118 THE ENTOMOLOGIST S RECORD. 
but not as much as might be expected. I have taken it at 5200 ft. on 
June 6th (Bernese Oberland), and over 5200 ft. on June 8th, slightly 
worn (Grisons), and over 6000 ft. on June 24th (Bernese Oberland). 
If one was to draw conclusions from the results of a short visit at 
a given altitude, one would probably conclude that the duration of 
flight was very short; whereas, it is in reality of considerable length. 
The individuals themselves wear very badly, and scarcely a week alter 
the first emergence of the species, worn specimens are to be found. 
This, together with the fact that only a few specimens will most likely 
be seen in a day (except in a very favourable locality), gives the 
impression that the insect is nearly over. It is, however, only the 
result of the irregular emergence; fresh specimens may continue to 
appear throughout a period of as much as eight weeks. The following 
dates illustrate this, and notes from other localities give the same 
results. 
In a marsh near Kandersteg I took a fresh g on May 25th a few 
more on the 27th and 31st, several on June Znd and 8rd, some a little 
worn; no more until June 29th (worn), and on July 3rd another fresh 
specimen, and again on July 8th, also fresh, the last I found in this 
locality. Throughout this period, May 25th to July 8th, I visited the 
locality almost daily. Again, from the Ueschinen Tal, when 
andromedae was more abundant than is usual, I have notes on its 
emergence at altitudes between 4000 and 7000 ft. The following dates 
apply to one locality, no part of which was below 4600 ft. or above 
5200 ft. First seen, May 23rd; June 6th, common, both sexes ; June 
Sth, some worn; June 13th, worn; June 19th, only one quite fresh ; 
June 24th, abundant, fresh and worn; July 2nd, a few yery worn; 
July 6th, one worn; 7th, none; 9th, none; 13th, none; 15th and 
16th, afew fresh and worn; 19th, one a little worn; 20th, one fairly fresh; 
and 21st and 22nd, one each day, both worn; the latter being the last 
time I visited the locality. Had Ileft on the 15th, without having seen 
a single andromedae for eight days, considering it had already 
been on the wing for six weeks, I should naturally have concluded 
it was over. At that date, too (July 15th) it was abundant 1400 ft. 
above the ground when I made these notes. I regret that I was 
unable to remain longer and note when the species finally disappeared, 
but it is not likely it can have lasted much longer. The latest date I 
have noted, at a similar altitude, was August 2nd. This was at 
Lenzerheide, where it appeared at the commencement of the season a 
little later, so one cannot assume that in the Ueschinen Tal 
andromedae would have survived until August. In the neighbourhood 
of Lenzerheide it was more abundant than I have ever seen it 
elsewhere. It would often have been possible to take two or three 
dozen specimens in one morning had one wished to do so. 
Andromedae ig very strong on the wing, and restless; seldom 
remaining long on the same spot. Itis very fond, like most Hesperiidae, 
of settling on moist patches of ground, and even on stones in the middle 
of a rushing mountain stream, This isa remarkable babit, which I 
have not observed in any other species. In the Schwarzbach on the 
Gemmi Pass, I frequently saw andromedae alight and settle on stones 
in the middle of the stream; in some instances the stone selected being 
scarcely raised an inch above the surface of the water. It 1s never to 
be found far from water, and often inhabits very barren areas in the 
