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Venomous

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Aquatic Invertebrates

Photo of a giant water bug

Giant Water Bugs

Species in the genera Abedus, Belostoma, and Lethocerus
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Venomous

Land Invertebrates

Jagged ambush bug on a plant stem

Ambush Bugs

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

image of Assassin Bug crawling on a leaf

Assassin Bugs

Nearly 200 species in North America north of Mexico
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Venomous

Image of a black widow

Black Widow Spiders

Latrodectus mactans and L. variolus
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Venomous

Closeup of brown recluse spider on floor.

Brown Recluse (Violin Spider)

Loxosceles reclusa
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Venomous

Image of a giant red-headed centipede.

Giant Red-Headed Centipede

Scolopendra heros
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Venomous

striped bark scorpion on a rock

Striped Bark Scorpion

Centruroides vittatus
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Venomous

image of a Wheel Bug, Side View

Wheel Bug

Arilus cristatus
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Venomous

Reptiles and Amphibians

Image of an osage copperhead

Eastern Copperhead

Agkistrodon contortrix
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Venomous

Image of a northern cottonmouth

Northern Cottonmouth

Agkistrodon piscivorus
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Venomous

Image of a massasauga

Prairie Massasauga

Sistrurus tergeminus tergeminus
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Venomous

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Endangered

Image of a timber rattlesnake

Timber Rattlesnake

Crotalus horridus
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Venomous

Image of a western pygmy rattlesnake

Western Pygmy Rattlesnake

Sistrurus miliarius streckeri
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Venomous