Genus Stegomyia. 



181 



scales in front of the scutellum ; the white scales apparently 

 slightly broader than the brown j scutellum with flat scales, the 

 basal ones black, the apical silvery white ; border-bristles rich 

 brown, five (?) to the mid lobe; there are also numerous long 

 brown bristles over the roots of the wings ; metanotum deep 

 brown; pleurae brown with large silvery- white puncta ; pro- 

 thoracic lobes with white scales. 



Abdomen black, with narrow basal white bands which spread 

 out slightly at the sides, large basal white lateral spots ; venter 

 dark with basal white bands. 



Fore legs dark brown, the first, second and third tarsals with 



Fig. 51. 



Stegomyia W-alba. Theobald. 

 A, thorax ; B, head ; C, femora of 9 



narrow basal white bands, and there is a white spot beneath the 

 apex of the femora; mid legs with a prominent round white 

 spot on one side in the middle of the femora ; apex of femora 

 white ; first, second and third tarsals basally white banded ; the 

 hind femora pale yellow, on their basal two-thirds, apex white, 

 remainder deep brown ; tarsal segments with broad white bands ; 

 ungues of the fore and mid legs rather small, equal, uniserrated, 

 tooth fine. 



Wings with the first sub-marginal cell longer and slightly 

 narrower than the second posterior cell, its stem about half the 

 length of the cell, its base about level with the base of the 

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

 posterior cross-vein nearly three times its own length distant 



