SIX WEEKS AMONGST HUNGARIAN BUTTERFLIES. 249 
- On making known that we wished to see the Museum collec- 
tion of Hungarian butterflies, we were most kindly welcomed by 
Dr. Soos, and introduced to Professor Schmidt, who was in 
charge of the insect department. To this gentleman we are 
deeply indebted for his great kindness to us during our stay at 
Budapest, for during that time he placed himself and his know- 
ledge entirely at our disposal, acquainting us with the best 
localities for the species we wished to get, and accompanying 
us there, interpreting, and assisting us in every possible 
manner. This assistance was exceptionally valuable, for Buda- 
pest is a most difficult district to work, primarily because all the 
best localities are at some distance, and also because there does 
not appear to exist a suitable map of the environs. 
On the 1st of June we accompanied Professor Schmidt to 
Kamaraerdo, our chief object being to obtain series of the two 
local species of Chrysophanus found in the Danube marshes, 
C. dispar var. rutilus, and C. thersamon. To my note on the 
former species (see ‘Entomologist,’ antea, pp. 219-220) I will 
only add that on this day I captured twelve males and three 
females, most of them in perfect condition. Of C. thersamon I 
obtained eleven males and one female, all in good order. 
C. thersamon, unlike C. var. rutilus, frequents flowers, chiefly 
those of Salvia pratensis, settlng on them and exposing its bril- 
liant upper side to catch the warmth of the sun. Great quantities 
of Aporia crategi were flying everywhere, and some of the assem- 
blies congregated on the damp patches on the road were enor- 
mous, and must have consisted of several hundred individuals. 
The country collected over was a valley extending from 
Kamaraerdo station to the village of Promontor, some three 
miles distant, and from which electric trams conveyed us to the 
foot of the Franz Josef Bridge at Budapest ; asa matter of fact, 
after our first journey we travelled by tram, which we found 
much quicker and more convenient than by taking the train. 
On a subsequent visit to this locality (June 4th), Professor 
Schmidt being unable to accompany us, Dr. Soos most kindly 
acted as our chaperon. This was very desirable and probably 
saved us some unpleasantness, for the butterflies were on 
cultivated ground, the owners of which I understand have been 
known to object strongly to strangers wandering amongst their 
crops, but the Museum authorities can go anywhere. On this 
occasion Chrysophanus var. rutilus was abundant, and my bag of 
twenty-three examples included half a dozen females. I also 
captured a fair example of Thais polyxena, and saw a few small 
larve of that species on the food-plant, Aristolochia clematitis. 
Argynnis niobe var. erts was just coming out. Chrysophanus 
thersamon was by this date practically over, and all the examples 
observed were hopeless as cabinet specimens. 
On the 6th of June we again visited the marsh; but the day 
