GENERAL RESUME. 



83 



GENERAL RESUME, WITH NOTICES OF UNDETERMINED FORMS. 



Nine well authenticated fossil butterflies are now known, all from the Euro- 

 pean Tertiaries ; five of these have been found in the gypsum beds of Aix in 

 Provence, southern France, belonging to the Ligurian, a division of the upper 

 eocene ; one in the lignites of Rott in the Rhenish Provinces of Prussia, belonging 

 to the Aquitanian, or lower miocene; and three in the marls of Radoboj in Croatia, 

 Austria, appertaining to the Mayencian or middle miocene. Our present knowl- 

 edge, then, places the apparition of butterflies towards the end of the lower terti- 

 aries. 



