170 



A. T. STANTON. 



Thorax without a stellate tuft. 



Abdomen : Segment i. carries a stellate tuft composed of five to seven long narrow 

 leaflets without filaments. Segments ii.-vii. carry stellate tufts composed of fifteen 

 to eighteen long narrow leaflets with well defined filaments (fig. 14). The average 



Fig. 13. Anopheles rossi var. indefinitus, Ludl. 



length of the leaflets on the~mid- abdominal segments is O'OS^mm. The average- 

 relation of length of filament to total length of leaflet is as 1 to 2. The filament is- 

 deeply indented at its base and is unusually long and slender. 



Fig. 14. Stellate tuft of A. rossi var. indefinitus, Ludl. 



11. Anopheles sinensis, Wied. (c/. fig. 7). 



Average length at maturity 5 '5 mm. 



The larva of this species can usually be differentiated by the naked eye appearances 

 from that of barbirostris. The larva of sinensis is coloured greenish or yellowish 

 brown, instead of black, as is barbirostris ; also sinensis lacks the whitish bands which 

 are so characteristic of barbirostris. 



