Basilarchia astyanax

from The Collaborative International Dictionary of English v.0.48

Ursula \Ur"su*la\, n. (Zool.)
   A beautiful North American butterfly ({Basilarchia astyanax}
   syn. {Limenitis astyanax}). Its wings are nearly black with
   red and blue spots and blotches. Called also {red-spotted
   purple}.
   [1913 Webster]