EXPLANATION OF PLATE III. 

 Fig. 1. Chilo simplex (C. S. 1580). 



a, lateral, and, b, dorsal view of larva, x 5. 



o, details of spiracle on fifth segment, more highly magnified. 



d, details of first proleg, seen from below, more highly magnified. 



(Note. — Anterior hair on right side of anal plate was absent in this specimen.) 



Fig. 2. Chilo simplex (C. S. 1561). 



c, Pupa, x 5. 



b, Posterior segments of pupa., lateral view, more highly magnified. 



e, Anal segment of pupa, ventral surface, more highly magnified, 



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