COLLECTION OF HEMIPTERA FROM ARRAN, SCOTLAND 159 
ON A SMALL COLLECTION OF HEMIPTERA 
HOVE EEE Sisk OF AVRAN. SCOP LAND 
By E. A. BUTLER, B.A, B.Sc., F.E.S. 
THERE has recently passed through my hands a small 
collection of Hemiptera which was made in the Isle of Arran, 
_in the neighbourhood of Catacol, during a fortnight in 
the late September of 1920, by Capt. the Rev. J. Waterston, 
B.D., B.Sc. He was working at the time specially for 
Diptera, and this collection represents, therefore, merely 
what was casually observed by one whose main efforts ran 
in another direction; but, nevertheless, as very little has 
been done since the days of Buchanan White, George 
Norman, and T. M. Macgregor, to investigate the distri- 
bution of Hemiptera in Scotland, and especially in its so 
numerous islands, even fragmentary information obtained 
by casual observers should be heartily welcomed and may 
appropriately be placed on record as a basis for more 
systematic work in the future. The season of 1920 was a 
bad one generally; the weather during the summer was 
often very unfavourable, and insects were nowhere plentiful ; 
moreover, the time of Capt. Waterston’s visit was somewhat 
late, so that it is scarcely surprising that many of the 
Heteroptera recorded are common species which spend the 
winter. as adults, and that the Homoptera, which, as a 
rule, mature rather later than the Heteroptera, present a 
numerical prominence which they would not have done 
a month or so earlier. 
The island is so near the mainland, that no great 
peculiarity is to be expected in its fauna as distinguished 
from that of the neighbouring country. The collection, 
consisting of 85 specimens, contains 34 species, 18 of 
Heteroptera and 16 of Homoptera, as follow:— 
