1007.] 37 



attractive, but the lamps being suspended out of reach of the net 

 only a small portion of the specimens seen were cai)tured. 



Papilio machaon. — Arosa, occasional specimens. 



Parnassius apoUo.— Sufers, 4fi73 ft., near Spliigen, common ; delius, Spliigen 

 Pass, common. 



Pieris brassica;. — Arosa ; napi, ab. hryonix. — This species was extremely common 

 at one spot near the river Plessur. At first I could not account for its abundance, 

 having hitherto only taken a few specimens in a day, but the mystery was solved 

 by finding that the ground was carpeted with the plant Biscutella laevigata, upon 

 which I detected the females depositing their ova. I collected about iCO, which I 

 forwarded to my friend, ilr. Charles Fenn, in England, and he has successfully 

 obtained about 30 pupae. He states that the larvse fed freely on " Garden Rocket." 

 The rapidity with which the larvae fed up seemed to be amazing, foi' they were all in 

 pupae by the beginning of August. I may mention tliat no imagines have appeared 

 this autumn. 



Euchloe cardamines, occasionally, Arosa, July 8th to 15th. 



Leptidia sinapis, occasionally, Arosa. 



Colias palseno, scarce, San Bernardino Pass ; phicomone, rather common, 

 Spliigen. 



Oonepteryx rhamni, occasionally, Arosa and Spliigen. 



Limenitis sibylla, Via Mala. 



Pyrameis cardui, very worn, Spliigen, August 2nd. 



Vanessa polychloros, one specimen, Arosa, 5500 ft. ; io, urticx, fairly common, 

 Arosa. 



Melitasa parthenie, athalia, and dictynna (dark specimens), not uncommon, 

 Arosa. 



Argynnis selene, euphrosyne, a few, Arosa ; pales, Spliigen Pass, common, 

 August 1st; ab. napwa, several fine examples; thore, Arosa: a very beautiful 

 series, including three females ; this butterfly was very local, only occurring at 

 one spot on the " Waldweg ;" I was very anxious to find the food-plant of the 

 larva, and I watched the females for some time, but failed to detect them 

 depositing ova; amathusia, Arosa, and Spliigen, fairly common ; lathonia, Sufers, 

 Spliigen, a few, August 3rd ; paphia, very abundant, Via Mala ; I took two ab. 

 valezina : these differ from the New Forest specimens in that the ground colour is 

 slightly lighter ; aglaia, niobe, and adippe, fairly common, Spliigen. 



Melanargia galathea. — I took a very beautiful variety of the ? , the markings 

 on the under-side of the hind-wing being very pronounced and spreading over 

 the wings. 



Erebia epiphron, melampus, Arosa, a few ; eriphyle, one or two at Arosa, fairly 

 common on the Spliigen Pass, mostly females ; pharte, Spliigen, not common ; ceme, 

 very abundant, but local, Tschiertschen, 4430 ft., July 26th ; stygne, Arosa, not 

 very common ; glacialis and ab. plido, Furkahohe, 8020 ft., Arosa, July 18th, not 

 uncommon ; gorge, Spliigen Pass ; lEthiops, Via Mala ; euryale, Arosa, a few, but on 

 the Spliigen Pass they were simply in hundreds, arising in clouds from the muddy 

 places in the road ; ligea, Via Mala, common ; lappona, common on the lower slopes 

 of the Furkahohe ; tyndarus, Strela Pass, a few. 



