Synonyms and other taxonomic changes
Umbonia crassicornis (Amyot & Serville)
Orig. Comb: Physoplia crassicornis Amyot and Serville, 1843
variable in size, color and structure of male pronotal horn; young nymphs have three horns
FL peninsula, southmost TX to S. Amer. - Map (2)(3)
(common in FL)
Numerous legumes and other ornamental and fruit trees
In FL, adults and nymphs can be found all year. Reports of heavy infestations have been received in all seasons, but probably more have come in during the cooler months. - University of Florida
Both young and adults feed on the same trees. Many times both are found together in clusters on branches.
The female actively tends her brood or colony of 15-50 individuals
U. crassicornis has been the subject of studies on parental care and communication
Butcher, F.G. 1953. Unusual abundance of the tree-hopper Umbonia crassicornis A. & S. Florida Entomologist 36: 57-59.