COMMON GUM SCALE. 95 



somewhat in check. Fortunately, this pest has never been 

 known to attack ordinary fruit trees, but too much de- 

 pendence must not be placed on the present forbearance 

 of this formidable insect. 



The Eucalyptus scale under notice is found over nearly 

 the whole of Australia, and, as stated, is subject to the 

 attacks of several parasites. 



