It is a leaf-footed bug nymph, and it is definitely a foe.
You can use properly diluted orange oil to kill them, and you can -- and should -- crush them (adults and nymphs) whenever you find them.
Here is more info:
http://insects.tamu.edu/fieldguide/aimg65.htmlThere are hundreds of different kinds of leaf-footed bugs, but all are leaf chewers.
One note, get familiar with your predatory bugs:
http://www.ipm.ucdavis.edu/PMG/NE/assassin_bugs.htmlas the nymphs of assassin bugs have somewhat the same body shape (but different coloring) as the leaf-footed bugs.
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God speed!
Cara
**
Take time to stop and smell the flowers!
(or... as my ladybug refrigerator magnet says
"take time to stop and
eat the flowers!"
)