248 THE ENTOMOLOGIST. 



one has difficulty in separating the two species, except that 

 P. orbifer is somewhat browner in colour ; a few examples also 

 of Hesperia alueus were flitting about with the other two specie?. 



The hill culminates in a bare ridge, commanding a fine view 

 of the plain and the river Danube ; here freshly emerged 

 Parnassius mnemosyne were not infrequent, these being distinctly 

 larger than my Swiss examples, and having the black blotches 

 in both sexes smaller, darker, and better defined. An odd 

 Chysophanid turned out to be a female of C. thersamon, a new 

 species to me, and also a good example of Melitcea trivia was 

 netted, but not recognised until I got home. 



We paid further visits to Svab-hegy on the 3rd, 5th and 7th 

 of June, and were rewarded each day by interesting species, 

 including the fine form of Polyommatus orion var. ornata, not 

 uncommon in the oak glades amongst the sedum plants; 

 Melitaa trivia was not infrequent, but very local, some of the 

 specimens being already past their best. But by hard work I 

 managed to get together eighteen or twenty good examples. 

 M. trivia is easily recognised in flight from its confreres, for it is 

 the swiftest species of the genus I have seen ; and this habit, 

 with its small size, makes it difficult sometimes to follow with 

 the eye. From its nearest relation M. didyma, the lesser size and 

 darker colour serve to distinguish M. trivia at once, whilst from 

 the only species of its size flying at the same date, M. aurclia, 

 it is at once separated by the more rapid flight. In one field 

 M. aurelia was abundant. I used to think that specimens of 

 this species, or those that I could not separate from it, taken at 

 high altitudes in Switzerland, flying with M. parthenie var. 

 varia, were only forms of the latter, and I do not know that this 

 opinion has been much changed since ; but certainly M. aurelia 

 seems distinct enough in Hungary from any other species of 

 the genus, the specimens being strictly typical and showing no 

 approach to M. parthenie or to any other species ; and being at 

 once distinguished from M. athalia, which was flying at Buda- 

 pest in early June, by size and general appearance. M. didyma 

 was Just emerging; the examples were brightly coloured and 

 of good size. I was much surprised to net, in a glade at 

 the top of the steps before-mentioned, a fine example of Neptis 

 lucilla, a species I had not expected to come across at Budapest. 



I had been provided by my friend Mr. A. H. Jones, who 

 most kindly placed at my disposal the results of his successful 

 visit to Hungary two years previously, a letter of introduction 

 to Herr Aigner of the Budapest National Museum. Accordingly 

 we called there on May 31st, but learnt that Herr Aigner had 

 been unable to follow his duties at the Museum for a consider- 

 able time ; and I am sure all who are interested in entomology, 

 especially those who have visited Hungary, will greatly regret 

 that his long illness terminated fatally in June. 



