446 



A Monograph of Culieidae. 



than the mid cross-vein, about one and a-half times its own 

 length distant from the mid. 



Halteres with pale stems and large rather dusky knob. 



Length. — 2 • 8 to 3 mm. 



$ . Similar to ? . Palpi brown ; acuminate last two 

 segments deeper brown, with brown plume-hairs ; the two apical 

 segments nearly equal. Fore ungues unequal, but not so much 

 so as is usual in Culex, the larger with a large tooth, the smaller 

 with a small acute tooth near the base, mid ungues more curved 

 than the fore, both uniserrated, hind small, equal and simple. 



Genitalia with the claspers curved with a membranous 

 expansion on one side and a small terminal segment ; on the basal 

 lobe is a prominence, with a tuft of three large broad acute spines 



Fig. 197. 

 Culex minutus. Theobald, tf genitalia. 



and two small ones, and at the side of the prominence a blade- 

 like plate, rounded apically, and two small spines arising from a 

 common base. 



Length. — 2 ' 5 to 3 * 1 mm. 



Habitat. — Transvaal (C. B. Simpson). 



Observations. — Closely related to Culex simpsoni, but differs in 

 the male genitalia in which the foliate plate is rounded apically, 

 not acute, and in the three long flat spines being acute and not 

 curved at their apices and in their being as long as, not shorter 

 than, the claspers. 



Culex pallidothokax. Theobald (1905). 



Joum. Eco. Biol. I., p. 32 (1905). 



Head and thorax uniformly pale, fawn-coloured, the latter 

 with two indistinct median darker lines in front ; proboscis dark 



