THE LEPIDOPTERA OF THE GRISONS PREDA AND THE ALBULA. 207 



grass i'oenonymplta satyrion was not uncommon, but going over. The 

 whiteness of the underside band was very marked, and, although on 

 the marshy ground it was not noticed that the spotting in this band 

 was scanty, yet on the slopes it was so, and one or two beautiful ab. 

 impunctata, Obth, [caeca, \Vh.), were captured. From the lovely 

 Lake Palpuogna to the Weissenstein Inn is a marvellous piece of 

 collecting ground. One wants to get well up on the steep banks 

 to get the full value of them, and here, too, were gallons of ripe 

 bilberries, of which also we took full advantage. Here on one 

 workable flat piece of ground Adkinia coprodacti/la was found, 

 difiticult at first, owing to its unifoi'mity of tint, to name with cer- 

 tainty, but a fair series was captured. Here, among other things, too, 

 were Heodes virgaureae, the 2 s dark, but the ground colour golden, 

 and not of the zeruiattensis hue. Melitaea dictynna going over, the only 

 Melitfeid observed, and, buzzing in the sun, a <? Malacosoma alpicola, 

 of which a pair, in copula, were afterwards picked up. There were 

 several blue butterflies on this bank, the 3 s, however, much more 

 frequent at the runnels on the path. These incbxAedi Ayriades corydon, 

 Plebeius aryyroynomon (argiis), Folyonnnatus eros, P. orbitidus, Cyaniris 

 seniiaryus, and, near the inn, quite a number of Cupido miniwiia, mostly 

 worn, but some in fine condition, and, on the big heads of Anthyllis, the 

 eggs were soon discovered. A single large <? Polyoimnatus icarns was 

 taken, and near the inn a single 3 Ayriades bellaryus, a most interest- 

 ing take at this elevation. Here also were some worn Loneia sfibalpina. 

 At the Weissenstein inn, a mere relic now of the old coaching days, 

 the streams from the neighbouring mountains form many marshy flats, 

 and here Paniassiits deliiis flies, spread over a large area, but apparently 

 nowhere abundant. AWalongthevoiMi Hesperia alreus and Urbicola comma 

 are frequent, but nothing that could be referred to H. andromedae, which 

 is reported to occur here, was found. Issoria lathonia, Aylcds urticae, and 

 Colias pkicomone had been on view all the way, but here, at the inn, 

 the first examples of Colias palaeno and Melampias epipJiron were 

 observed. Many of the purely alpine species continued, but one had 

 to get well on between the inn and the Hospice, before the last species 

 of the district were reached ; then a fine large black Erebia swung over 

 from the slopes, the fuscous patch somewhat dull, and we have our 

 fisrt E. glacialis ; the small black Erebias on the flowering slopes are 

 Erebia yorye, mostly worn, whilst the E. lappona were mere rags. 

 The slopes behind the Hospice, and not on the side of the road, appear 

 to be the most prolific, and the lovely mountain-flowers, violas, 

 caryophylls, etc., are delightful. Up to the Hospice, giant Pieris 

 rapaf were occasionally seen on the wing, whilst beyond, at the 

 summit of the Pass, a fine large fresh J , P. braasicae, was taken, and 

 again Parnassius delias appeared ; Polyommatus pheretes seemed to be 

 generally distributed over all the higher slopes. On the 18th, our 

 boxes were all filled with the captures of the day by 2 p.m., and, as 

 the clouds came up and the sun was repeatedly obscured, we 

 returned fairly early to the setting, but the 19th was a perfect 

 day, and was spent between Preda and the lovely source of the Albula, 

 just beyond which, at about 7000ft. elevation, we took a very good 

 example of Brenthis eiiphrosyne on a thyme flower. But almost three 

 hours in the late afternoon was spent on the slopes below the Weissen- 

 stein Inn. Hardly a breath of air was stirring, and the Geometrids 

 and Phycitids knew it. Gnoplios obfiiscata, the males tremendously 



