LIST OF BUTTERFLIES FROM THE RHONE VALLEY. 95 



In August, 1901, in those different districts, being a month 

 later, I naturally expected to find many new things, but these 

 anticipations were not realized, very few new species were ob- 

 served. Many had disappeared, many still lingered on the 

 wing, and a few were represented in their later broods, as Colias 

 hyale, Pararge megcera, &c., in the Pfin Forest. Pieris hrassicce 

 was much more common and generally distributed than I had 

 previously observed it ; and on the Simplon, Erehia goante was 

 very plentiful, as also was Pieris callidice in the neighbourhood 

 of the Schwarzee, on the Matterhorn. 



The undernoted are the additional species and varieties 

 taken or seen during these two seasons : — 



PaPILIONIDvE. 



Papilio podalirius. — This species, which, as above indicated, was 

 not seen in 1899, although assiduously looked for, was sparingly seen 

 and taken on the road between Aigle and Le Sepey in early July, 1900, 

 and also a few days later in the Pfin Forest. In August last it was 

 very common in the latter locality, far more common than P. machaon. 

 One white example of P. x>odalirius was taken at Aigle, July, 1900 ; 

 and another, a fine specimen, was secured in the forest in August, 1901. 



P. machaon var. aurantiaca. — One of this variety netted on the 

 Simplon route above Berisal, and one or two others seen in the Pfin 

 Forest, July, 1900. 



Parnassius apollo var. pseudonovdon. — One male near Aigle on the 

 Le JSepey road in 1900. 



P. mnemosyne. — Common in a field below Berisal from 15th to 

 18th July, 1900, the males being mostly worn and scarce ; but the 

 females were not difficult at this late date to obtain in good condition. 



PlERID^. 



Pieris daplidice. — A few captured in the Pfin Forest in July, 1900, 

 and in August, 1901, it was to be taken freely; a fine brood, nearly 

 all in splendid condition, in the same locality. 



Leptidia sinapis var. diniensis. — Common in the Pfin Forest last 

 August. 



Colias palano. — Occasionally on the top of the Simplon and at the 

 Ganter Bridge below Berisal in July, 1900. Also one pale male taken 

 in the Pfin Forest the same year, which I believe is a low elevation for 

 it in Switzerland. 



Lyc^nid-e. 



Zepliyrus quercus. — One netted near Aigle in July, 1900. 



Chrysophamis viryaitrecE, var. zermattensis. — Common by the side of 

 the road at Berisal, and frequently at Zermatt, and in a field in the 

 Zmutt Thai, August, 1901. 



Lycmna aryus var. ayidion. — One of this blue variety of the female 

 taken at Visp, and another near Looche in August last. 



L. zephyrus var. lycidas. — Between the second refuge and the 

 Ganter Bridge on the Simplon road, which I believe is the best 

 locality for it, I secured a series of this interesting blue between the 

 15th and 18th July, 1900, and probably more would have been taken 



