EXPLANATION OF PLATE XVII, 



DIASPIS ZAMLE. (Page 165.) 

 Fig. 1. Pygidium of adult female, x 250. 



AULACASPIS KOSM. (Page 168.) 

 Fig. 2. Pygidium of adult female. X 250. 



POLIASPIS CYCADIS. (Page 177.) 

 Fig. 3. Pygidium of adult female, x 250. 



