Homoptera are similar to the Hemiptera true bugs. In addition to differences in the origin of their sucking mouthparts, Homoptera have a uniformly thickened forewings that overlap slightly at the tips. Homoptera groups include cicadas, leaf hoppers, whiteflies, aphids and scale insects.
With an exclusive diet of plant juices, leafhoppers produce a sweet byproduct known as honeydew. This substance often inspires mutually beneficial relationships with ants where honeydew is traded for a little ant protection. Some species of leafhoppers are pests of cotton and wine plantations and damage their plant hosts with a digestive liquid they inject in order to dissolve chlorophyll. They are elusive insects capable of impressive jumping and flight if needed.