This lovely medium-sized swallowtail species is
found only on Corsica and Sardinia (to the best of
my knowledge).That makes it a rather desirable
and yet unlikely find to run across in most private
collections here in the U.S.
I am uncertain as to its present status. However,
even if common at times it may well be protected
from collecting of any specimens.
I found my wonderful example many moons ago in
another fine collection being parted out. I almost
overlooked it as it was pinned amongst a series of
some 10 Papilio machaon's. Fortunately, I had seen
pictures of the species in a couple of my books and
recognised it right away.