Breatfunxf apert/ire^ 



PLATE VII. 



Tiie anterior parts ars ihown in 

 the prone position and tine hinder 

 ends in profile, owing to the body 

 being twisted by the pressure of 

 tine cover glass. 



(^Anopheles Rossi!, Giles, larva) 



JBrea thinq tu be,. 



(Culcx impelicns, WalKcr, larvo) 



Trials 



ferrtaJU/ 



male' 



female' 



Anopheles 



Culex . 



W Gi tfs. 0'. r.at. Obi 



Face p. 264. 



