8o 



SPECIES OF ANOPHELINiE 



[CH. 



Markings. Wings. Unspotted. 

 Palps. Unhanded. 

 Legs. Entirely unornamented. 

 Scale structure. Head scales narrow and linear, not expanded as 

 in all other Anopheles. No scales on pro- 

 thorax, mesothorax or abdomen. 



Species. 



A. nimba. 

 A. aitkeni. 



Theobald. 

 James. 



A. culiciformis. James and Liston. 

 A. corethroides. Theobald. 

 Synonymy. 



A. pallida. 'L\x<Mo\\ — A. aitkeni (James). 

 A. fragilis. Theobald = y4. aitkeni (James). 

 A. trcacheri. Leicester = ^. aitkeni (James). 



Differentiation of species. 

 Thorax adorned. 



Silvery median and lateral lines .. .4. nimba. 



No silvery lines . . . . . . . . A. corethroides. 



Thorax not adorned. 



Anterior forked cell very long . . . . A. aitkeni. 



Anterior forked cell not unusually long A. culiciformis. 



Group 2. Second segment of female palp.s not disproportionately long, 

 terminal segment not less than half length of penultimate 

 (orthodactylous). 

 {Anopheles Meip^ev^sensu. James. Typespecies A. maculipennis. Meigen.) 



Fig. 33. Anopheles bifurcaius. (Group 2.) 



General characters of group. 



Appearance. Attitude Anopheles-like. Mostly large species with 

 thin palps and slender limbs. 



