72 THE REPORT OF THE No. 19 



On the 14tli July I met Mr. Wolley Dod at Lake Louise, where there is 

 a beautifully situated Biountaiu hotel (altitude 6,000 feet) two miles from 

 Laggan. Here we spent a week, of which the first four days were dull, cold, 

 and miserable, with very occasional gleams of sun and frequent storms of 

 hail and sleet; then came three days of perfect weather, such as the moun- 

 taineer and butterfly hunter dreams of for years afterwards. We made the 

 best of our luck. B. astarte, B. alberta, Ch. Beani, Chrys. Snowi, Lycsena 

 aquilo (Orbitulus var Franklini), Colias elis, C. nastes, and others, filled our 

 boxes to overflowing. 



On the 25tli, Mr. Wolley Dod returned home, and I went into camp at 

 Hector, just at the summit of Kicking Horse Pass (5,190 feet). I spent the 

 remainder of the summer camping in the Rockies. 



I thoroughly worked the Lake O'Hara district, on the south-western side 

 of the great mountains whose northern precipices enshrine Lake Louise and 

 her sister lakes. Then, returning eastwards to Banff, I went three days' 

 march (about fifty miles) south-westwards to Mt. Assiniboine, a splendid 

 peak 11,800 feet high, just west of the Divide, and the southernmost outlier 

 of the glacier fields of the northern Rockies. Here I spent five days, in fine 

 weather, though the nights were frosty, and then a week's march brought 

 me to Field, and I encamped at Emerald Lake, about eight miles north of 

 Field, and well on the western slope of the Divide. Here we were close to 

 the Yoho Yalley, where there is a National Park reserve and splendid scen- 

 ery. It was August 19th, when three days of bad weather set in, which de- 

 layed me, and killed the butterflies. For although we afterwards had five 

 splendid days in the Toho, and made excursions right on to the great Wah- 

 putek glacier, I caught very little. A battered B. astarte, a much-worn B. 

 alberta, a few Colias minismi, and several fresh Grapta zephyrus were all 

 my captures. 



I greatly regret my late arrival in the Yoho, as I believe that earlier in 

 the season I might have found different insects to those I caught on the sum- 

 mit and eastern side of the Divide. Prof. Macoun, the celebrated botanist, 

 told me that during two days' plant collecting around Field he gathered no 

 less than forty-two species of plants which do not grow east of the Kicking 

 Horse Pass, and the same variety might probably occur among the Lepidop- 

 tera. 



Around Lake Louise, Lake O'Hara, and Lake McArthur, all high Alpine 

 lakes, surrounded by glacier mountains, I took much the same butterflies, 

 more or less commonly. Mt. Assiniboine afforded some variety. I took 

 Parnassus smintheus var. Behri only at Simpson's River, about twenty miles 

 north of Assiniboine, in a steep gorge with rock faces, above tree level. B. 

 amphirape (or myrina) swarmed on the wet ground near Lake Assiniboine. 

 Everywhere Brenthis astarte was to be seen (though not generally to be 

 caught) on every rocky peak over 8,000 feet, and Brenthis alberta was equally 

 well distributed at a rather lower level. With Astarte, on the highest sum- 

 mits, Ch. Beani was invariably abundant, and Chrys. Snowi shared the 

 haunts of Alberta, only it was rather less .common. Ly. aquilo was to be 

 had still lower down, rather local, but very common where it occurred. It 

 fairly swarmed on the damp path at the head of Lake Louise, and on a warm 

 and very steep slope above Lake O'Hara. Colias minismi was very common 

 everywhere on grassy slopes from 5,500 feet to 6,500 feet, whilst the beauti- 

 ful orange Elis was less abundant and flew at a higher level. C. nastes was 

 very common, on all the highest grass, and varied a good deal. The speci- 

 mens I took on Mt. Assiniboine were generally paler than those from the 

 more northern mountains. Melitea anicia var Beani and a small mountain 

 form of probably M. rubicunda, occurred on all the higher slopes of Lake 



