'Basilarchia astyanax' definitions:

Definition of 'Basilarchia astyanax'

From: GCIDE

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]