Jagged ambush bug on a plant stem

    Ambush Bugs

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

    Venomous

    image of Antlion Larva on rock

    Antlion Larvae (Doodlebug Larvae)

    More than 100 species in North America north of Mexico
    Photo of a female arabesque orbweaver spider

    Arabesque Orbweaver

    Neoscona arabesca
    image of Assassin Bug crawling on a leaf

    Assassin Bugs

    Nearly 200 species in North America north of Mexico
    Venomous Icon

    Venomous

    Citrus flatid planthopper on twig

    Citrus Flatid Planthopper

    Metcalfa pruinosa
    Click beetle resting on a brick wall

    Click Beetles

    Approximately 1,000 species in North America
    Photo of a Harvestman, viewed from above

    Daddy Longlegs (Harvestmen)

    About 6,500 species have been named so far, worldwide.
    Photo of an adult female field cricket

    Field Crickets

    Gryllus spp., Acheta domesticus, and other in subfamily Gryllinae
    image of Green Lacewing clinging to rock

    Green Lacewings

    About 85 species in North America north of Mexico
    Photo of a Xysticus crab spider, tan individual

    Ground Crab Spiders

    Xysticus spp.
    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
    Photo of female heptagonal orbweaver in web.
    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
    photo of a leafcutter bee

    Leafcutter Bees

    Megachile spp.
    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
    Marbled orbweaver spider in web

    Marbled Orbweaver

    Araneus marmoreus
    image of a Midge

    Midges

    Nearly 1,100 species in North America
    Narceus Millipede crawling across gravel

    Millipedes

    More than 900 species in North America north of Mexico
    Ninebark calligraphy beetle on cluster of ninebark flower buds

    Ninebark Calligraphy Beetle

    Calligrapha spiraea
    Photo of a female openfield orbweaver spider crouching on a plant stalk

    Openfield Orbweaver

    Araneus pratensis
    Peacock fly resting on a thistle leaf

    Peacock Flies (Tephritid Fruit Flies)

    About 300 species in North America north of Mexico
    Acanaloniid planthopper, green, viewed from side

    Planthoppers

    More than 900 species in North America north of Mexico
    Male eastern Hercules beetle walking in grass

    Scarab Beetles

    About 1,700 species in North America north of Mexico
    A reddish centipede crawls over a rock

    Soil Centipedes

    Estimated 4,000 species globally
    image of Soldier Beetle on Goldenrod

    Soldier Beetles

    Nearly 500 species in North America north of Mexico
    Spiny assassin bug walking on a white napkin

    Spiny Assassin Bug

    Sinea spinipes
    image of a Spittlebug and nest on plant stem

    Spittlebugs and Froghoppers

    About 60 species in North America north of Mexico
    Photo of a spotted orbweaver or barn spider, Neoscona crucifera, with black background

    Spotted Orbweavers

    Neoscona spp.
    Tan stink bug on dead leaves

    Stink Bugs

    In North America, more than 200 species in 64 genera.
    American dog tick crawling on a person's skin

    Ticks

    Three common Missouri species
    Two-marked treehopper clinging to a stem

    Treehoppers

    More than 260 species in North America North of Mexico
    Cryptorhynchus weevil viewed from side

    Weevils (Snout Beetles; Bark Beetles)

    About 2,500 species in North America north of Mexico
    Photo of a whitebanded crab spider, yellow individual, on ox-eye daisy flower

    Whitebanded Crab Spider

    Misumenoides formosipes
    image of Xystodesmid Millipede crawling on a forest floor

    Xystodesmid Millipedes

    8 tribes, with about 23 genera, in North America north of Mexico