What snakes are actually hazardous in Indiana?
There are four species of venomous snake native to Indiana and vicinity that actually pose a threat to persons who are bitten. They are all "pit vipers" of the subfamily Crotalinae, and have heat-sensing structures in pits on the front of their faces.
Because there are so few venomous snakes in Indiana, we can impose some simple rules to
help you to identify them. These rules will not work outside of this
state or with exotic species.First of all, no snakes in Indiana or nearby with stripes running down their bodies are venomous. As mentioned above, all of our dangerous snakes have pits in addtion to nostrils on their faces. The pupils of our venomous snakes