4 THE ENTOMOLOGIST. 
Fen, it is to be hoped that this will in due course be transformed 
into a nature reserve also. There would then be a sanctuary of 
several miles square which would probably be sufficiently large to 
give the rarer birds, and probably some that have gone, but 
which might under such conditions return, security. 
One does not often hear of the successful planting of a 
Lepidopteron in a new locality, but there is at least one instance 
at Wicken, for the late Solomon Bailey some years ago introduced 
from Chippenham Fen, where it is abundant, the pretty little 
Bankia argentula, which is now abundant and widely distributed 
at Wicken. No doubt it would be possible to introduce other fen 
species also. 
ADDITIONS TO THE LIST OF BRITISH PLANT 
= GALLS. 
By Haronp J. Burxmu, M.A., F.R.G.S. 
In 1912 Mr. E. W. Swanton, of Haslemere, published a book 
on ‘ British Plant Galls’ containing a list of about eight hun- 
dred and twenty species which had come under his notice. This 
list, compiled apparently from various sources, is, I believe, the 
fullest that has been published for Great Britain, and it makes 
an admirable basis for additional work by other observers. As 
the records of galls are sometimes published in the reports of 
local societies, 1t is possible that some have been overlooked in 
the compilation of the list, and in putting forward the following 
list of species my object is chiefly to find out whether they -have 
been observed by other workers in different parts of the country. 
They are all those that have come under my own notice, and 
they do not appear to have been recorded by Mr. Swanton. The 
determinations have been chiefly made from Dr. Houard’s ‘ Les 
Zooceécidies des Plantes d’Hurope et du Bassin de la Méditer- 
ranée. Some of the galls, however, are not to be identified 
with any in this work, and may be new to science. Others, 
again, are apparently new records of the flies or other causers 
for Britain, or merely fresh host plants of gall insects previously 
recorded. 
The greater number are from Derbyshire and Staffordshire, 
as I spent the autumn of 1914 in the Dovedale district. The 
records for Yorkshire and Devon are the results of occasional 
holiday visits during the past twelve years. Other records are 
from the London districts. I have not given the precise locali- 
ties, but have indicated the counties, and have used the follow- 
ing abbreviations :—Dy.=Derbyshire, Dev.=Devon, E.=Essex, 
Mx.= Middlesex, St.=Staffordshire, Sy.=Surrey, and Y.=York- 
