Genus Culex. 407 



Occiput.— Two golden hairs project forward, darker hairs 

 behind. Scales fusiform, narrow-curved and cream-coloured ; 

 in the midst of these are a great number of others, erect, long, 

 thin and bifurcated, appearing sometimes golden, sometimes dark. 

 At the sides flat white scales which extend on to the head, where 

 are also some hairs. 



Prothoracic lobes. — Dark with rounded and narrow-curved 

 scales, cream-coloured above, white below and long, thick dark 

 hairs inclined towards the front. 



Mesonotum.— Dark yellow, without the microscope ; the 

 ground colour is generally fawn-coloured with very dark patches ; 

 it has scales which sometimes appear to be nearly white, 

 sometimes gold and sometimes dark and those on the sides 

 chiefly black. Three bare lines and many dark chaetae with 

 golden reflections. 



Pleura shiny white and dark patches forming two narrow 

 oblique lines which resemble those of Culex pleuristriatus ; the 

 scales are pearly white and many hairs are placed in rows 

 running in the direction of the coxae. Green is to be seen 

 shining through different parts of the thorax, chiefly soon after 

 metamorphosis, etc. 



Scutellum. — On the middle lobe on each side are three large 

 hairs and the same number on the lateral lobes ; besides these 

 there are other smaller hairs and scales like those on the 

 mesonotum. 



Metanotum. — Large ; with a pale colourless ground colour, 

 dark at the sides. 



Abdomen. — Flat above ; first segment narrow, covered with 

 light transparent scales and yellow hairs ; from the second to 

 seventh segments the dorsum is covered with black scales, over a 

 colourless ground, with lateral pearly white patches; these 

 spread out from the base without reaching the apex and variable 

 in form, sometimes triangular, sometimes square, or half-moon 

 shaped, but with irregular margins ; pale scales prevail ventrally 

 with pointed ( ? apical) dark bands. 



Legs. — Dark with white rings ; yellowish on the ventral side 

 of the femora ; the white rings are narrow and generally include 

 the articulations. Last two hind tarsals yellowish white with some 

 dark scales principally on the apex of the last and on the venter 

 of the apex of the third, where they form nearly dark patches. 

 In the mid legs the last two segments are lighter, owing to a 

 great many transparent scales with a bronze sheen. 



