Genus Quasistegomyia. 167 



ochreous with flat white scales and with a few (3 ?) black border- 

 bristles to the mid lobe ; metanotum dusky black ; pleurae dark 

 brown with flat white scales. 



Abdomen black with dusky black scales, each segment with 

 more or less a narrow band of white scales which are more 

 pronounced laterally ; there are also very prominent large white 

 basal lateral patches, separated from the abdominal bands ; 

 posterior border-bristles small, very pale golden. 



Legs black, bases and under surface of femora grey to white ; 

 first, second and third tarsals of all the legs basally banded with 

 white, in the fore legs the banding of the second tarsal almost 

 imperceptible (last tarsal of hind legs absent). Ungues equal 

 (simple?). Wings rather densely scaled with long lateral rather 

 broad scales and with short broad median ones, first sub-marginal 

 cell longer, but scarcely any narrower than the second posterior 

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



Fig. 49. 

 Wing of Quasistegomyia unUineata. 9 . Theobald. 



its stem about two-thirds the length of the cell, stem of the 

 second posterior cell nearly as long as the cell ; posterior cross- 

 vein sloping towards the base of the wing about three times its 

 own length distant from the mid cross- vein ; the branches of the 

 fifth long vein very long, the cell being nearly as long as the 

 stem : fringe long and dense, especially at the apex, where the 

 scales are broad and sword shaped ; the median-sized fringe 

 scales slope across the long ones. 



Length. — 3 ■ 5 mm. 



Habitat. — Sudan (Major Bray). 



Time of appearance. — September (5.9.05). 



Observations. — In general appearance this species is just like 

 the Stegomyia scutellaris of Walker. It was nearly placed on 

 one side as such, but luckily the flat scales on the mesonotum at 

 the sides of the bare space in front of the scutellum were noticed. 

 The median silvery line also shows a central dark thin line not 



