DAHLGREN, THE MALARIA MOSQUITO 



■J i 



( )n either side of the proboscis there are two long pointed appendages 

 of the maxillae, the maxillary palps, which serve as organs of touch. 

 In the female Malaria Mosquito they are slender and of uniform thick- 

 ness; in the male the terminal segment is enlarged and hears 

 long hairs (Figs. 21 and 22). In both sexes of the Malaria 

 Mosquito the palps are long, equal in length to the proboscis, and 

 covered with fine scales. In the common Culex Mosquito, the palps of 

 the female are short (Fig. 21), not more than half the length of the 



The Palps 



Jnop/ie/es (Male) 



Cu/ex. (Male 



ANTENNA 



FIG. 21. THE MALARIA ANO THE COMMON MOSQUITO. MALE. 



Suggested by figures of Eysell, in Arch. fur. Schiffs- u. Tropenhygiene. 



.inop/ie/es (female 



Cu/e.x (Female I 



FIG. 22. THE MALARIA AND THE COMMON MOSQUITO. FEMALE 



Suggested by figures of Eysell, in Arch, fur Schiffs- u. Tropenhygiene. 



proboscis; those of the male are long, but their terminal segment is not 

 enlarged, though set with long hairs (Fig. 22). This furnishes a ready 

 means of distinguishing the Malaria Mosquito from the Culex. 



The margin of the chitin bordering on the eyes, appears white or 

 light gray in color. Just behind the light margin is a row of long hairs, 

 which overhang the eves, and in front a tuft of long hairs and scales over- 

 hang the space between the antenna 1 . The remainder of the head is 

 covered with scales. 



