( xxi ) 



lappona, and therefore reverses the order of E. pyn-ha and 

 the E, manto of Esper. 



6. I kept E. pluto, tjlacialis and alecto as distinct species, 

 and nerine as a variety of the last mentioned ; Staudinger 

 considers the first three to be forms of one species and nerint 

 as distinct. 



7. I gave E. stygne as a variety of E. pirene of Esper, on 

 the ground that the latter had forty-two years' priority ; 

 Staudinger reverses this without giving any reason beyond 

 the fact that Linnaeus had described another butterfly under 

 the similar name of Papilio pyrene. 



8. I gave E. maunis, Esper, priority over E. mdas, Herbst, 

 because Esper's work is dated 1777 and Herbst's 1796 ; 

 Staudinger reverses the order under the supposition (he gives 

 the date with a query) that Esper's species was described in 

 1798 : in cases of uncertainty surely it is better to take the 

 printed date. 



9. Staudinger differs from me in considering the E. pronoe 

 of Esper identical with E. arachne, whereas I considered it 

 to be E. neoridas ; he therefore sinks E. arachne as a synonym, 

 and quotes no synonyms to E. neoridas. 



10. As already pointed out, E. medea is sunk as a synonym 

 of E. (Bthiops, and, if Staudinger is correct, on sufficient 

 grounds. 



11. I regarded E. stygne, Fischer, and E. sedakovli, H.-Sch., 

 as probable varieties of E. neoridas ; Staudinger places them 

 as a distinct species next to E. neoridas. 



12. I placed E. tedakovii, Eversm., as a slight variety of 

 E. ligea; Staudinger thinks it the same as E. sedakovii, 

 H.-Sch. 



13. I called E. eumonia a variety of E. ligea; Staudinger 

 puts it separately with a query, and a doubt whether it is 

 not a variety of E. ligea ; practically here there is no 

 difference. 



14. The synonyms E. evias and bonelli are reversed by 

 Staudinger, in consequence of information received (subse- 

 quent to the publication of my Catalogue) respecting the 

 dates of Hiibner's figures. 



But it is hardly worth while to continue : differences of 



