Invasive

    Female adult baskettail dragonfly perched on a plant stem

    Baskettails

    Epitheca spp.
    image of Bee Fly on leaf

    Bee Flies

    About 800 species in North America
    Photo of a belted crayfish, also called Big River crayfish.

    Belted Crayfish (Big River Crayfish)

    Faxonius harrisonii (formerly Orconectes harrisonii)
    image of Black Giant Ichneumon Wasp on tree trunk
    Black saddlebags dragonfly perched on an upright twig

    Black Saddlebags

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

    Blue Dasher

    Pachydiplax longipennis
    Bluefer

    Bluefer (Purpleshell)

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

    Bryozoans (Moss Animals)

    Freshwater species in the phylum Bryozoa
    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
    Click beetle resting on a brick wall

    Click Beetles

    Approximately 1,000 species in North America
    Photo of a Cobra Clubtail dragonfly

    Cobra Clubtail

    Gomphurus vastus
    Wood cockroach crawling on tree

    Cockroaches and Termites

    About 100 species of cockroaches and termites in North America north of Mexico
    Male common whitetail dragonfly perched on a twig

    Common Whitetail

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

    Damselflies

    Species in the suborder Zygoptera
    Photo of a male Banded Pennant dragonfly

    Dragonflies

    Species in the suborder Anisoptera
    Photo of eastern dobsonfly

    Eastern Dobsonfly

    Corydalus cornutus
    Male eastern Hercules beetle walking in grass
    Photograph of Ebonyshell freshwater mussel shell exterior view

    Ebonyshell

    Fusconaia ebena
    exclamation mark

    Endangered

    elephant's ear

    Elephantear

    Elliptio crassidens
    exclamation mark

    Endangered

    Photo of male and female European wood wasps on pine stump

    European Wood Wasp (Sirex Woodwasp)

    Sirex noctilio
    invasive icon

    Invasive

    image of a Summer Fishfly

    Fishflies

    Chauliodes, Neohermes, and Nigronia spp. (in eastern US)
    Photo of a freckled crayfish.

    Freckled Crayfish

    Cambarus maculatus
    Monkey Face Mussel

    Freshwater Mussels

    Bivalve molluscs in order Unionoida
    giant floater

    Giant Floater

    Pygandon grandis
    Image of a giant red-headed centipede.

    Giant Red-Headed Centipede

    Scolopendra heros
    Venomous Icon

    Venomous

    Photo of a giant water bug

    Giant Water Bugs

    Species in the genera Abedus, Belostoma, and Lethocerus
    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)
    image of Fiery Searcher on dead leaves

    Ground Beetles

    About 2,400 species in North America north of Mexico
    Halloween pennant perched on the tip of a dried flowering stalk

    Halloween Pennant

    Celithemis eponina
    Photo of hellgrammite

    Hellgrammite

    Corydalus cornutus
    Photo of a Hine's emerald dragonfly

    Hine's Emerald

    Somatochlora hineana
    exclamation mark

    Endangered

    Photo of a Pigeon Tremex Horntail

    Horntails

    About 28 species in North America
    Photo of a horsehair worm in an aquarium

    Horsehair Worms

    About 350 species scientifically described.
    No photo available

    Hydras

    Various species in the genus Hydra
    Photo of a leech

    Leeches

    Various species in the subclass Hirudinea
    lilliput

    Lilliput

    Toxolasma parvus
    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)
    Narceus Millipede crawling across gravel

    Millipedes

    More than 900 species in North America north of Mexico
    image of a Mydas Fly

    Mydas Flies

    About 80 species in North America

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