LEPIDOPtERA OF THE VAL d'hERENS AROLLA. 3 



opposite the Hotel du Mont Collon, provides plenty of sport with 

 PaDiassiits (hiiiis, which, however, is not verj- common, whilst among 

 the pines themselves, specimens often wander, and it is remarkable 

 that, with two successive strokes of the net, I captured here P. delins 

 and one of the two examples of P. apollo that I saw. At the corner, 

 near the hotel, too, Ant/iocaris siinplonia occasionally flew up rapidly, 

 and gave one a chance, as it kept to the edge of the trees, but all I 

 netted were exceedingly worn. Picris calUdicf was abundant on all 

 the high knolls around, but, on one dull day, during a few short breaks 

 of sunshine, I captured no fewer than four examples within 100 yards 

 of the Kurhaus itself. It is most abundant, however, on the steep 

 slopes to the left of the AroUa glacier, at a considerable elevation. 



Cdlias pliiroiiKiiie was everywhere, some in magnificent condition, 

 many, however, worn, but, on the whole, iiiuch smaller than the speci- 

 mens captured at Larche, the only other place where I have ever seen 

 it in absolute profusion on ground where it could be taken, yet, strange 

 to say, in spite of their average small size, I took one female larger 

 than any I have from any other locality. C. lu/ale, represented by two 

 examples in 1H99, and one in 1903, are quite pigmies, and the elevation 

 is evidently too great for the species. ( '. palaeno loves most the slopes 

 towards the Aiguilles Rouges, but is rather rare and often difticult to 

 catch. I took one pair in coj)., and was much disappointed to find that 

 the female, otherwise perfectly fresh and evidently newly-emerged, had 

 the apex of the left forewing gnawed off, as it were, possibly, one 

 supposed, by a lizard. Only one pale-tinted female occurred. The 

 specimens captured, too, are much smaller than those I have from 

 Davos, Guarda, Pontresina, Saeterstoen and Bossekop, and are nearest 

 the size of those from Mont de la Saxe. C. edusa was not observed m 

 the Combe d'Arolla at all. It is marvellous at what a height Picris 

 rapac occurs abundantly, well above 8000ft., and the specimens are of 

 large size, though I only saw one example of P. napi, a worn S , with 

 somewhat dark nervures, but not one of P. brasaicae. 



I have already stated that certain species appear not to extend their 

 range beyond the corner of the wood at the Hotel du Mont Collon. 

 This was certainly my impression with regard to Chn/adji/nDnts 

 vinianrcai', the $ s of which gave two forms, one very clear and brassy- 

 looking, the other much sull'used and with little coppery-brown in the 

 colour at all. At the same place, C yav.siihaljiiiia was rare; I did not see 

 more than half-a-dozen examples, and these not particularly good ; a 

 single 9 (-'• /n'pjiotlior, Poli/ouniiotns dainon, & single $ Mclitaca jdi(H'h(',& 

 solitary J yoniiadi'sseinianiiis: whilst Poli/ounnatiis corijdDn, P. hi/las, and 

 P. astrairJit' were much more abundant here than elsewhere, although, 

 extending some way up the slopes towards the Aiguilles Rouges, where 

 Ciiin'ilii iiiiniiiia also was not uncommon, a few fresh, but mostly worn. 

 Panifdtila nnintia and St/rir/it/iiis (dreiis, abundant here, seemed to go up 

 all the slopes for at least another 1000ft. ; whilst Pdh/oiiiinatiis nrbititlii.s, 

 somewhat smaller in size than the large Himplon examples, appeared 

 to reach almost as high as the highest ground on which I found 

 myself, at any rate, up to the level of I'lrcbia Icijijiona, K. i/onie, and 

 ?!. fflarialis. On the flat ground, which /'. d('liii>^ haunts, countless 

 thousands of Pltbeins ari/ns {anii/nKiiiniiioii) were to be found, and they 

 were almost equally abundant on the slopes, in suitaijle spots, but 

 Pnlj/diiiinatiis djitilrtr was very much restricted to the neighbourhood of 



