another one

I found another one...a Phalera Bucephala, Wapendrager, Buff-tip on the table
fallen from the oak.
This one held his rear end all the time upwards.
kind of funny sight....who knows why?
On his head is written a yellow Y (less bold) then the first one I posted a few days ago.

Even caterpillars are not all the same ones.
as one would think on first sight