REPORT ON MCSOUITOES. 



249 



The antennae are brown in both sexes, that of the female yellow 

 at the basal two or three joints. 



The thorax is dark brown, with many golden yellow scales 

 evenly scattered over the surface ; the jjleura are paler brown, 

 with a few small patches of white scales. The femora and 

 tibiae are deep brown, yellowish beneath ; the base of the femora 

 and knee-spots also yellowish ; the tarsi brownish black, with 

 very narrow whitish rings at the base of all joints, except the last 



Figure 75. 



Culex sylvestris: i, female adult; 2, anterior, 3, middle, and 4, posterior claws of 

 the male: all much enlarged. (Original.) 



in the front and mid legs. The claws of tlie male in the anterior 

 and mid tarsal joints (fig. 75, 2" and 3) are unequal in size, the 

 larger with a long median tooth, the smaller with a short basal 

 tooth; the posterior claws (fig. 75, 4) are equal, each with a 

 median tooth nearer the base. In the female the claws are alike 

 on all feet, equal and with a single tooth, as in the male poste- 

 rior feet. 



