NEW CULICIDiE FROM THE WEST COAST OF AFRICA. 155 



silvery white puncta ; scutellum silvery white. Abdomen deep brown, 

 unhanded, with basal white lateral spots. Legs deep brown, with 

 apical silvery white bands, most pronounced in the hind legs, the last 

 hind tarsal being all white. 



? . Head deep brown, clothed with dusky flat scales over most of 

 the surface, and some flat creamy ones at the sides ; around the eyes 

 rather large golden narrow- curved scales, and smaller and duller ones 

 at the back ; over the whole surface very long deep black upright 

 forked scales. Proboscis black, with a pale ochreous band slightly 

 towards the apical half. Palpi deep brown and densely scaly ; clypeus 

 brown. Thorax rich deep chestnut-brown, with scattered small golden 

 curved scales ; silvery white flat scales on the prothoracic lobes ; 

 numerous black bristles over the roots of the wings ; scutellum 

 brown, clothed with silvery white flat scales and black border-bristles, 

 six to the mid lobe and some smaller ones with them ; pleuraa brown, 

 with prominent silvery white puncta composed of flat scales ; one large 

 spot of these scales seems to project outwards, and can be seen when 

 the insect is viewed from above, looking almost like a silvery spot close 

 to the roots of the wings. Abdomen deep brown, with basal white 

 lateral spots and pale venter. Legs black, with apical silvery wbite 

 bands as follows : small but prominent on the femora and tibite of all 

 the legs, on all the metatarsi, and on the fore and mid first tarsal 

 segment ; in the hind legs prominent on all the segments, the last 

 tarsal being pure white. All the ungues equal and uniserrated. Wings 

 with the first submarginal a little longer and narrower than the second 

 posterior cell, its base nearly level with that of the second posterior, 

 stem of the first submarginal cell about two-tbirds the length of the 

 cell, stem of the second posterior cell as long as the cell ; posterior 

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

 with pale stem and fuscous and white knot. The scales are dark 

 brown, especially along the oosta, with deep violet reflections towards 

 the base, and a white patch of scales at the base of the costa and first 

 long vein. Length, 4-5 mm. 



$ . Palpi about the same length as the banded proboscis, the two 

 apical segments small and about equal, a pale baud at the base of the 

 apical segment ; on both apical segments, and on the apex of the ante- 

 penultimate, a few long brown hairs. Fore and mid ungues unequal, 

 the mid more so than the front ones, both uniserrated, the tooth of the 

 larger mid unguis near the base and small. Length, 4 to 4*5 mm. 



Habitat. Sierra Leone, West Africa. 



Observations. — Described from two specimens (a male and 

 female) in perfect condition. It is a very marked species, the 

 general ornamentation of the thorax and legs being character- 

 istic. I cannot be certain as to the exact structure of the male 

 ungues, as there is only one specimen, nor the genitalia, which 

 are hidden in hairs and scales. No notes were sent with the 

 specimens. 



Genus Culex, Linnaeus. 



(Syst. Nat. 1738, Linnams ; Mono. Culicid. i. p. 326, 1901, 

 Theobald.) 



