Are those squares really 2x2mm? I would have thought 4x4mm. Still pretty convinced no 4 is a LBBYU
. Can you remember if it had a greenish under body looking head on? It's a bit worn, though, and that colouring fades so this may not tell us anything.
Don't think that last one is Straw Dot - look at the outer wing shape. I suspect it will forever remain a mystery.