Lots of squares

I found this Ruddy Darter (it's name, not my language) loitering at the lounge window this afternoon, so of course it had to be photographed, which isn't easy one-handed.  I don't think I've ever come across one before, in or out.

I've added a colour version in the extras.

It rather suits the "Square" challenge as there are dozens of them on its wings.