Acrobat ants on a leaf

    Ants

    More than 700 species in North America
    several yellow aphids on plant

    Aphids

    More than 1,300 species in North America north of Mexico
    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

    magnified chigger

    Chiggers

    Trombicula alfreddugesi and other Trombicula spp. (syn. Eutrombicula)
    image of Cocklebur Weevil

    Cocklebur Weevil

    Rhodobaenus quinquepunctatus
    Convergent lady beetle crawling on a leaf

    Convergent Lady Beetle

    Hippodamia convergens
    Golden tortoise beetle on a leaf

    Golden Tortoise Beetle

    Charidotella sexpunctata
    Photo of a goldenrod crab spider, whitish individual, on native aster flower

    Goldenrod Crab Spider

    Misumena vatia
    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
    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
    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 an orchard orbweaver with a black background

    Orchard Orbweaver

    Leucauge venusta
    Polished lady beetle crawling on a twig

    Polished Lady Beetle

    Cycloneda munda
    Photo of a ramshorn snail on a wet rock.

    Ramshorn Snails

    Gyraulus, Helisoma, Menetus, Micromenetus, Planorbula spp.
    Male eastern Hercules beetle walking in grass

    Scarab Beetles

    About 1,700 species in North America north of Mexico
    Seven-spotted lady beetle on a flower

    Seven-Spotted Lady Beetle

    Coccinella septempunctata
    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
    image of a Spittlebug and nest on plant stem

    Spittlebugs and Froghoppers

    About 60 species in North America north of Mexico
    Elongate-bodied springtail on a brown leaf

    Springtails

    More than 8,000 species globally
    Tan stink bug on dead leaves

    Stink Bugs

    In North America, more than 200 species in 64 genera.
    Photo of an adult two-lined spittlebug on a leaf

    Two-Lined Spittlebug

    Prosapia bicincta
    V-marked lady beetle crawling on a flower

    V-Marked Lady Beetle

    Neoharmonia venusta
    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
    image of a Wheel Bug, Side View

    Wheel Bug

    Arilus cristatus
    Venomous Icon

    Venomous

    image of Xystodesmid Millipede crawling on a forest floor

    Xystodesmid Millipedes

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