Dmitry A. Dmitriev - Home page
- Interactive key to membracides and taxonomical databases. 3I software for creating internet accessible interactive keys and taxonomical databases.
- http://ctap.inhs.uiuc.edu/dmitriev/key.asp?key=Membr&lng=En&i=1&j=1

Umbonia crassicornis (Thorn Treehopper)
- Photos, scientific classification, physical traits, range, habitat, and diet.
- http://www.bugguide.net/node/view/4791/

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.
- http://www.fcla.edu/FlaEnt/fe78p561.html

Thorn Bug, Umbonia crassicornis
- Offers information on distribution, identification, hosts and seasonal distribution. Includes references.
- http://edis.ifas.ufl.edu/BODY_IN332

Oak Treehopper
- Images of adult and nymph.
- http://www.invasive.org/browse/subject.cfm?sub=957

Family Identification - Membracidae
- Describes morphological characters. Includes references.
- http://eny3005.ifas.ufl.edu/lab1/Homoptera/Membracid.htm