124 EXPLANATION OF PLATES. 



Fig. 21. Branch of mulberry tree bearing 

 male cocoons and female 

 scales in masses. 1 j 1 



Fig. 22. Female pupa taken out of a scale. 



Ventral view. B. oc. i 



Fig. 23. Posterior portion of female pupa. 



Dorsal view. D. oc. 1 



Fig. 24. Posterior portion of female pupa. 



Ventral view. ,, 



