468 



Explanation of Plates^ 



Explanation of Plates LXVII, LXVIII. 



5. 



nymphal pellicle, X 72. 



PLATE LXVIII. 



I, nymphal pellicle, X 58. 

 posterior margin of nymphal pellicle, 



X 258. 

 adult female, X 120. 

 pygidium of adult female, X 258. 

 adult female, X 70. 

 pygidium of adult female, X 258. 

 nymphal pellicle, X 70. 

 posterior margin of nymphal pellicle, 

 X 450. 



