Mantis religiosa trademark
This is the same species of mantis that I shot a few days ago. Again found roaming my house walls at night (for all I know, this could be the very same insect...). The white thing you see at the top-right of the picture is actually the bottom of my mailbox, so you can understand that the insect is actually hanging upside-down on the wall! This capture is not that good, but I uploaded it because it showcases the Mantis religiosa trademark (see note).
Best viewed On Black, Large
Other shots of the insect that day:
and a few days before: