Graphocephala fennahi (rhododendron leafhopper) is a species of shield bug native to the United States. Its common name derives from it feeding on the sap of rhododendrons. The species was introduced to Great Britain in the 1930s and continental Europe in the 1970s. There has been suggestion that the rhododendron leafhopper contributes to the spread of a rhododendron fungus through Europe.
^Sergel, R. (1987). "On the occurrence and ecology of the Rhododendron-leafhopper,Graphocephala fennahi young 1977, in the Western Palaearctic region (Homoptera, Cicadellidae)". Anzeiger für Schädlingskunde Pflanzenschutz Umweltschutz. 60 (7): 134. doi:10.1007/BF01907495.