image of Bee Fly on leaf

    Bee Flies

    About 800 species in North America
    image of Caddisfly on leaf

    Caddisflies

    About 1,500 species in North America north of Mexico
    Click beetle resting on a brick wall

    Click Beetles

    Approximately 1,000 species in North America
    image of a Common True Katydid

    Common True Katydid

    Pterophylla camellifolia
    Photo of an adult damselfly on a twig next to water.

    Damselflies

    Species in the suborder Zygoptera
    Image of a differential grasshopper.

    Differential Grasshopper

    Melanoplus differentialis
    Photo of a male Banded Pennant dragonfly

    Dragonflies

    Species in the suborder Anisoptera
    Photo of eastern dobsonfly

    Eastern Dobsonfly

    Corydalus cornutus
    image of a Summer Fishfly

    Fishflies

    Chauliodes, Neohermes, and Nigronia spp. (in eastern US)
    image of Fiery Searcher on dead leaves

    Ground Beetles

    About 2,400 species in North America north of Mexico
    Photo of a Pigeon Tremex Horntail

    Horntails

    About 28 species in North America
    Common true katydid female on a leaf

    Katydids

    About 250 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
    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 mayfly

    Mayflies

    More than 600 species in North America north of Mexico
    Narceus Millipede crawling across gravel

    Millipedes

    More than 900 species in North America north of Mexico
    Photo of walkingsticks during outbreak

    Northern Walkingstick

    Diapheromera femorata
    Photo of a meloe blister beetle, female, on ground

    Oil Beetles

    Meloe spp.
    Olive-green swamp grasshopper perched on a grass blade

    Olive-Green Swamp Grasshopper

    Paroxya clavuliger (syn. P. hoosieri)
    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
    photo of a male reddish-brown stag beetle

    Stag Beetles

    About 40 species in North America north of Mexico
    Photo of an adult stonefly on a leaf

    Stoneflies

    Nearly 700 species in North America north of Mexico
    image of Six-Spotted Tiger Beetle crawling on dead leaves

    Tiger Beetles

    Subfamily Cicindelinae (about 100 species in North America)
    Photo of a northern walkingstick on autumn dogwood leaves

    Walkingsticks (Stick Insects)

    Diapheromera femorata, Megaphasma denticrus, and others
    image of Xystodesmid Millipede crawling on a forest floor

    Xystodesmid Millipedes

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