86 



PERCY SLADEN TRUST EXPEDITION 



short, the first slightly longer and much narrower than the second, its stem nearly two- 

 thirds the length of the cell, its base if anything slightly nearer the apex of the wing than 

 that of the second fork-cell, stem of the latter nearly as long as the cell ; mid cross-vein 

 longer than either the supernumerary or the posterior, the latter about its own length 

 distant from the mid cross-vein. 



Halteres pallid. 



Length. 3'5 to 4 mm. 



Locality. Aldabra : Takamaka (J. C. F. Fryer), 1908 — 9. 



Observations. Described fi-om a series of nine females. There is some slight variation 

 in the thorax, some showing a more uniform appearance than others. The abdomen also 

 varies, some showing extra and more prominent median extensions of the basal white 

 bands, but the median lateral white abdominal spots, the scattering of golden scales on the 

 thorax and legs and the mottled wings should at once separate it. 



In some respects {i.e. wings) it bears some resemblance to a Grabhamia. 



Fig. 4. Culex scottii, nov. sp., ? . 



Fig. 5. Culex scottii, nov. sp., head of (J . 



Ill 



Genus Culex, Linnseus. 



Linnaeus, Linn. Syst. Nat. Ed. x., 1758, 602 ; Theobald, Monog. Culicid. i. 326, 1901, 

 157, 1903, iv. 387, 1907, v. 322, 1910. 



5. Culex scottii, nov. sp. (Plate 4, fig. 3 and Text-figs. 4 — 7). 



Head brown with golden scales ; palpi and proboscis brown ; thorax deep rich brown 

 with two double median parallel golden-scaled lines and a curved lateral golden scaled 

 line, acutely bent in at the middle of the mesonotum and a short golden scaled line over 

 the root of each wing, sharply defining off two prominent anterior deep brown areas, two 

 narrower posterior ones and a thin median area. 



