Glassy-winged sharpshooter - Homalodisca vitripennis [2]
Family Cicadellidae - Leafhoppers / Subfamily: Cicadellinae
Live adult sharpshooter photographed at Zilker Botanical Gardens, Austin, Texas.

Glassy-winged sharpshooter - Homalodisca vitripennis
Photo courtesy Roy Niswanger

"Sharpshooter" is one common name for the leafhopper subfamily Cicadellinae, which includes Paraulacizes, Oncometopia, Cuerna, Draeculacephala, Graphocephala and many other genera. They get this name from their habit of feeding on the watery sap of xylem tissue, which conducts moisture from the roots up to the leaves. Excess water droplets are forced out the tip of the abdomen (Fig 1.) with an audible popping noise, hence the common name. [1]

Silver Leafhopper, Athysanus argentarius
Figure 1. Silver Leafhopper, Athysanus argentarius

References
  1. Bugguide.net, Subfamily Cicadellinae
  2. BugGuide.net, Homalodisca vitripennis (Glassy-winged sharpshooter)