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1/4 to 1/2 inch

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    image of an Alderfly

    Alderflies

    Sialis spp.
    image of a Thread-Waisted Wasp

    Ammophila Wasps

    Ammophila spp.
    Andrenid or miner bee collecting pollen on a flower

    Andrenid Bees (Miner Bees)

    More than 1,200 species in North America north of Mexico
    image of Antlion Larva on rock

    Antlion Larvae (Doodlebug Larvae)

    More than 100 species in North America north of Mexico
    Acrobat ants on a leaf

    Ants

    More than 700 species in North America
    Longhorn bee visiting a flower, viewed from side

    Apid Bees

    About 1,000 species in North America north of Mexico
    Photo of a female arabesque orbweaver spider

    Arabesque Orbweaver

    Neoscona arabesca
    Photo of an armored harvestman walking on the ground

    Armored Harvestmen

    Members of suborder Laniatores
    Photo of a triangle orbweaver, or arrowhead spider

    Arrowhead Spider (Triangle Orbweaver)

    Verrucosa arenata
    image of Assassin Bug crawling on a leaf

    Assassin Bugs

    Nearly 200 species in North America north of Mexico
    Venomous Icon

    Venomous

    Female spider wasp grasping and dragging body of sac spider

    Auplopus Spider Wasps

    Auplopus spp.
    Photo of a spotted orbweaver or barn spider, Neoscona crucifera, with black background

    Barn Spider

    Neoscona crucifera
    image of Bee Fly on leaf

    Bee Flies

    About 800 species in North America
    image of a Toad Bug

    Big-Eyed Toad Bug

    Gelastocoris oculatus
    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.
    image of a bronzed or common shore tiger beetle

    Bronzed Tiger Beetle

    Cinindela repanda
    image of Caddisfly on leaf

    Caddisflies

    About 1,500 species in North America north of Mexico
    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 female scorpionfly perched on a leaf.

    Common Scorpionflies

    Panorpa spp.
    image of a Common True Katydid

    Common True Katydid

    Pterophylla camellifolia
    Convergent lady beetle crawling on a leaf

    Convergent Lady Beetle

    Hippodamia convergens
    Photo of a Harvestman, viewed from above

    Daddy Longlegs (Harvestmen)

    About 6,500 species have been named so far, worldwide.
    Photo of a dark fishing spider standing on a rubber tire.

    Dark Fishing Spider

    Dolomedes tenebrosus
    Photo of a dull colored spittlebug adult on a twig

    Diamondback Spittlebug

    Lepyronia quadrangularis
    Image of a differential grasshopper.

    Differential Grasshopper

    Melanoplus differentialis
    Dogbane beetle resting on a window

    Dogbane Beetle

    Chrysochus auratus
    Photo of a female and male European earwig on a dead leaf.

    Earwigs

    Forficula auricularia, Euborellia anulipes, and others.
    Elm borer beetle resting on rocks in a flower planter

    Elm Borer

    Saperda tridentata
    Photo of an adult female field cricket

    Field Crickets

    Gryllus spp., Acheta domesticus, and other in subfamily Gryllinae
    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
    Flat-faced longhorn beetle crawling on wood

    Four-Humped Flat-Faced Longhorn

    Acanthoderes quadrigibba
    Four-spotted lady beetle on a leaf

    Four-Spotted Lady Beetle

    Brachiacantha quadripunctata
    Photo of a furrow orbweaver hanging head down with a green background

    Furrow Orbweavers

    Larinioides spp.
    image of Green Lacewing clinging to rock

    Green Lacewings

    About 85 species in North America north of Mexico
    image of Fiery Searcher on dead leaves

    Ground Beetles

    About 2,400 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
    image of Red-Headed Bush Cricket crawling on leaf

    Handsome Trig (Red-Headed Bush Cricket)

    Phyllopalpus pulchellus
    image of an Ichneumon Wasp on tree trunk

    Ichneumon Wasps

    More than 5,000 species in North America
    Japanese beetle on a leaf

    Japanese Beetle

    Popillia japonica
    invasive icon

    Invasive

    Common true katydid female on a leaf

    Katydids

    About 250 species in North America north of Mexico
    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
    Large crane fly perched on a white-painted surface, side view

    Large Crane Flies

    More than 500 species in North America north of Mexico
    Swamp milkweed leaf beetle on a leaf it has chewed on.

    Leaf Beetles

    About 2,000 species in North America
    Orange-patched smoky moth resting on the edge of a leaf

    Leaf Skeletonizer Moths (Smoky Moths)

    About 25 species in North America north of Mexico
    photo of a leafcutter bee

    Leafcutter Bees

    Megachile spp.

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