Photo of an alcohol inky mushroom cut in half lengthwise.

    Alcohol Inky

    Coprinopsis atramentaria (formerly Coprinus atramentarius)
    fork and knife icon

    Edible

    image of an Alderfly

    Alderflies

    Sialis spp.
    Photo of an alderfly larva among rocks and gravel in an aquarium.

    Alderfly Larvae

    Sialis spp.
    Photo of a blusher, a tan gilled mushroom, showing injured spot turning rust red

    Amanitas

    Amanita spp. (about 600 species, worldwide)
    Poisonous Icon

    Poisonous

    Jagged ambush bug on a plant stem

    Ambush Bugs

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

    Venomous

    American snout butterfly resting with wings folded

    American Snout

    Libytheana carinent
    image of Walker's Cicada clinging to a perch

    Annual Cicadas

    Neotibicen spp. (in Missouri) (formerly Tibicen)
    Photo of adult antlion with wings spread

    Antlion Adults

    More than 100 species in North America north of Mexico
    image of Antlion Larva on rock

    Antlion Larvae (Doodlebug Larvae)

    More than 100 species in North America north of Mexico
    several yellow aphids on plant

    Aphids

    More than 1,300 species in North America north of Mexico
    Photo of an aquatic isopod in an aquarium, crawling on a rock.

    Aquatic Pillbugs and Sowbugs (Aquatic Isopods)

    Freshwater members of the crustacean order Isopoda
    Photo of a spotted fishing spider perched on the water's surface amid floating duckweed plants

    Aquatic Spiders

    Dolomedes spp., Tetragnatha spp., and others
    Photo of artist conk, woody bracket fungus on tree shown from side

    Artist Conk

    Ganoderma applanatum
    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 Berkeley's polypore, fresh, young specimen.

    Berkeley’s Polypore

    Bondarzewia berkeleyi
    fork and knife icon

    Edible

    image of a Toad Bug

    Big-Eyed Toad Bug

    Gelastocoris oculatus
    Bighead carp side view photo with black background

    Bighead Carp

    Hypophthalmichthys nobilis
    invasive icon

    Invasive

    Bigmouth buffalo side view photo with black background

    Bigmouth Buffalo

    Ictiobus cyprinellus
    Photograph of a black morel mushroom

    Black Morel

    Morchella angusticeps (formerly M. elata)
    fork and knife icon

    Edible

    Photo of two black trumpets, dark brown vase-shaped mushrooms on mossy ground

    Black Trumpet

    Craterellus cornucopioides (C. fallax)
    fork and knife icon

    Edible

    Photo of black-staining polypore, a mushroom with tan, wavy, fan-shaped caps

    Black-Staining Polypore

    Meripilus sumstinei (formerly M. giganteus)
    fork and knife icon

    Edible

    Photo of cluster of bleeding mycenas, small, capped, reddish mushrooms

    Bleeding Mycena

    Mycena haematopus
    Photo of a meloe blister beetle, female, on ground

    Blister Beetles

    More than 400 species in North America north of Mexico
    image of greenbottle fly on carcass

    Blow Flies (Bottle Flies)

    About 84 species in North America.
    Blue catfish side view photo with black background

    Blue Catfish

    Ictalurus furcatus
    Boreal Chorus Frog

    Boreal Chorus Frog

    Pseudacris maculata
    Image of a broad-banded watersnake

    Broad-Banded Watersnake

    Nerodia fasciata confluens
    Bronze copper butterfly perched on a grass blade, wings closed

    Bronze Copper

    Lycaena hyllus (syn. Hyllolycaena hyllus; Lycaena thoe)
    Closeup of brown recluse spider on floor.

    Brown Recluse (Violin Spider)

    Loxosceles reclusa
    Venomous Icon

    Venomous

    Gray, speckled, translucent gelatinous blob cut in half to show structure

    Bryozoans (Moss Animals)

    Freshwater species in the phylum Bryozoa
    Several regal fritillaries feeding on butterfly weed

    Butterflies and Skippers

    More than 700 species in North America north of Mexico
    Photo of a Cabbage White

    Cabbage White

    Pieris rapae
    image of Caddisfly on leaf

    Caddisflies

    Various species in the order Trichoptera
    Photo of caddisfly larva with case made of detritus

    Caddisfly Larvae

    Various species in the order Trichoptera
    Photo of a Cajun dwarf crayfish.

    Cajun Dwarf Crayfish

    Cambarellus puer
    Photo of a papershell crayfish, also called calico crayfish.

    Calico Crayfish (Papershell Crayfish)

    Faxonius immunis (formerly Orconectes immunis)
    Photo of a Caney Mountain cave crayfish out of water on a wet, red-coated cave rock.

    Caney Mountain Cave Crayfish

    Faxonius stygocaneyi (formerly Orconectes stygocaneyi)
    Image of a Cecropia moth.

    Cecropia Moth

    Hyalophora cecropia
    Photo of a Celery Looper taking nectar from a flower

    Celery Looper

    Anagrapha falcifera
    Photo of a cellar spider in her cobweb with egg sac

    Cellar Spiders

    Pholcus, Psilochorus, and others in the Pholcid family
    Channel catfish side view photo with black background

    Channel Catfish

    Ictalurus punctatus
    image of a Checkered White, Twigs

    Checkered White

    Pontia protodice
    Image of Chinese mantis.

    Chinese Mantis

    Tenodera aridifolia
    Photo of eyed click beetle on bark

    Click Beetles

    Approximately 1,000 species in North America
    A photo of a Clover Looper.

    Clover Looper

    Caenurgina crassiuscula
    Photo of a Common Checkered Skipper
    Photo of a common house spider, egg sac, and web

    Common House Spider

    Parasteatoda tepidariorum (syn. Achaeranea tepidariorum)
    Photo of common split gills, white bracket mushrooms growing on branch

    Common Split Gill

    Schizophyllum commune

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