Geographical Distribution of European Rhopalocera. 483 



III. Russia to the North of Poland. — This district only con- 

 tains seventy species as far as I know, and the only peculiar 

 species is Argynms Eugenia, which occurs in the Ural Mountains 

 and in Eastern Siberia. 



IV. Poland and South Russia. — This district is richer in 

 butterflies than almost any other part of Europe, as it boasts of 

 no less than 205 species, of which 27 are peculiar to it. 



V. Turkey and Dalmatia. — It is probable that this is also one 

 of the richest countries of Europe, but I only know of 46 species 

 which certainly occur there, including 9 peculiar species. 



VI. Greece. — I can only enumerate 18 species as occurring in 

 Greece, though I think it likely that ten times that number may 

 be found there. Of these, 4 are peculiar species. 



VII. Italy. — One hundred and fourteen species occur in Italy. 

 Pamphila JElna is the only species which, as far as I know, does 

 not occur in any other part of Europe. 



VIII. Corsica and Sardinia. — These islands contain 30 species. 

 Three of these are peculiar species, and several of the others are 

 sub-species, which are not yet sufficiently developed to be raised 

 to the rank of species, although some of their larvae differ from 

 those of the parent species. 



IX. Spain and Portugal. — The Peninsula, which has been well 

 worked by Rambur, appears to be surprisingly poor in butterflies, 

 as I am not aware of more than 115 species which occur there, in- 

 cluding 5 peculiar species. No less than 20 of our very limited 

 number of British butterflies are wholly wanting, at least in the 

 south of Spain. These appear to be all Central European species. 

 Tliey are A, Cardamines, M. Athalia, A, Selene, A. Euphrosyne, 

 A. Pap/iia, V. lo, V. Anliopa, A. Irh, M. Galalhea, H. Hyperan- 

 thus, C. Davus, E. Epipkron, E. Medea, N. Lucina, T. Betulce, T. 

 fV.- album, T. Pruni, C. Hippothoe, P. Arion, and C. Paniscus. 



X. France. — This country is very rich in Rhopalocera, contain- 

 ing in round numbers about 200 species. The only species which 

 I have not recorded as occurring in other parts of Europe are 

 Polyommatus Lefebvrei, and P. Hopfferi. However, as P. Hopfferi 

 occurs in Asia Minor, and Staudinger does not consider it Euro- 

 pean, I think it very probable that Menetries was in error when 

 he stated that the insect occurred in France. 



XI. Britain. The most authentic British species do not num- 

 ber 70, every one of which occurs in France, and the only peculiar 

 form* is the sub-species Polyommatus Artaxerxes, 



* Chrysophanus Hippnthoe, var. Dispar, is, I believe, occasionally found on 

 the Continent, and is also common in Egypt and Nubia ; but I can give no 

 authority tor these statements. 



