ON BUTTEJftFLY-COLLECTING IN THE ALPS. 167 



railway, between Bardoneche and Susa, and after a day there, proceeded to 

 Turin. Spending the Sunday there, we, after a good baking, were glad to 

 get away early next morning, and travel by rail to Arona, and then up the 

 lake by steamer to Baveno. Baveno being hot and crowded, we left next 

 day, and drove up the Yal Anzasca to Ponte Grande, a charming village 

 about 2500 ft. above the sea, with a lovely view of Monte Rosa. Finding 

 good quarters here, we stayed several days (from July 1-5). The Val 

 Anzasca is a good example of an Italian alpine valley, and proved like- 

 wise very productive in insects, though the weather was not as fine as it 

 might have been. We only had one really fine day, July 3rd, and on 

 that Mr. Salvin and I working down the valley towards Vogogna, saw or 

 caught fifty-two species of butterflies, not a bad day's work for one 

 morning between 8 A.M and 2 P.M. In this valley below Ponte Grande 

 alpine and southern species were curiously interblended, as evidenced in 

 such forms as Neptis and Libyfhea occurring with Parnassius and other 

 mountain insects. From Ponte Grande we went further up the valley 

 to Macugnaga, and after spending a day there, over the Monte Moro 

 pass (about 9000 ft.), and down the Saas Thai to Saas, and eventually 

 Visp. After this, except for an hour or two near Bienne, on our way 

 home, we had no occasion to use our nets. 



The total number of species of Rhopalocera seen or caught by us 

 during the trip was 103, and, had the weather been finer, this number 

 would, doubtless, have been increased. We altogether missed numbers 

 of common Alpine species, as owing to the unusual amount of snow that 

 had fallen during the winter, the season was extremely backward, so that 

 had we started a fortnight later, our " bag " would, no doubt, have been 

 correspondingly increased. A list of some of the more uncommon 

 species we obtained is appended. 



Papilio podalirius : Chambery, Col du Lautaret, Briancon, &c. 



Parnassius apollo : Val Anzasca, Col du Lautaret, &c. P. mnemosyne \ 

 Val Anzasca, above Ponte, Macugnaga. 



Pirn's napi, var. bryonice : several near Macugnaga. 



Anthocharis belia, var. simplonia : rather common towards, and on, the 

 top of the Col du Lautaret. A. euphenoides : this truly Mediterranean 

 species occurred, but not commonly, at Briancon ; one specimen was seen 

 at an elevation of about 5000 ft., on the road towards Mont Genevre. 

 All seen were males. 



Leucophasia duponcheli : Oulx (?) and Briancon. At the time we did EntM.M.xvi. 

 not distinguish this from the common species, so only got two or three P- 258 ( 188 )- 

 specimens. According to M. Bellier de la Chavignerie (Ann. Soc. Ent. 

 France, 1869, p. 514), this species is, in France, almost confined to the 

 lower parts of the Basses Alpes, and the neighbourhood of Digne, and 

 Aix in Provence. 



Colias edusa, var. helice : Oulx, Chambery, &c. 



