116 



PAPERS ON COCCID^ OR SCALE INSECTS. 



vuilleti, Aspidiotus. 

 vuilleti, Ceroplastes. 

 vuilleti, Chionaspis. 



Walkeriana 



Websteriella s. g . . . 



wilga 



Xylococcus 



yiihipse 



zimmermaniii 



zonatum 



Technical 

 Series No. 



Page. 



16 



5:5 



16 



45 



16 



48 



16 



34,61 



12 



18 



12 



17 



12 



2 



16 



35 



16 



53 



16 



83 



12 



9 



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