258 BANKS. 



Plate IX. 



Diagram of eighteen egg rafts of Culex fatigans Wied., laid in a single niglit in a 

 jar in laboratory, showing relative lengths of the egg rows. 



Plate X. 



Fig. 1. Adult female of Gulex fatigans Wied. 



2. Adult female of Culex fatigans Wied. in resting position. 



3. Egg of Mansonia annulifera Theob., showing peculiar shape and large air 



cells near neck. 



