PLATE I. 



FII;. 1. 



I 



Fir;. 4 



I- ir,. (5. 



FIG. 7. 



Ftc. 8. 





Tail of Culex Larva 



Fro. 9. 



PLATE I. Fig. 1." Anopheles" eggs. Natural size: Fifir. 2. -Egg of A. roisi, magnified, showing the upper surfac, the lateral floats, and the 

 beaded rim ; Kg. 3. Lateral view of the same ; Fig. It. Raft-like masses of " Culex " eggs, natural size ; Fig. fi.H. raft mass of " Culex " eggs, 

 magnified ; seen from above ; Fig. 6. Lateral view of the same ; Fig. 7. Four " Culex " eggs, greatly magnified ; Firj. 8. Posterior extremity of 

 " Anopheles " larva showing sessile stigmatic apparatus and " palmate hairs" Fig. .9. Posterior extremity of " Culex" larva. 



