Developmental Stages of Spissistilus festinus Most Susceptible to Hemipteran Predators - Suggests that S. festinus nymphs are potential prey for G. punctipes and N. roseipennis in the field. Text version of Florida Entomologist article, with a hyperlink to the PDF version. Umbonia crassicornis (Thorn Treehopper) - Photos, scientific classification, physical traits, range, habitat, and diet. Interactive Key to Tribes of New World Membracidae - Interactive key to members of this tribe and taxonomical databases. Treehopper - Information from Wikipedia on the insect family, Membracidae, often known as thorn bugs because of their enlarged thorax which resembles a thorn. Horned Treehoppers - Family Membracidae - Offers information about the species found in the Brisbane area, Queensland, Australia. Includes photographs. Platycotis vittata: Oak Treehopper - Provides photographs and a description of this insect, its distribution, life history, behavior and host range. Umbonia crassicornis: Thorn Bug - Provides photographs and a description of this pest of ornamentals and fruit trees, its distribution, identification, biology and host range. Oak Treehopper: Platycotis vittata - Distribution, description, life history, behavior. Includes photographs and references. Thorn Bug: Umbonia crassicornis - Distribution, description, life history, behavior. Includes photographs and references. Oak Treehopper - Images of adult and nymph.