FIVE WEEKS IN THE VOSGES. 83 
was much in evidence, sunning itself on the walls and rocks, 
but it was so battered and torn that it was not possible to find 
specimens of cabinet rank, and we had to defer the capture of a 
series until we visited the summits of the mountains, where it 
was in more presentable condition. Jssoria lathonia, after the 
manner of its kind, was seen to settle on the dusty road and 
fell a prey to the net. Crossing some marshy meadows below 
the forester’s house on the Plain du Canon, Brenthis ino was 
found flying among the more plentiful Melitea athalia. Hugonia 
polychloros was first taken on June 29th, and July Ist 
we visited the lower slopes of the Ballon de Servance, 
a locality which proved afterwards to be our most prolific 
hunting-ground. On an uncultivated piece of hillside, where the 
children were busy picking whortleberries, we first made 
acquaintance with Hrebia ligea, each of us catching two of 
them. This insect was subsequently found flying in sunny 
places at all elevations above the meadows which extend up to 
the forest zone, and also on the open summits of the higher 
mountains. 
In the southern section of the Vosges are found the most 
lofty peaks in the range, rising to a height of four or five thou- 
sand feet, the average altitude of the hills being about three 
thousand feet. These high points are called Ballons. Towering 
above St. Maurice are two of the most important of these forest- 
clad heights. The huge granitic mass of the Ballon de Servance, 
projecting into the valley and forcing the Moselle to turn north 
westwards almost at a right angle, rises boldly above the village 
and forms a watershed, the drainage on the one side being gener- 
ally northwards through the Moselle and other tributaries of the 
Rhine into the North Sea, while on the opposite side of the 
divide the streams flow southward tothe Mediterranean. There 
are forests of beech and fir on the slopes, and above them 
rise the rounded grassy summits almost bare of trees or bushes, 
the haunt of Hrebia stygne and HE. ligea. On July 2nd we took 
advantage of a motor car which runs from the station to the 
hotel near the summit of the Ballon d’Alsace. Arriving soon 
after ten we started to climb to the highest point, across which 
runs the frontier line. Hundreds of H. stygne, mostly in first- 
class condition, were flying in the grass despite the strong wind 
which was blowing, and a very good series was soon secured. A 
fine male iris, seudding along with the wind at a great pace, was 
taken by me on the French side of’ the frontier line, and while I 
was busy with it Mr. Barraud took a fresh female of Limenitis 
popult var. tremule. Subsequently I chased what I believed to 
be L. populi at Charmes on July 30th, but as I did not succeed 
in catching it that locality must not be recorded. After lunch 
the wind dropped a little, and we spent some time in a sheltered 
H 2 
