Garden Pests and Diseases: Black squishy bugs, 0 by SoCal

SoCal wrote:
I'ts been so hot here, that I haven't gone out to the garden for several days. Last evening, I finally took a walk around the garden and noticed my Candida Dbl White was being decipated by something. I cut off several of the infected areas and found the culprits, but I don't have any idea what they are. They are black bugs that when squashed turn green and mushy. They seem to be in clusters. I am going to have to cut back this Brug severly to get rid of all the bad foilage and then spray like the devil.

Here is a picture of the leaf with some of the ugly bugs. Does anyone know what they could be?

Donna