Genus Mansonia. 497 



a narrow white band towards its base. Abdomen black with 

 somewhat irregular, narrow white bands and a few scattered 

 white scales and golden bristles. Legs deep blackish-brown, 

 with some of the segments with narrow white basal bands and a 

 few scattered pale scales over the larger segments. Wings with 

 very deep brown and white scales. 



9 . Head deep blackish-brown, clothed with rather broad 

 pale narrow-curved scales on the occiput, smaller narrow-curved 

 golden ones around the eyes and pale upright forked scales, the 

 sides with grey and black flat scales. Proboscis black scaled, with 

 a narrow white band towards its base and a few white scales here 

 and there on the apical part ; palpi rather swollen apically, clothed 

 with deep black scales and with two irregular narrow bands of 

 white scales on the basal half ; clypeus black ; antennae very 

 deep brown with brown verticillate hairs, basal segment deep 

 black with grey sheen around the summit, and with some small 

 flat creamy scales. 



Thorax deep blackish-brown, clothed with narrow-curved 

 bronzy-brown scales and irregularly ornamented with broader 

 narrow-curved golden scales, with broad narrow-curved white 

 and black scales at the sides just before the roots of the wings, 

 a marked pale area in front of the roots of the wings and pale 

 scales on each side of the bare space in front of the scutellum, 

 much denuded, deep blackish-brown with curved pale golden 

 scales on the mid lobe, with apparently a few flat pale ones 

 basally, side lobes with a few flat black scales ; metanotum deep 

 brownish-black ; pleurae deep brown with small flat creamy 

 scales. 



Abdomen densely clothed with flat black scales, with irregular 

 apical, very narrow bands of white scales, the last few segments 

 with traces of median lateral creamy patches and a few scattered 

 pale scales over all the segments. 



Legs black scaled, the first four tarsal segments of all the 

 legs with narrow white basal bands and a few pale scattered 

 scales on all the femora and tibiae ; ungues equal and simple. 



Wings with large black and white Mansonia scales, those on 

 the sixth vein large and irregularly heart-shaped ; posterior 

 border-scales of the fringe large with long apical serrations, con- 

 tinuations of the scale ribs ; first sub-marginal cell longer and 

 narrower than the second posterior cell, their bases nearly level ; 

 stem of the first sub-marginal rather more than one-third the 

 length of the cell ; stem of the second posterior rather more than 



vol. iv. 2 K 



