GREYISH-HORNED BEETLE OF THE WATTLE. 133 



are affected, these should be cut away, if practicable, 

 and burnt for the purpose of destroying the larvse at work 

 inside. Fortunately, however, the sawdust is a sure sign 

 of trouble, and, unlike the workings of the White Ant, 

 gives the key as to what is best to be done. 



The injection of either bi-sulphide of carbon or carbolic 

 acid can also be done by means of a small medical syringe 

 in place of the wire referred to. 



