436 A Monograph of Culicidae. 



Legs deep blackish-brown, unhanded, the coxae and base and 

 under side of femora creamy-white ; a faint pale knee spot and a 

 small spot at the apex of the tibiae. Ungues of the fore legs 

 and mid legs unequal, both uniserrated, the larger fore ungues 

 more curved than the mid, hind ones equal and simple. 



Genitalia with broad flat claspers ending abruptly in a narrow 

 portion, the foliate plate very broad and with longitudinal striae, 

 three long flattened processes at the side, the middle one the 

 largest, the third one the shortest ; there is also a single spine 

 bent like a fish-hook. 



The two apical segments of the palpi of nearly equal length. 



The vein scales on the apices of the veins rather broader than 

 usual in Culex, first sub-marginal cell longer and narrower than 

 the second posterior cell, their bases about level, stem of the first 

 submarginal rather less than half the length of the cell, stem of 

 the second posterior not quite as long as the cell ; posterior 

 cross-vein nearly twice its own length distant from the mid 

 cross-vein. 



Length. — 4 mm. 



Habitat. — Sennar, Blue Nile (Dr. Balfour). 



Observations. — Described from a single female and three 

 males. It resembles at first sight C. fatigans, but the paler 

 scaled head and the numerous long upright forked scales separate 

 it \ the thorax too is distinctly ornamented, the two dark ocellate 

 areas being most noticeable. The palpi may be five-jointed, but 

 are heavily scaled so that a small apical segment cannot be seen ; 

 the three small basal segments are very distinct. The last 

 tarsals are gone, so that the characters of the ungues cannot be 

 given. The male genitalia are very marked, otherwise the male 

 might be mistaken for Culex guiarti, Blanchard. 



The pleurae are pale in the £; in the female the pleurae 

 are dark, but the latter effect is undoubtedly due to the body 

 being filled with blood. 



The pale scaled head and scutellum should easily separate it 

 without microscopic examination. 



Culex dentatus. Theobald (1905). 



First Kept. Gord. Coll. Well. Labs., p. 75 (1905). 



Head dark brown with some narrow-curved golden scales, 

 a golden-yellow border round the eyes and a pale patch on each 

 side. Thorax deep brown, ornamented with rich golden-brown 



