image of Horned Passalus crawling on wood

    Horned Passalus

    Odontotaenius disjunctus
    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
    Japanese beetle on a leaf

    Japanese Beetle

    Popillia japonica
    Lace bugs on a leaf

    Lace Bugs

    About 165 species in North American 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
    Swamp milkweed leaf beetle on a leaf it has chewed on.

    Leaf Beetles

    About 2,000 species in North America
    Leaf-footed bug on a leaf

    Leaf-Footed Bugs

    Nearly 90 species in North America north of Mexico
    photo of a leafcutter bee

    Leafcutter Bees

    Species in the genus Megachile.
    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
    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 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.
    Photo of an orchard orbweaver with a black background

    Orchard Orbweaver

    Leucauge venusta
    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 periodical cicada shown from the side.

    Periodical Cicadas

    Magicicada spp.
    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
    Photo of a male redlegged purseweb spider walking on limestone gravel

    Purseweb Spiders

    Sphodros spp.
    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
    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
    Glossy black spider wasp manipulating paralyzed spider

    Spider Wasps

    About 300 species in North America north of Mexico
    Photo of female spiny-bellied orbweaver (spined micrathena) on a leaf

    Spined Micrathena

    Micrathena gracilis
    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
    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
    Image of a sweat bee

    Sweat Bees

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

    Tan Jumping Spider

    Platycriptus undatus

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