Red milkweed beetle eating a common milkweed leaf.

    Longhorned Beetles (Borers; Sawyer Beetles)

    About 1,000 species in North America north of Mexico
    Photo of a longjawed orbweaver walking on a plant stalk

    Longjawed Orbweavers

    Tetragnatha spp.
    image of May Beetle on wood

    May Beetles (June Bugs)

    Phyllophaga spp.
    Photo of a mayfly

    Mayflies

    Hundreds of species in North America.
    image of a Midge

    Midges

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

    Millipedes

    More than 900 species in North America north of Mexico
    image of Mosquito

    Mosquitoes

    There are about 50 species of mosquitoes in our state.
    image of a Mydas Fly

    Mydas Flies

    About 80 species in North America
    Photo of a nursery web spider on a plant

    Nursery Web Spiders

    Pisaurina spp.
    image of a Four-Spotted Owlfly

    Owlflies

    There are 8 species in North America
    Peacock fly resting on a thistle leaf

    Peacock Flies (Tephritid Fruit Flies)

    About 300 species in North America north of Mexico
    Photo of a picture-winged fly

    Picture-Winged Flies

    About 130 species in North America north of Mexico
    Photo of a sowbug (left) and pillbug (right).

    Pillbugs and Sowbugs (Land Isopods)

    Land-dwelling members of the crustacean order Isopoda
    Citrus flatid planthopper on twig

    Planthoppers

    More than 900 species in North America north of Mexico
    Image of a deceased pseudoscorpion on a US dime

    Pseudoscorpions

    Various species in the order Pseudoscorpionida
    Image of a red-legged grasshopper.

    Red-Legged Grasshopper

    Melanoplus femurrubrum
    image of Robber Fly

    Robber Flies

    More than 1,000 species in North America
    image of Sand Wasp perched on sand

    Sand Wasps

    Numerous species and genera in Missouri
    Male eastern Hercules beetle walking in grass

    Scarab Beetles

    About 1,700 species in North America north of Mexico.
    image of a Carolina Grasshopper

    Short-Horned Grasshoppers

    About 620 species in North America
    Photo of a firebrat, a type of silverfish

    Silverfish (Firebrat)

    Lepisma saccharina, Thermobia domestica, and other species
    A reddish centipede crawls over a rock

    Soil Centipedes

    There are many species of soil centipedes in our state.
    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
    Photo of a spotted fishing spider and several water springtails at the surface of shallow water

    Spotted Fishing Spider

    Dolomedes triton
    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
    Squash bug on sand

    Squash Bugs

    Anasa tristis and other Anasa spp.
    photo of a male reddish-brown stag beetle

    Stag Beetles

    About 24 species in North America north of Mexico
    Green stink bug on a leaf

    Stink Bugs

    In North America, more than 200 species in 64 genera.
    Photo of an adult stonefly on a leaf

    Stoneflies

    There are hundreds of species in North America
    striped bark scorpion

    Striped Bark Scorpion

    Centruroides vittatus
    Venomous Icon

    Venomous

    Image of a sweat bee

    Sweat Bees

    Numerous species and genera in Missouri
    Photo of a tan jumping spider

    Tan Jumping Spider

    Platycriptus undatus
    Photo of a Texas brown tarantula

    Texas Brown Tarantula

    Aphonopelma hentzi
    American dog tick crawling on a person's skin

    Ticks

    Three common Missouri species.
    image of Six-Spotted Tiger Beetle crawling on dead leaves

    Tiger Beetles

    Subfamily Cicindelinae (about 100 species in North America)
    Photo of a trashline orbweaver, closeup

    Trashline Orbweavers

    Cyclosa conica and C. turbinata
    Two-marked treehopper clinging to a stem

    Treehoppers

    More than 260 species in North America North of Mexico
    Photo of a northern walkingstick on autumn dogwood leaves

    Walkingsticks (Stick Insects)

    Diapheromera femorata, Megaphasma denticrus, and others
    image of Cocklebur Weevil

    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
    Photo of wolf spider with young

    Wolf Spiders

    Numerous species and genera in our state.

Pages

See Also

Photo of a Yellow-Collared Scape Moth

Yellow-Collared Scape Moth

Cisseps fulvicollis
image of Plume Moth on blade of grass

Plume Moths

Nearly 150 species in North America north of Mexico