Length: typically 6.2-6.3 mm
Leafhoppers in the genus Acinopterus feed on grasses and herbaceous plants. Often the characteristics of the male internal genitalia are the only traits usable to separate the individual species.
There are 22 Nearctic species in the genus Acinopterus. Some of these species are also found in the Neotropics, and a smaller number of described species are found only in the Neotropics.
The leafhopper shown appears to be Acinopterus angulatus, but is somewhat paler than usual for this species (it may be teneral). Acinopterus angulatus is found in the southern and western United States, Mexico, the West Indies and—more uncommonly—in South America (Linnavuori and DeLong, 1977).
American Insects site