TO 



COUNT GASTON DE SAPORTA, 



OK ATX IN PIKIVKNCE, 



WHOSE EXTENDED MEMOIRS ON THE, FLORA OF THE TERTIARIF.S OF SOUTHERN FRANCE FORM THE BASIS 

 OF THE BIOLOGICAL CONCLUSIONS OF THIS ESSAY ; AND WHOSE UNWONTED COURTESIES HAVE PERMITTED 

 A CAREFUL EXAMINATION OF THE MOST IMPORTANT FOSSIL BUTTERFLIES, 



THIS MEMOIR IS RESPECTFULLY INSCRIBED BY 



THE AUTHOR. 



