U. S. Dept. of Agriculture, Manual of| Dangerous Insects. 



Plate V. 



Dangerous Scale Insects. 



Fig. 1.— The cosmopolitan tea and olive scale {*Fiorinia theae). Fig. 2.— The Mexican agave scale 

 ( Clmjsomphalus agavis). Fig. 3.— The date palm scale (Parlatoria blanchardi). (Original, Sasscer.) 



