Anopheles gigas. 



Head brown grey in the middle ; proboscis long, deep brown, 

 curved ; palpi long with deep brcfwn scales, rather thin, not quite 

 as long as the proboscis ; antennae pale brown. 



Thorax pale fawn-coloured in the middle ; dark rich brown on 

 each side, and a narrow thin dark median line ; the middle area with 

 frosty grey tomentum and narrow curved hairs ; scutellum pale ; 

 metanotum chestnut brown. 



Abdomen deep brown with long golden hairs. Wings large 

 the costa black with three creamy spots, the black forming two 

 large black spots which extend over the first long vein and upper 

 branch of the second and base of the fork cell, there is also a black 

 patch on the lower branch of the sub-marginal cell, and two on the 

 stem, one basal ; a small dark patch at the base of the third long 

 vein, all the rest creamy-yellow ; a black patch at the apex of each 

 branch of the second posterior cell and another at the base of the 

 cell, greater part of the stem dark-scaled ; three black patches, the 

 median one large, on the upper branch of the fifth vein, base of the 

 fork dark, and another dark patch towards the base of the vein ; 

 sixth vein mostly black-scaled with a median pale patch ; fringe 

 pale where the veins join the border of the wing, except at the 

 ends of the fifth vein, which have no pale fringe spot, but a pale 

 area between the two branches ; supernumerary cross vein nearer 

 the apex of the wing than the mid-cross vein, the posterior cross 

 vein nearly three times its length distant from the mid-cross vein. 

 Halteres with dense black knob. 



Legs long, with coxae and trochanters pale, almost white, re- 

 mainder deep brown with traces of basal pale banding especially to 

 the metatarsi and tarsi of the hind legs. 



Habitat. Coonoor, Nilgherri Hills, India, 6,000 feet. 



GROUP IX. 



Types : A. aitkeni and A. immaculatus. 



21. ANOPHELES AITKENI (James). 

 (Figure facing page 120, Plate IX, Fig. 3.) 

 Reference : Theobald, Monog. Culicid., Vol. Ill, p. 22. 

 A small mosquito of a uniformly dark colour and with un- 

 spotted wings. 



[119 



