Jagged ambush bug on a plant stem

    Ambush Bugs

    Phymata spp. and others in subfamily Phymatinae (ambush bugs)
    Venomous Icon

    Venomous

    several yellow aphids on plant

    Aphids

    More than 1,300 species in North America north of Mexico
    Photo of backswimmer, side view

    Backswimmers

    About 32 North American species in the family Notonectidae
    Gray, speckled, translucent gelatinous blob cut in half to show structure

    Bryozoans (Moss Animals)

    Freshwater species in the phylum Bryozoa
    Photo of a green crab spider on a leaf

    Foliage Flower Spiders

    Mecaphesa spp. and Misumessus spp.
    Photo of a green crab spider on a leaf

    Green Crab Spider

    Misumessus oblongus (formerly Misumenops oblonga)
    No photo available

    Hydras

    Various species in the genus Hydra
    image of a Leafhopper on leaf

    Leafhoppers

    More than 3,000 species in North America north of Mexico
    Photo of a northern crab spider

    Northern Crab Spider

    Mecaphesa asperata
    Acanaloniid planthopper, green, viewed from side

    Planthoppers

    More than 900 species in North America north of Mexico
    Photo of a pink planarian on a rock.

    Turbellarians (Planarians; Free-Living Flatworms)

    Species in genera Dugesia, Planaria, etc.
    Cryptorhynchus weevil viewed from side

    Weevils (Snout Beetles; Bark Beetles)

    About 2,500 species in North America north of Mexico