168 



A. T. STANTON. 



to eighteen short, broad leaflets with, filaments. The average length of the leaflets 

 on the mid-abdominal segments is 0*06 mm. The average relation of length of 

 filament to total length of leaflet is as 1 to 6. The short filament is indented at its 

 base and truncate. 



7. Anopheles kochi, Donitz,* (fig. 11). 



Average length at maturity 4*0 mm. 



Head : Anterior clypeal hairs. Inner hair long and slender, generally with few 

 lateral branches ; outer hair very short, about one-fourth the length of the inner, 

 simple. Posterior clypeal hairs, short, simple. Occipital hairs, both long, inner 

 simple, outer branched. 



Fig. 11. Anopheles IcocJii, Don. 



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

 to twelve long narrow leaflets without filaments. 



Abdomen : Segment ii. carries a stellate tuft composed of five to seven short narrow 

 leaflets without filaments. Segments iii.-vii. carry stellate tufts of fifteen to eighteen 

 short narrow leaflets with filaments. The average length of the leaflets on the mid- 

 abdominal segments is 0'60 mm. The average relation of filament to total length 

 of leaflet is as 1 to 3*5. The filament is slightly indented at its base and tapers 

 gradually to a point. 



8. Anopheles leucosphyrus, Donitz, (fig. 12). 



Average length at maturity 5*0 mm. 



Head : Anterior clypeal hairs. Inner hair very long and slender, simple ; outer 

 hair about one-half the length of the inner, simple. Posterior clypeal hairs, long, 

 simple. Occipital hairs, both long, inner simple, outer branched. 



Thorax without a stellate tuft. 



*See also Bull. Eut. Res., v., p. 129 (1914). 



