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
    image of Assassin Bug crawling on a leaf

    Assassin Bugs

    Nearly 200 species in North America north of Mexico
    Venomous Icon

    Venomous

    image of Bee Fly on leaf

    Bee Flies

    About 800 species in North America
    Photo of a meloe blister beetle, female, on ground

    Blister Beetles

    More than 400 species in North America north of Mexico
    Closeup of brown recluse spider on floor.

    Brown Recluse (Violin Spider)

    Loxosceles reclusa
    Venomous Icon

    Venomous

    Photo of a cellar spider in her cobweb with egg sac

    Cellar Spiders

    Pholcus, Psilochorus, and others in the Pholcid family
    Photo of a common house spider, egg sac, and web

    Common House Spider

    Parasteatoda tepidariorum (syn. Achaeranea tepidariorum)
    Photo of a Harvestman, viewed from above

    Daddy Longlegs (Harvestmen)

    About 6,500 species have been named so far, worldwide.
    Photo of a dotted wolf spider

    Dotted Wolf Spider

    Rabidosa punctulata
    Long-legged wasp grasping a wolf spider while clinging to house siding

    Entypus Spider Wasps

    Entypus aratus, E. unifasciatus, E. fulvicornis, and others
    filmy dome spider

    Filmy Dome Spider

    Neriene radiata (formerly Prolinyphia marginata)
    Polyphemus Moth, Belton MO

    Giant Silkworm and Royal Moths

    About 75 species in North America north of Mexico
    Green June beetle on goldenrod

    Green June Beetle

    Cotinis nitida
    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.
    Honeybee worker on flower

    Honeybee

    Apis mellifera
    Photo of a Pigeon Tremex Horntail

    Horntails

    About 28 species in North America
    image of Horse Fly on tree trunk

    Horse and Deer Flies

    Tabanus, Chrysops, and related genera
    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
    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
    Faint-spotted palthis moth resting on part of an aluminum screen door

    Litter Moths

    Subfamily Herminiinae
    Red milkweed beetle eating a common milkweed leaf.

    Longhorned Beetles (Borers; Sawyer Beetles)

    About 1,000 species in North America north of Mexico
    Narceus Millipede crawling across gravel

    Millipedes

    More than 900 species in North America north of Mexico
    Forage looper moth perched on a brick wall, viewed from side

    Moths

    More than 12,000 species in North America north of Mexico
    image of Black-and-Yellow Mud Dauber

    Mud Daubers

    Three genera: Sceliphron, Trypoxylon, and Chalybion
    Photo of a nursery web spider on a plant

    Nursery Web Spiders

    Pisaurina spp.
    image of Paper Wasp on flowers

    Paper Wasps

    Polistes spp.
    Image of a deceased pseudoscorpion on a US dime

    Pseudoscorpions

    Various species in the order Pseudoscorpionida
    image of a Yellow-Fringed Dolichomia Moth

    Pyralid Moths

    More than 680 species in North America north of Mexico
    Photo of wolf spider with young

    Rabid Wolf Spider

    Rabidosa rabida
    Red-headed ash borer on tree bark

    Red-Headed Ash Borer

    Neoclytus acuminatus
    image of Sand Wasp perched on sand

    Sand Wasps

    More than 1,200 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
    Glossy black spider wasp manipulating paralyzed spider

    Spider Wasps

    About 300 species in North America north of Mexico
    Photo of a spotted orbweaver or barn spider, Neoscona crucifera, with black background

    Spotted Orbweavers

    Neoscona spp.
    Elongate-bodied springtail on a brown leaf

    Springtails

    More than 8,000 species globally
    striped bark scorpion on a rock

    Striped Bark Scorpion

    Centruroides vittatus
    Venomous Icon

    Venomous

    American dog tick crawling on a person's skin

    Ticks

    Three common Missouri species
    Photo of a trashline orbweaver, closeup

    Trashline Orbweavers

    Cyclosa conica and C. turbinata
    Cryptorhynchus weevil viewed from side

    Weevils (Snout Beetles; Bark Beetles)

    About 2,500 species in North America north of Mexico
    Photo of wolf spider with young

    Wolf Spiders

    Nearly 250 species in North America north of Mexico