@donhe Don, I'm about to go away for three weeks but if it is still there when I return I will take it into custody. I had Saunder's case moths on my Grevialea in the past and collected it. It took many months before the adult moth emerged.
@AlisonMilton : if this is a young instar (which do have untidy cases), and it matures while you are away, and reforms its case to the tidy version, how will you know this is the same individual ?