Need help identifying these bugs in Northern California...

Images are zoomed in they are less than a 1/4 inch. 1 image is top view other is bottom after smashing.

Looks like a type of leafhopper


J

green one is a http://en.wikipedia.org/wiki/Sharpshooter_(insect). they tend to bore into the stem and disrupt flow and spreading infection. My experience is they are very quick to evade as they can see very well, so place a hand opposite of the branch to flush them towards you, and use your other hand to smash/flick it against the trunk/branch. The sooner you remove them they better.