1901.] ^ 131 



perhapt^ was Picris Gallidice, which was pleiiliful in many places, at 

 the siunuiit of the Albuhi, and about the Berniua Hos]Mce and neigli- 

 bouring valleys especially. I fancy from hearing similar accounts of 

 the species from other districts that it was this season really more 

 abundant than usual. The same remark may apply to Lijccena Plicretcs 

 and urbilulus, that simply swarmed in portions of the Bernina Valley, in 

 the Heuthal, and elsewhere, as well as in the Tuoi Valley at Guarda. 

 Colias Falceno I never saw in such numbers, it was perhaps most 

 abundant on the slopes of what is called Muottas Pontresiua. Here 

 are thousands of acres of Vaccinium uUginosum, and a dozen or two of 

 C. Palceno would often be in view at once. 



Erehia Gorge was also extremely abundant, especially on the way 

 up to the Piz Lauguard and beyond the Hospice on the way to the 

 Alp Grum. The form at Poutresina was frio2)es, other varieties being 

 rare. At Guarda, where it was also common, the type prevailed, one 

 or two triopes and Eri/nis being however noticed. 



Colias Phicomone was much less abundant than G. PaJceno ; it was 

 frequent everywhere, but was only abundant in a mountain pasture 

 between Pontresina and 8t. Moritz. I am not prepared to be 

 positive that I saw either G. Hyale or G. Edusa. I brought neither back 

 with me. 



Parnassius Delius was locally abundant in one or two spots in 

 the Bernina Valley, and was especially common on the upper marshy 

 pastures of the Val Tuoi. P. Apollo was frequent, but abundant in the 

 immediate proximity of Guarda. 



The Melitceas were represented in great force by M. 31erope, and 

 in the upper regions of the Val Tuoi and in the Heuthal by an 

 abundance of a form that is, 1 sup])ose, M. PartJienie. These were 

 remarkable for the great variety in the markings of the upper-side, 

 hardly two specimens being quite alike. The females very dark, with 

 the ante-marginal row of rusty spots less obscured than the others, 

 so that they much ve'^emhle M. Asteria, which also occurred on the same 

 ground. 



31. Phoehe, Diet i/nna, and Afhalia were more or less common, especi- 

 ally on the lower ground near Guarda, and could always be discrimi- 

 nated from each other. Ji. Gynthia was abundant at the higher levels 

 everywhere, and didyma abounded at Guarda. 



The Argijnnes were more frequently seen than captured. A. 

 Pales was often abundant, and the profusion of A. Aglaia and Eris 

 at the mouth of the Val Tuoi and in many other places was most 

 exhilarating if not profitable. A. Amathusia was frequent, though not 



