ON BUTTERFLY-COLLECTING IN THE ALPS. 169 



Aryynnis amathusia : common at Oulx, Dear Macugnaga. A. thore : 

 Godman caught a single specimen of this rather scarce species in the Val 

 Anzasca, above Ponte Grande. A. lathonia : common in the Val 

 Anzasca; this species seems fond of settling on the dusty roads, and has 

 a peculiar jerking flight, unlike the other species of Aryynnis. A niobe : 

 a single specimen of the typical silvery- spotted form at Briancon; 

 curiously enough, we saw nothing of eris, which is usually the commoner 

 of the two. 



Erebia melampus: Val Auzasca and Saas Thai. E. epipJiron, var. 

 cassiope: Saas. E. ceto: Col du Lautaret, Val Anzasca, and more 

 commonly near Macugnaga. E. medusa, Val Anzasca, Macugnaga, &c. 

 E. stygne : Col du Lautaret, Briancon. E. evicts : on the Col du Lautaret 

 near La Grave, but mostly worn ; also near Macugnaga. E. euryale : 

 Val Anzasca. 



(Eneis aello : not very uncommon near Macugnaga, and also caught in 

 the Saas Thai, between Stalden and Saas. 



Satyrus dlcyone : Val Anzasca and Saas Thai, common near Stalden. 

 S. semele, near Stalden. S. actcea, var. cordula : a few near Stalden. 



Pararge mcera : common everywhere in the alpine valleys. P. hiera : 

 Oulx, Val Anzasca, nowhere abundant. P. achine (=dejanira) : two 

 specimens in a wood near Bienne. 



C&nonympha arcania, var. darwiniana : Chambery, Baveno, and 

 jommon in the Val Anzasca. The alpine form satyrion occurred 

 sparingly in the Saas Thai. 



Spilothyrus althcece : we got two specimens of this rather scarce species 

 in the Val Anzasca. S. lavaterce : this skipper was not uncommon one 

 one hot day flying over the road in the Val Anzasca, but it was very 

 lively and difficult to catch ; we subsequently saw it again in the Saas 

 Thai, above Stalden. 



Syricthus cartliami: Briancon, Oulx, and Saas Thai. S. sao : near 

 Chambery, Briancon, Oulx. S. alveus : Saas Thai and Oulx. 



Hesperia tJiaumas : Ponte Grande, Saas Thai. H. lineola : Saas Thai 

 and Val Anzasca. 



Carterocephalus pdlcemon (=paniscus) : a single specimen caught by 

 Salvin near Chambery. 



February 23rd, 1880. 



