Length: typically 5-8 mm in the genus; hopper in the photo 6.7 mm
Genus Melanoliarus was erected to contain most of the New World species formerly included in genus Oliarus.
A key characteristic of tribe is the presence of five pronotal carinae; hoppers in tribe Cixiini have three.
Photo location: Along the Rio Negro, Amazonas state, Brazil.
American Insects site