Now that you have started looking at the moths and caterpillars in your backyard, you will want to learn more about them. With an estimated 5,000 moth species occurring in Colorado, 15,000 in North America, there is no single guide that will cover all the moths or caterpillars you may find. There are some wonderful
references where you can begin. We suggest that you use these resources in combination to learn a great deal about the moths that inhabit your backyard.
There are a few websites where you can have your moth identified by other moth enthusiasts.