EXPLANATION OF PLATE 30. 



Pachydi/plosis oryzne, Wood -Mason. 



Fig. 1. A cluster of rice plants several ot which are affected. 



Fig. 2. An affected plant, with the pupa in its natural position exposed. 



Fig. 3. Egg enlarged. 



Fig. 4. Fullgrown maggot. 



Figs. 5 — 7. Different views of pupa. 



Figs. S A 9. The adult fly in sitting and flying attitudes. 



The small outline figures indicate natural sizes. 



