94 THE ENTOMOLOGIST. 



though it was still raining, but I walked over the Devil's Bridge 

 and through Andermatt to Hospenthal that night, in order to 

 get on my way betimes the next morning over the Pass. Fortu- 

 nately, August 3rd was fine, though in the early morning it was 

 dull and misty. But when I was well past the top of the Pass, 

 and had negotiated several of the zigzags on the way down, the 

 sun came out, and the rest of the day was brilliantly fine. I 

 soon saw Pontia callidice flying very fast over difficult ground, 

 but I managed to secure a male in very fine condition, and at 

 the same altitude I took Brenthis pales, Melitcea athalia, includ- 

 ing a nice banded form, and some good mountain forms of 

 Erebia goante. The number of species multiplied as I descended 

 towards Airolo, and among others I took or saw Papilio machaon, 

 Parnassius apollo (very plentiful), Aporia cratcegi, Issoria lathonia, 

 Argynnis aglaia (swarming), Pararge mcera (much brighter than 

 those I took in the Martigny-Chamonix district three years pre- 

 viously), Ccenonympha satyrion, Erebia pronoe, E.epiphron var. 

 cassiope, E. melampus, E. pharte, E. tyndarus, Melanargia 

 galatea, Chrysophanus virgaurcce (including two fine females, one 

 with the black spots on the upper wings developed into streaks 

 and a tendency to streaks on the lower wings, and the other with 

 similar markings on the lower wings, but the upper wings 

 normal), G. hippotho'e, C. dorilis var. subalpina, Nomiades semi- 

 argus (very common), Polyommatus corydon (swarming), and P. 

 pheretes. Some of the grass slopes by the side of the road were 

 literally alive with P. apollo, A. aglaia, P. mar a, C. virgaurea?, N. 

 semiargus, and P. corydon. I walked on through Airolo, as far 

 as Rodi-Fiesso Station, but by about 3.30 the butterflies were 

 disappearing, and I caught nothing more worth noting. I then 

 took the train to Bellinzona, where I stayed the night, and started 

 off towards Magadino, on the north-east shore of Lake Maggiore, 

 in the early morning of August 4th. This was also a brilliantly 

 hot day, and by about 9 a.m. the butterflies began to appear. 

 One of the first I took was Leptosia sinapis, and on the grassy 

 slopes along the roadside by the lake I saw Pieris rapce, Melitcea 

 athalia, Nemeobius lucina, Epinephele tithonus, Erebia cetliiops, 

 Celastrina argiolus var. argyphontes, Polyommatus icarus, and 

 Rusticus argyrognomon. Having walked to Luino, I took the 

 boat to Laveno en route for Milan. On the morning of Aug. 5th 

 I left Milan early for Laveno, whence I went across the Lake to 

 Pallanza. From there I walked via Fondo and Suna to Gravel- 

 lona, Toce and Domo d'Ossoia, and during the first half of the 

 time it was rather uncomfortably hot. However, I soon got 

 among the butterflies, for I was hardly out of Pallanza when I 

 saw Papilio machaon, Pyrameis atalanta, and males of Colias 

 edusa, flying at a great pace between the road and the Lake. 

 Rusticus argyrognomon was plentiful on the road, and kept settling 

 among the scanty herbage between the tram-lines. I soon came 



