These pests are sensitive to motion. They will maintain their parallel
the vine yet scoot around to the opposite side of the vine when motion is detected.
Thus, I often notice them when handeling the vine and they move to my side of
the vine because my hands or fingers were on the other.
This may be a dead adult glassywinged sharpshooter (that had been sprayed
about 1/2 inch
You can see that these sharpshooters or leaf hoppers, although the shape
have distinctly different coloring. about 1/4 inch