by William Swainson, Zoological Illustrations Series II… (1829)
“ We have elsewhere shewn that all aberrant forms unite into a circle of their own. Now as Erina, Lucia, and Naïs, are the aberrant forms of the genus Polyommatus, so there should be species either in the first or the last,—that is, in Erina or Naïs, which would exemplify this theory in the present instance. ”
