THE LARVAE OF MALAYAN ANOPHELES. 



167 



Thorax : On the posterior quadrant a fully developed stellate tuft, composed of 

 twelve to fifteen long narrow leaflets without filaments. 



Abdomen : Segment i. carries a fully developed stellate tuft composed of eight to 

 ten long narrow leaflets with ill-defined filaments. Segments ii.-vii. carry large stellate 

 tufts composed of fifteen to twenty broad leaflets with well defined filaments (fig. 9). 

 The average length of the leaflets on the mid-abdominal segments is 0-085 mm. 

 The average relation of length of filament to total length of leaflet is as 1 to 2'5. 

 The filament is deeply indented at its base and is sharply pointed. 



Fig. 9. Anopheles fuliginosus, Giles ; stellate tuft. 



6. Anopheles karwari, James, (fig. 10). 



Average length at maturity 4-5 mm. 



Head : Anterior dypeal hairs. Inner hair long and stout, with fine lateral 

 branches ; outer hair shorter and similarly branched. Posterior dypeal hairs long, 

 slender, sometimes with lateral branches. Occipital hairs. Inner long, simple ; 

 outer long, branched, with four or five divisions. 



Fig. 10. Anopheles karwari, James. 



Thorax without a stellate tuft. 



Abdomen : Segment ii. carries a stellate tuft composed of eight to ten narrow 



leaflets without filaments. 

 (C177) 



Segments iii.-vii. carry stellate tufts composed of fifteen 



f2 



