THE LEAD-CABLE BORER IX CALIFORNIA. 



9 



been caused by the dermestid Periniegatoma variegatum Horn: more 

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

 has injured cables at Watsonville. 



Pig. 6. — Hole accidentally bored through 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 



