THE LEAD-CABLE BOKER IN CALIFORNIA. 



9 



been caused by the dermestid Perimegatoma variegatum Horn ; more 

 probably, however, the damage was due to Scohicia declivis, which 

 has injured cables at Watson ville. 



Fig. 6. — Hole accidentally bored througli lead sheathing of a cable on a telephone pole by 

 a wood-boring beetle in its efforts to emerge from the wood of the pole. Natural size. 



DAMAGE BY THE CALIFORNIA LEAD-CABLE BORER (SCOBICIA 

 DECLIVIS) TO TREES AND FOREST PRODUCTS. 



CHARACTER OF DAMAGE. 



The usual damage to the wood of trees attacked by the cable 

 beetle is a complete riddling caused by the egg galleries of the beetles 

 and the mines of the larvae. (PI. VII, Fig, 3.) When the insects 

 2047—22—2 



