The Shieldback Katydid

Suborder Ensifera - Long-horned Orthoptera Family Tettigoniidae - Katydids Subfamily Tettigoniinae - Shield-backed Katydids

Shieldback Katydid -                  either western shieldback (Ateloplus hesperus) or noted shieldback (Ateloplus notatus) or splendid                        shieldback                   (Ateloplus splendidus)

(source:google/http://kern.audubon.org)