Tattered Question Mark butterfly
Question Mark (Polygonia interrogationis) is the name of this butterfly after much searching on the Internet. Compared to other photos, this little thing is quite tattered and a bit pale. It had a little rest on the patio chair cushion then fluttered off.
I only seem to capture tattered butterflies like this yellow Eastern Tiger Swallowtail last year. Southlake Hospital has a meditation room with silk butterflies.