DIPTERA NEMATOCERA FROM ARRAN AND LOCH ETIVE 59 
DIPTERA NEMATOCERA FROM ARRAN 
NIN ID) IUOXC st BOA AD, 
By F. W. EDWARDS, B.A., F.E.S., British Museum (Natural History). 
IN the early summer of 1919 I spent a fortnight in the 
island of Arran, one of the main objects of the visit being 
the collection of blood-sucking midges and Szsmulium, which 
were reputed to abound to quite as great an extent in 
Arran as in many other parts of Scotland. Since a large 
number of Nematocerous Diptera were obtained, it may, 
perhaps, be of some interest to record the list. A further 
collection was made at Catacol in September 1920 by my 
colleague, Capt. J. Waterston, and he has kindly allowed me 
to add the names of his captures in order to complete the 
record. The result is a very notable enlargement of the 
short list of Nematocera recorded by Verrall (Zu. Wo. Mag, 
vol, xix., 1883, pp. 222-26), nevertheless it would probably 
be quite easy to treble the length of the list. A number of 
species collected (chiefly Chironomine and Sciaride) still 
await satisfactory determination, while no attempt was 
made at the time to make a complete collection of all the 
species which were on the wing, attention being concentrated 
on certain groups. Moreover, the spring of 1919 was very late, 
so that the summer forms were only beginning to appear at 
the end of our stay. Against this, however, it should be 
stated that the weather was perfect the whole time. 
I have taken this opportunity of recording also a number 
of captures made by Capt. Waterston on the shores of 
Loch Etive, Argyll, in August 1919. The names of species 
from this district which have not also been obtained from 
Arran are enclosed in brackets. A number of species 
are now recorded as British for the first time; these are 
marked * in the list. 
For the sake of brevity the following contractions are 
used :— 
B = Brodick Woods, and the shore and hillsides round Mark- 
land Point, also a small number from the slopes of 
Goat Fell, 22nd to 25th May. 
