92 



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Fig. 1. ban Jose scale, mature male. 



Fig. 2. San Jose scaie: «. mature female scale, 

 showing"- general form of the insect and the 

 threadlike mouth-bristles with which it pierces 

 the bark and sucks sap from the tree; h, caudal 

 end of female scale, showing lobes and spines. 



