11mm long | July 8, 2011 | Victorio Siqueroli Park, Uberlandia, Minas Gerais, Brazil
This atypical treehopper belongs not to the family Membracidae, but to a separate family, Aetalionidae.
Searching around on the internet, it seems most photographers generally seem to catch these hoppers while tending their eggs, as shown here.
To learn a bit more about the family check out Ted C. MacRae’s post from earlier this year.
Reference:
[book:1554073456]
I never get tired of finding these. There is a different species in Mexico and southern Arizona.