Species

Cicadas are not harmful to humans and they rarely cause significant plant damage. However, the eggs are laid in slits in twigs, so during large emergences of periodical cicadas they can cause substantial damage to branches of trees and shrubs.  
There are about 230 species of amphibians, including about 140 species of salamanders and 90 species of frogs and toads, that can be found in the continental United States.Learn more: Checklist of Amphibian Species and Identification Guide for lists of...