THE ARTHROPODS 395 



Culex Aaopheles 



FIG. 138. Comparison of malarial mosquito and common culex. a, . 

 b, position of larvae at surface of water ; c, position of resting adults ; 

 d, wings ; e, head appendages a, antenna ; p, palp ; t, tongue. Compare 

 lengths of palps of the females. (From Jordan's "Bacteriology" after other 

 authors.) 



