Photo of an American burying beetle

    American Burying Beetle

    Nicrophorus americanus
    exclamation mark

    Endangered

    image of a Thread-Waisted Wasp

    Ammophila Wasps

    Ammophila spp.
    Acrobat ants on a leaf

    Ants

    More than 700 species in North America
    Photo of arrow-shaped micrathena spider

    Arrowshaped Micrathena

    Micrathena sagittata
    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 backswimmer, side view

    Backswimmers

    About 32 North American species in the family Notonectidae
    Image of a black widow

    Black Widow Spiders

    Latrodectus mactans and L. variolus
    Venomous Icon

    Venomous

    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.
    Photo of a bold jumping spider.

    Bold Jumper

    Phidippus audax
    Camel cricket (cave cricket)

    Camel Crickets (Cave Crickets)

    About 150 species in North America north of Mexico
    image of Cocklebur Weevil

    Cocklebur Weevil

    Rhodobaenus quinquepunctatus
    Convergent lady beetle crawling on a leaf

    Convergent Lady Beetle

    Hippodamia convergens
    Photo of a spothanded crayfish viewed from above on white background.

    Crayfishes

    About 36 species in Missouri
    image of a boxelder bug

    Eastern Boxelder Bug

    Boisea trivittata
    Elm borer beetle resting on rocks in a flower planter

    Elm Borer

    Saperda tridentata
    metallic, emerald-green beetle on ash leaf

    Emerald Ash Borer

    Agrilus planipennis
    invasive icon

    Invasive

    image of a Feather-Legged Fly

    Feather-Legged Flies

    Trichopoda spp.
    image of Firefly crawling on a leaf

    Fireflies (Lightning Bugs)

    Approx. 175 species in North America north of Mexico
    image of a Flower Fly on a flower

    Flower Flies (Syrphids)

    Nearly 900 species in North America
    Four-spotted lady beetle on a leaf

    Four-Spotted Lady Beetle

    Brachiacantha quadripunctata
    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 a goldenrod crab spider, whitish individual, on native aster flower

    Goldenrod Crab Spider

    Misumena vatia
    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
    image of an Ichneumon Wasp on tree trunk

    Ichneumon Wasps

    More than 5,000 species in North America
    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
    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
    Marbled orbweaver spider in web

    Marbled Orbweaver

    Araneus marmoreus
    Photo of a midge fly larva crawling on a rock in an aquarium

    Midge Fly Larvae

    Nearly 1,100 species in North America
    Red-femured milkweed borer beetle on milkweed leaf

    Milkweed Longhorns

    Tetraopes spp.
    Narceus Millipede crawling across gravel

    Millipedes

    More than 900 species in North America north of Mexico
    mosquito resting on a white fabric

    Mosquitoes

    About 50 species of mosquitoes in Missouri
    image of a Mydas Fly

    Mydas Flies

    About 80 species in North America
    Ninebark calligraphy beetle on cluster of ninebark flower buds

    Ninebark Calligraphy Beetle

    Calligrapha spiraea
    Photo of an orchard orbweaver with a black background

    Orchard Orbweaver

    Leucauge venusta
    Tachinid fly visiting a mint flower

    Parasitic Flies (Tachinid Flies)

    About 1,350 species in North America north of Mexico
    Black and rust-colored wasp on a plant

    Poecilopompilus Spider Wasps

    Poecilopompilus algidus and P. interruptus
    Polished lady beetle crawling on a twig

    Polished Lady Beetle

    Cycloneda munda
    Red and black spider wasp visiting snow-on-the-mountain flowers

    Psorthaspis Spider Wasps

    Psorthaspis spp.
    Photo of a ramshorn snail on a wet rock.

    Ramshorn Snails

    Gyraulus, Helisoma, Menetus, Micromenetus, Planorbula spp.
    Image of a red-legged grasshopper.

    Red-Legged Grasshopper

    Melanoplus femurrubrum

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