PLATE II. 



^'Yii.tura.l size. '{ 

 Position of Culex in water 



f i i t-m nkuSh > -; ; ~-"-^ _"~* *= - 



Enlc. 



JEnla.rq&d- 



FIG. \. 



Position, of Anopheles 



in. Wetter- 



Fio. 



-p size 



Fin. 3. 



FIQ. 4. 



PLATE II. Fig. 1. Larva of " Culex," showing the position at the surface of the water ; .Figr. 2. Larva of "Anopheles," showing the same ; Fig. 

 Pupa of "Culex" ; Fig. It. Pupa of "Anopheles. " 



