58 
Pass, other interesting species are met with ; Malacosoma alpicola, so 
closely allied to our common M. neustria, was frequently represented by 
odd specimens of full-grown larvae, and at one place the colonies of 
younger larvae on the turf of the open hill-side were quite common. The 
young larvae are practically indistinguishable from those of M. neustria ; 
the full-grown ones are without several of the longitudinal lines that 
persist in that species. Brenthis pales was just coming out, and we 
failed to capture one remarkable specimen we saw, that was little, if at 
all, larger than Cupido minima. A nice form of Anarta melanopa flew 
freely at the top of the pass, but we did not learn how to capture it as 
freely. Mr. Edwards, however, succeeded in the even more difficult 
task of bagging Pieris callidice, of which hardly a specimen escaped him. 
He was equally expert in finding specimens of several species of 
Gnoplios freely on rocks, where Dianthoecia caesia and some other 
Noctuids were found. 
On the slopes close to Fusio a very splendid metallic green beetle 
with pink stripes ( Oreina , sp.) was abundant. The polymorphism of 
this beetle was very interesting, and even puzzling. We met with it 
again at Macugnaga, and distinct differences in the forms prevalent at 
the two places were obvious. At Fusio, the mass, including nearly all 
J s, were green, but some black males were not uncommon, as well as 
a few blue ones. At Macugnaga there were many blue males, as well 
as both males and females of the black colour and females of the blue 
form. The presumption that there were three species was very strong 
until they were found in cop. in various combinations. 
I have brought practically all my captures for your observation—the 
good, bad, and indifferent—thinking that a longer series gives a better 
idea than a short one of the general facies of a species and of the range 
of its variation in the district illustrated, and that this outweighs any 
feeling I might have of being ashamed of showing you bad and ill-set 
specimens. At the same time, I may say that of many species that 
were common, I only took a specimen or two, and of some took none, 
or handed them over to other members of our party, as Papilio podalinus, 
P. machaon , Syrich thus sao, Parnassius deltas, Spilothyrus alceae, 
Anthocaris belia, &c. 
The following list would, I think, include all the butterflies we saw 
or took :— 
Papilio machaon. 
,, podaliriut. 
Parnassius apollo, frequent. 
„ clelius, Simplon. 
Aporia crataegi. 
Pieris brassicae. 
„ rapae. 
,, napi. 
,, callidice, Fusio, Ac. 
Euchloe cardamines, Fusio, Ac. 
Leucopliasia sinapis, ,, 
Colias palaeno, ,, 
,, phicomone, ,, 
„ hyale, 
Gonepteryx rhamni, ,, 
Callophrys ruin, ,, 
Ghrysophanus gordius, Simplon. 
,, eurybia, Fusio, Ac. 
,, dorilis, ,, 
„ phlaeas, ,, 
Plebeim aegon, Fusio, Ac. 
,, argus, common. 
Polyommatus optilete, Macugnaga. 
,, orion, Bignasco. 
,, pheretes, Fusio, Ac. 
,, orbitulus, Evolena abundant, 
Simplon. 
,, astrarche, Fusio, Ac. 
,, eros, ,, 
,, icarus, ,, 
,, eumedon, Fusio, Macugnaga. 
„ escheri, Fusio. 
,, corydon, abundant. 
,, liylas, Fusio, Ac. 
,, donzelii, Simplon. 
Cyaniris argiolus, Fusio. 
Cupido minima, abundant. 
Nomiades semiargus, abundant. 
Lycaena alcon, Fusio, Macugnaga. 
,, arion, frequent. 
