BUFF-TIP MOTH. 
81 
it was applied by some one who was acquainted with the destructive 
nature of the material if used too freely. 
It does not appear that this Phytoptus or Gall Mite attacks Eed or 
White Currants, therefore (so far as we know) replacing the destroyed 
Black Currant-bushes with the other kinds would be of service. 
Likewise, as this attack spreads to such a serious extent where Black 
Currant bushes are grown together in large areas, as in fruit 
farming it might be worth consideration whether growing the different 
kinds in alternate rows or plots would not be desirable. 
There are many different kinds of deformed growth which are 
caused to various plants or trees by Gall Mites or Phytopti. The well- 
known distorted growth of the twigs of the Birch into great masses of 
a foot or a yard in length, popularly known as “ witch-knots,” is one 
form ; the “ nail galls,” like small crimson spikes, found on the Maple 
and Sycamore leaves is another form ; and the Gall Mites which cause 
them are considered to be of different species, but whether they limit 
their attacks entirely to their own food-plants does not appear to be 
known with absolute certainty at present. 
ELM. 
Buff-tip Moth. Pygcera buceplicila, Stephens. 
PyGjERA bucephala. 
Female moth, caterpillar, and chrysalis. 
The Buff-tip Moth caterpillars often do great harm to the leafage 
of various kinds of trees. From their great size and voracity the 
presence of attack is very plain, and though there is from their habits 
every likelihood of this attack being repeated, if nothing is done the 
