PLATE 12 



EXPLANATION OF FIGURES 



Pseudococcus 



82 and 83 Posterior half of longitudinal sections of the eggs a short time 

 after the completion of the blastodermic sac. 



83 Longitudinal (oblique) section of a somewhat older embryo than the one 

 represeented in figure 84. 



85 to 87 Oblique longitudinal sections of more older embryos. 



150 



