704 



PARKS 



PLATE No. 263 



THE OYSTER SHELL SCALE 



Photograph by United States Bureau of 



Entomology. 



PLATE No. 264 



THE COTTONY MAPLE SCALE 



Photograph by United States Bureau of 



Entomology. 



PLATE No. 265 



THE TULIP TREE SOFT SCALE 



Photograph by United States Bureau of 



Entomology. 



PLATE No. 266 



BAGWORMS ON ARBORVIT^ 



Photograph bv United States Bureau of 



Entomology. 



