EXPLANATION OF PLATE 30. 



Pachydiplosis oryzae, Wood -Mason. 



Fig. 1. A cluster of rice plants several of whieh are affected. 



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



Fig. 3. Egg enlarged. 



Fig. 4. FuUgrown maggot. 



Figs. 5 — 7. Different views of pupa. 



Figs. S & 9. The adult Hy in sitting and flying attitude.s. 



The small outline figures indicate natural sizes. 



