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VAPAGuide: Venomous & Poisonous Animals

Country: Wisconsin, Illinois, Michigan, Indiana, Ohio

Distribution of Terrestrial Snakes in North America

Occurrences in
NW	the Northwest
N	the North
NE	the Northeast
W	the West
C	central areas
E	the East
SW	the Southwest
S	the South
SE	the Southeast
X	most areas
?	unclear

Literature on the distribution

Pit Vipers

Agkistrodon spp., Moccasins

Agkistrodon contortrix	S	S Illinois, S Indiana, S Ohio
Agkistrodon piscivorus	S	S Illinois, Indiana

Crotalus spp. (without Crotalus durissus sspp.), Rattlesnakes

Crotalus horridus

W+S

Sistrurus spp., Pygmy rattlesnake and Massasauga

Sistrurus catenatus

X

S Wisconsin, Illinois, N Indiana, Ohio