I think that this is the one that fell off the unfinished cocoon between two leaves. It has been very sluggish and hasn't fed for two days. Also it is thicker and shorter than the bigger larvae were a couple of days ago (12 mm).
Between 12/2/09 and today, 12/10/09 I have kept these larvae indoors, but today I put them outdoors in a container between paper towels. I hope that they hibernate and that I get to see the adults.