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proceeds. Obtaining its full growth, it cuts the wood 

 away, leaving only the outside bark; then, retreating, it 

 fills the entrance of the hole with fibres of the wood, when 

 the action of the wind severs the whole from the tree and 

 the branch falls to the ground, often while the leaves are 

 yet green. 



Why the insect should cut the branch away, I am. 

 unable to state, since it undergoes its transformation in the 

 branch. The beetle is slender, long horned, of a dull, 

 brown color, sprinkled with gray spots, composed of very 

 short, close hairs, and ranging in length from four and a half 

 to six-tenths of an inch. By collecting the branches in the 

 autumn and destroying them, the development of the 

 beetle can be prevented. 



The Sycamore suffers to some extent from the boring of 

 the Tremex Columba for description see Elm beyond this, 

 no other has, as yet, come under my observation. 



The cleanliness of the Catalpa from insect depredation 

 in our city, has often caused particular attention. The 

 leaves remain perfect, and the indications on the trunk and 

 limbs are free from borers. 



goft 



Lecanium Acericola. RILEY. BARK-LOUSE. 

 (HEMIPTERA, COCCID^E.) 



Especial attention should be called to the ravages of the 

 bark-louse, Lecanium acericola, which are destroying the 

 Soft Maple trees in our city. They were first observed in 

 the summer of 1874, on the trees in front of the ruins of 

 St. Paul's Church on Main Street. Since then they have 



