Butterflies of Bulgaria. 193 



nized by me at the time on accouut of its small size, but 

 can, I think, belong to no other species. Haberhauer 

 found it rare at Slivno. 



31. L. Of ion, Pall. 



Not common near Rilo Monastir in June ; common at 

 Slivno. 



32. L. baton, Berg. 



Found at Slivno, but not seen in Rilo Dagh. 



83. X. astrarche, Bgstr. 



Not uncommon at 3000—4000 feet. 



34. L. anteros, Frr. 



This was a common insect in the Rilo Dagh and Balkans 

 from 4000 to about 5000 feet. The males are easy to 

 recognize by their brilliant colour, but the females are 

 sometimes easily confused with those of the last species. 

 By the end of June it was difficult to find a fresh male, but 

 the females were in some cases still fresh in the middle 

 of July. 



35. L. eroidrs, Friv. 



I first foimd this in a meadow near Rilo Monastir on 

 July 3rd, where it was rare ; and on July 14th near 

 Kostenetz at about 4500 feet it was commoner on a steep 

 hillside among bushes. The male is easy to recognize by 

 its bright blue colour, but the female is liable to be con- 

 fused with that of icarus. I see no reason why this should 

 any longer be treated as a var. of eros, which, as far as I 

 know, is in Europe always an Alpine insect and constantly 

 much smaller. 



Eroidcs occurs, though it has not recently been taken, in 

 some (to me unknown) locality in Prussian Po\and, and also 

 in the Balkans and at Sarepta. I believe that Frivaldsky 

 also took it in Crete, but it is not yet recorded from Greece 

 or from any part of the Carpathian Mountains. 



3G. L. icarus, Rott. 



Common at the foot of the mountains. I found a very 

 smnll variety of which the males were worn and the 



